{
  "total": 24,
  "source": "d1",
  "tracking_since": "2026-10-25T12:38:37.716Z",
  "source_rechecks": {
    "rows": 332,
    "series": 250,
    "last_checked_at": "2026-10-25T13:38:37.000Z",
    "latest_result_counts": {
      "confirmed": 240,
      "unreachable": 5,
      "needs_review": 4,
      "changed": 1
    },
    "method": "Each source URL is fetched and the recorded numbers are looked for in the page (PDFs via pdftotext); anything not confirmed is reviewed by a human. Log: /downloads/price_rechecks.jsonl"
  },
  "observations": [
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      "id": "po_20261025_0311b9bcd945",
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      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": "agritronics",
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      "high": 1650000,
      "currency": "PKR",
      "unit": "per unit",
      "region": "",
      "source_url": "https://agritronics.pk/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
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      "origin": "backfill",
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        "high": 5961,
        "fx": {
          "pair": "PKR/USD",
          "rate": 0.00361244,
          "pkr_per_usd": 276.820884,
          "rate_date": "2026-10-23",
          "source": "ExchangeRate-API open access (fallback for currencies the ECB does not publish)",
          "source_url": "https://open.er-api.com/v6/latest/USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_05713daa71a7",
      "series_key": "ps_e6b1dfb8648cccad",
      "kind": "benchmark",
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      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Drone fumigation in Mexico, application only (chemical extra)",
      "low": 300,
      "high": 800,
      "currency": "MXN",
      "unit": "per hectare",
      "region": "MX",
      "source_url": "https://eavision.com.mx/blog/cuanto-cuesta-fumigar-hectarea-con-dron-mexico/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:05713daa71a780521cff3d09127d0eb032aa14a4dfbbdecf0a67846545b80eb8",
      "supersedes": null,
      "origin": "backfill",
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      "current": true,
      "usd": {
        "currency": "USD",
        "low": 15.97,
        "high": 42.59,
        "fx": {
          "pair": "MXN/USD",
          "rate": 0.0532416,
          "mxn_per_usd": 18.7823,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_08bf570aaf4b",
      "series_key": "ps_58ae236c9ad1e857",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "crop-spraying-drone",
        "drone-seeding-cover-crops",
        "drone-mapping-orthomosaic"
      ],
      "provider_id": "new-hope-corporation",
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      "low": 1000,
      "high": 2000,
      "currency": "PHP",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://newhopecorp.com/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:08bf570aaf4b5fff16824b91b576b47e86f4e90f2ecf20e4d6d9273451d2f2a9",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 15.71,
        "high": 31.43,
        "fx": {
          "pair": "PHP/USD",
          "rate": 0.0157129,
          "php_per_usd": 63.642,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_0c8013ff3cfe",
      "series_key": "ps_d63696d66ff2bdfc",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Service provider rate per spray drone flown — University of Kentucky Extension AEN-171",
      "low": 150,
      "high": 200,
      "currency": "USD",
      "unit": "per hour",
      "region": "US",
      "source_url": "https://publications.ca.uky.edu/sites/publications.ca.uky.edu/files/AEN171.pdf",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:0c8013ff3cfe8f13bf3985d20c69722b1b772c3ab47b66624b7ab51782a9ed81",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 150,
        "high": 200,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_0ecb6644dee9",
      "series_key": "ps_8f2b0884ad58627e",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Buy: DJI Agras T50 spray drone (aircraft from $19,999; spray-ready package $31,500)",
      "low": 19999,
      "high": 31500,
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://www.southeastdronesolutions.com/dji-agras-t50-for-sale",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:0ecb6644dee92662bdb7da6365ddafb093aaac882072a051de3bf394c11d3402",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 19999,
        "high": 31500,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_30cbfc2cf1a2",
      "series_key": "ps_6692e616b860a3ac",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Outsourced drone spraying in Brazil (large flat grain areas at low end)",
      "low": 60,
      "high": 150,
      "currency": "BRL",
      "unit": "per hectare",
      "region": "BR",
      "source_url": "https://www.planonambiental.com.br/quanto-custa-a-pulverizacao-com-drone.html",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:30cbfc2cf1a2caee09250383cf7abaa96b08df2110d19400146c213e51de6b92",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 11.89,
        "high": 29.72,
        "fx": {
          "pair": "BRL/USD",
          "rate": 0.198157,
          "brl_per_usd": 5.0465,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_4ee282566a72",
      "series_key": "ps_47a81d322aabcb44",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Typical custom hire rate for drone spray application (vs ~$12.50/acre crop duster) — University of Missouri Extension",
      "low": 16,
      "high": 16,
      "currency": "USD",
      "unit": "per acre",
      "region": "US",
      "source_url": "https://extension.missouri.edu/publications/g1274",
      "as_of": "2025-03",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:4ee282566a72ac88c44b92261e5d82ab18eadbc1007263cbdbf4a9246c103fe1",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 16,
        "high": 16,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_5bf3585660d0",
      "series_key": "ps_57d53247c88327cc",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": "omega-drone",
      "description": "Drone agrochemical application",
      "low": 390,
      "high": 590,
      "currency": "MXN",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://omegadrone.com.mx/aplicacion-de-agroquimicos-con-drones/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:5bf3585660d09c9a2619e483b53d2a5bc458377c92e8286216f52e0555360b26",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 20.76,
        "high": 31.41,
        "fx": {
          "pair": "MXN/USD",
          "rate": 0.0532416,
          "mxn_per_usd": 18.7823,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_76325fb9b780",
      "series_key": "ps_b20b9a166afe65de",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": "planon-ambiental",
      "description": "Liquid drone application typical range in Brazil",
      "low": 60,
      "high": 150,
      "currency": "BRL",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://www.planonambiental.com.br/quanto-custa-a-pulverizacao-com-drone.html",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:76325fb9b7801fe182891dd96b8abff65945758534eb16adec53e05479355f25",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 11.89,
        "high": 29.72,
        "fx": {
          "pair": "BRL/USD",
          "rate": 0.198157,
          "brl_per_usd": 5.0465,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_7732665c220a",
      "series_key": "ps_b20177679c3825d2",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Custom drone spraying survey average, Iowa 2026 (range $8-$16; chemicals not included)",
      "low": 8,
      "high": 16,
      "currency": "USD",
      "unit": "per acre",
      "region": "US-IA",
      "source_url": "https://farmratebook.com/operations/spray-drone/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:7732665c220a3ec8d4a76398a61e551e7a51bb9cfcdd3554c6b98ccf1570e386",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 8,
        "high": 16,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_7d70a6f83d81",
      "series_key": "ps_abcd57fd26212783",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Drone crop spraying service (ADOZA)",
      "low": 200,
      "high": 200,
      "currency": "ZAR",
      "unit": "per hectare",
      "region": "ZA",
      "source_url": "https://adoza.net/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:7d70a6f83d81ce561d10378d6e7b869613634d6e0267926409f43ede1a0c0ef0",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 12.05,
        "high": 12.05,
        "fx": {
          "pair": "ZAR/USD",
          "rate": 0.0602497,
          "zar_per_usd": 16.5976,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_8c776e98b2f5",
      "series_key": "ps_048fbefe7f0c39d5",
      "kind": "provider_published",
      "use_case_id": null,
      "use_case_ids": [
        "crop-spraying-drone",
        "crop-scouting-ndvi",
        "drone-seeding-cover-crops"
      ],
      "provider_id": "agrosdrone",
      "description": "Drone fumigation from",
      "low": 290,
      "high": null,
      "currency": "MXN",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://agrosdrone.com/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:8c776e98b2f5ceaee4f22d97ea29591891926687ad64b18371e37536863a82d0",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 15.44,
        "high": null,
        "fx": {
          "pair": "MXN/USD",
          "rate": 0.0532416,
          "mxn_per_usd": 18.7823,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_9a3dd279919b",
      "series_key": "ps_33a5d501323caa62",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Drone spraying service in Indonesia, excl. chemicals",
      "low": 150000,
      "high": 400000,
      "currency": "IDR",
      "unit": "per hectare",
      "region": "ID",
      "source_url": "https://remotepilot.co.id/blog/berapa-biaya-sewa-jasa-drone-penyemprotan-pertanian-per-hektar",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:9a3dd279919b804244d522dcca2ee9db98c5e59b60873385b342c37537be6992",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 8.28,
        "high": 22.09,
        "fx": {
          "pair": "IDR/USD",
          "rate": 0.0000552242,
          "idr_per_usd": 18108,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_a52ade83dc0a",
      "series_key": "ps_48e4f002e3efb94e",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Custom drone spraying survey average, Ohio 2026 ($14.98 avg; range $8-$20)",
      "low": 8,
      "high": 20,
      "currency": "USD",
      "unit": "per acre",
      "region": "US-OH",
      "source_url": "https://farmratebook.com/operations/spray-drone/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:a52ade83dc0ab6fb466c0d1dbd3c84c5ec824b6db30b30ebc89906002f180af7",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 8,
        "high": 20,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_c1c04558811a",
      "series_key": "ps_afa2dbf100b92b74",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": "nexag-nex-drones",
      "description": "Drone application floor price within 100 km of Franca/SP",
      "low": 85,
      "high": null,
      "currency": "BRL",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://loja.nexdrones.com.br/pages/servico-de-aplicacao-nexag",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:c1c04558811ab95aa5ad31b18cc29073dc56155367d4ef3574e328cfa635d077",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 16.84,
        "high": null,
        "fx": {
          "pair": "BRL/USD",
          "rate": 0.198157,
          "brl_per_usd": 5.0465,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_c54b9f232419",
      "series_key": "ps_4de4f0fd6ab21548",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": "adoza",
      "description": "Drone spraying service",
      "low": 200,
      "high": 200,
      "currency": "ZAR",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://adoza.net/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:c54b9f2324196c95414cab0cbacdb277ff9b3ba06cb69fa2e9ef0b199db712f9",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 12.05,
        "high": 12.05,
        "fx": {
          "pair": "ZAR/USD",
          "rate": 0.0602497,
          "zar_per_usd": 16.5976,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_c7aaac9b3606",
      "series_key": "ps_c38df5ecaf0735e0",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": "southeast-drone-solutions",
      "description": "DJI Agras T50 from $19,999; spray-ready package $31,500",
      "low": 19999,
      "high": 31500,
      "currency": "USD",
      "unit": "per unit",
      "region": "",
      "source_url": "https://www.southeastdronesolutions.com/dji-agras-t50-for-sale",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:c7aaac9b36067ac40b7cf0bfc1d702ded07038662fb9cfca09c51b548f0f5f20",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 19999,
        "high": 31500,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_c95685714876",
      "series_key": "ps_74d36346da47d52d",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "US average custom drone spray rate, 2025 (down from $21 in 2024) — American Spray Drone Coalition survey",
      "low": 13,
      "high": 13,
      "currency": "USD",
      "unit": "per acre",
      "region": "US",
      "source_url": "https://americanspraydronecoalition.com/wp-content/uploads/2026/01/2025-ASDC-Impact-Survey-Results.pdf",
      "as_of": "2026-01",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:c95685714876e65bf92fdf0984cf7cd326ed16b35681aab74a29867ff050b19b",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 13,
        "high": 13,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_e796f6f4c979",
      "series_key": "ps_a60cf6b0179d34c8",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Drone spraying, lowland rate (30 ha minimum)",
      "low": 1000,
      "high": 1000,
      "currency": "PHP",
      "unit": "per hectare",
      "region": "PH",
      "source_url": "https://newhopecorp.com/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:e796f6f4c9792d2149dedfcaa035f861c8e900d7f6832d674366ac98b523ac36",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 15.71,
        "high": 15.71,
        "fx": {
          "pair": "PHP/USD",
          "rate": 0.0157129,
          "php_per_usd": 63.642,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_e84992218345",
      "series_key": "ps_0e58650a02cd6adf",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": "agritronics",
      "description": "Drone spray service (limited area only)",
      "low": 1200,
      "high": 1200,
      "currency": "PKR",
      "unit": "per acre",
      "region": "",
      "source_url": "https://agritronics.pk/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:e84992218345efd1697ba17a67baa1e742e46053ed98a4c6ba837b8d224b15b6",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 4.33,
        "high": 4.33,
        "fx": {
          "pair": "PKR/USD",
          "rate": 0.00361244,
          "pkr_per_usd": 276.820884,
          "rate_date": "2026-10-23",
          "source": "ExchangeRate-API open access (fallback for currencies the ECB does not publish)",
          "source_url": "https://open.er-api.com/v6/latest/USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_ec8235c8a8e5",
      "series_key": "ps_e7d0698c8b3bb1ec",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Drone spray service (limited area only)",
      "low": 1200,
      "high": 1200,
      "currency": "PKR",
      "unit": "per acre",
      "region": "PK",
      "source_url": "https://agritronics.pk/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:ec8235c8a8e54253df4ac6f0aa56d6959d512c239bd49ce75ad31adc1f1603e1",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 4.33,
        "high": 4.33,
        "fx": {
          "pair": "PKR/USD",
          "rate": 0.00361244,
          "pkr_per_usd": 276.820884,
          "rate_date": "2026-10-23",
          "source": "ExchangeRate-API open access (fallback for currencies the ECB does not publish)",
          "source_url": "https://open.er-api.com/v6/latest/USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_ec98b06ead8d",
      "series_key": "ps_85201be2031c2e3c",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": null,
      "description": "Custom drone spraying survey average, Nebraska 2026 ($15.17 avg; range $13-$20)",
      "low": 13,
      "high": 20,
      "currency": "USD",
      "unit": "per acre",
      "region": "US-NE",
      "source_url": "https://farmratebook.com/operations/spray-drone/",
      "as_of": "2026-10",
      "observed_at": "2026-10-25T12:38:37.716Z",
      "content_hash": "sha256:ec98b06ead8d7f92aebf203f398e4971d6cba3dc88638c0c5ac749d78cb144d5",
      "supersedes": null,
      "origin": "backfill",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 13,
        "high": 20,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261025_2eeeab9ac997",
      "series_key": "ps_cdeb133cee4f1abf",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": "drone-commander",
      "description": "Drone spraying/spreading rate card by application rate: $19/ha (1 kg) to $200/ha (140 L or 100 kg); 30 L/ha spraying = $44/ha (prices effective 1 Mar 2024)",
      "low": 19,
      "high": 200,
      "currency": "AUD",
      "unit": "per hectare",
      "region": "AU-QLD",
      "source_url": "https://dronecommander.com.au/index.php/tips/",
      "as_of": "2024-03-01",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:2eeeab9ac997f3b9f75007b60ed7599abb5a101c82f1edeef5270f6ba3bb5d6e",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 13.34,
        "high": 140,
        "fx": {
          "pair": "AUD/USD",
          "rate": 0.702247,
          "aud_per_usd": 1.424,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    },
    {
      "id": "po_20261025_eca43d10e390",
      "series_key": "ps_b99761c1cae9da57",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "use_case_ids": [
        "crop-spraying-drone"
      ],
      "provider_id": "field-wings",
      "description": "Drone spraying, broadacre low-rate application (customer supplies chemical); rate rises with L/ha",
      "low": 30,
      "high": null,
      "currency": "AUD",
      "unit": "per hectare",
      "region": "AU-VIC",
      "source_url": "https://field-wings.com/pricing",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-25T18:35:04.403Z",
      "content_hash": "sha256:eca43d10e3903cd2db8d59a5c6573b3be4a0f1fb44cab525a2e3aafe15b7f441",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 21.07,
        "high": null,
        "fx": {
          "pair": "AUD/USD",
          "rate": 0.702247,
          "aud_per_usd": 1.424,
          "rate_date": "2026-10-23",
          "source": "European Central Bank reference rates via Frankfurter",
          "source_url": "https://api.frankfurter.dev/v1/latest?base=USD"
        },
        "note": "Converted at the published reference rate on 2026-10-23, not at the price's as_of date. Indicative only."
      }
    }
  ],
  "series": [
    {
      "series_key": "ps_ad3d402016bb320a",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "provider_id": "agritronics",
      "description": "15 L agricultural spray drone purchase",
      "currency": "PKR",
      "unit": "per unit",
      "region": "",
      "source_url": "https://agritronics.pk/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 1650000,
        "high": 1650000,
        "as_of": "2026-10",
        "id": "po_20261025_0311b9bcd945"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:35:16.000Z",
        "result": "needs_review",
        "by": "human"
      }
    },
    {
      "series_key": "ps_e6b1dfb8648cccad",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Drone fumigation in Mexico, application only (chemical extra)",
      "currency": "MXN",
      "unit": "per hectare",
      "region": "MX",
      "source_url": "https://eavision.com.mx/blog/cuanto-cuesta-fumigar-hectarea-con-dron-mexico/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 300,
        "high": 800,
        "as_of": "2026-10",
        "id": "po_20261025_05713daa71a7"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_58ae236c9ad1e857",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "new-hope-corporation",
      "description": "Drone spraying lowland PHP 1,000/ha (30 ha min); seed spreading PHP 2,000/ha",
      "currency": "PHP",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://newhopecorp.com/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 1000,
        "high": 2000,
        "as_of": "2026-10",
        "id": "po_20261025_08bf570aaf4b"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_d63696d66ff2bdfc",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Service provider rate per spray drone flown — University of Kentucky Extension AEN-171",
      "currency": "USD",
      "unit": "per hour",
      "region": "US",
      "source_url": "https://publications.ca.uky.edu/sites/publications.ca.uky.edu/files/AEN171.pdf",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 150,
        "high": 200,
        "as_of": "2026-10",
        "id": "po_20261025_0c8013ff3cfe"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:55.540Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_8f2b0884ad58627e",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Buy: DJI Agras T50 spray drone (aircraft from $19,999; spray-ready package $31,500)",
      "currency": "USD",
      "unit": "per unit",
      "region": "US",
      "source_url": "https://www.southeastdronesolutions.com/dji-agras-t50-for-sale",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
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        "high": 31500,
        "as_of": "2026-10",
        "id": "po_20261025_0ecb6644dee9"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:38.977Z",
        "result": "confirmed",
        "by": "automatic"
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    },
    {
      "series_key": "ps_6692e616b860a3ac",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Outsourced drone spraying in Brazil (large flat grain areas at low end)",
      "currency": "BRL",
      "unit": "per hectare",
      "region": "BR",
      "source_url": "https://www.planonambiental.com.br/quanto-custa-a-pulverizacao-com-drone.html",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 60,
        "high": 150,
        "as_of": "2026-10",
        "id": "po_20261025_30cbfc2cf1a2"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
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    },
    {
      "series_key": "ps_47a81d322aabcb44",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Typical custom hire rate for drone spray application (vs ~$12.50/acre crop duster) — University of Missouri Extension",
      "currency": "USD",
      "unit": "per acre",
      "region": "US",
      "source_url": "https://extension.missouri.edu/publications/g1274",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 16,
        "high": 16,
        "as_of": "2025-03",
        "id": "po_20261025_4ee282566a72"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:55.540Z",
        "result": "unreachable",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_57d53247c88327cc",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "provider_id": "omega-drone",
      "description": "Drone agrochemical application",
      "currency": "MXN",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://omegadrone.com.mx/aplicacion-de-agroquimicos-con-drones/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 390,
        "high": 590,
        "as_of": "2026-10",
        "id": "po_20261025_5bf3585660d0"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:38.977Z",
        "result": "confirmed",
        "by": "automatic"
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    },
    {
      "series_key": "ps_b20b9a166afe65de",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "provider_id": "planon-ambiental",
      "description": "Liquid drone application typical range in Brazil",
      "currency": "BRL",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://www.planonambiental.com.br/quanto-custa-a-pulverizacao-com-drone.html",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 60,
        "high": 150,
        "as_of": "2026-10",
        "id": "po_20261025_76325fb9b780"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_b20177679c3825d2",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Custom drone spraying survey average, Iowa 2026 (range $8-$16; chemicals not included)",
      "currency": "USD",
      "unit": "per acre",
      "region": "US-IA",
      "source_url": "https://farmratebook.com/operations/spray-drone/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 8,
        "high": 16,
        "as_of": "2026-10",
        "id": "po_20261025_7732665c220a"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:38.977Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_abcd57fd26212783",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Drone crop spraying service (ADOZA)",
      "currency": "ZAR",
      "unit": "per hectare",
      "region": "ZA",
      "source_url": "https://adoza.net/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 200,
        "high": 200,
        "as_of": "2026-10",
        "id": "po_20261025_7d70a6f83d81"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_048fbefe7f0c39d5",
      "kind": "provider_published",
      "use_case_id": null,
      "provider_id": "agrosdrone",
      "description": "Drone fumigation from",
      "currency": "MXN",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://agrosdrone.com/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 290,
        "high": null,
        "as_of": "2026-10",
        "id": "po_20261025_8c776e98b2f5"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_33a5d501323caa62",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Drone spraying service in Indonesia, excl. chemicals",
      "currency": "IDR",
      "unit": "per hectare",
      "region": "ID",
      "source_url": "https://remotepilot.co.id/blog/berapa-biaya-sewa-jasa-drone-penyemprotan-pertanian-per-hektar",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 150000,
        "high": 400000,
        "as_of": "2026-10",
        "id": "po_20261025_9a3dd279919b"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_48e4f002e3efb94e",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Custom drone spraying survey average, Ohio 2026 ($14.98 avg; range $8-$20)",
      "currency": "USD",
      "unit": "per acre",
      "region": "US-OH",
      "source_url": "https://farmratebook.com/operations/spray-drone/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 8,
        "high": 20,
        "as_of": "2026-10",
        "id": "po_20261025_a52ade83dc0a"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:38.977Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_afa2dbf100b92b74",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "provider_id": "nexag-nex-drones",
      "description": "Drone application floor price within 100 km of Franca/SP",
      "currency": "BRL",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://loja.nexdrones.com.br/pages/servico-de-aplicacao-nexag",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 85,
        "high": null,
        "as_of": "2026-10",
        "id": "po_20261025_c1c04558811a"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_4de4f0fd6ab21548",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "provider_id": "adoza",
      "description": "Drone spraying service",
      "currency": "ZAR",
      "unit": "per hectare",
      "region": "",
      "source_url": "https://adoza.net/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 200,
        "high": 200,
        "as_of": "2026-10",
        "id": "po_20261025_c54b9f232419"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_c38df5ecaf0735e0",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "provider_id": "southeast-drone-solutions",
      "description": "DJI Agras T50 from $19,999; spray-ready package $31,500",
      "currency": "USD",
      "unit": "per unit",
      "region": "",
      "source_url": "https://www.southeastdronesolutions.com/dji-agras-t50-for-sale",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 19999,
        "high": 31500,
        "as_of": "2026-10",
        "id": "po_20261025_c7aaac9b3606"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:38.977Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_74d36346da47d52d",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "US average custom drone spray rate, 2025 (down from $21 in 2024) — American Spray Drone Coalition survey",
      "currency": "USD",
      "unit": "per acre",
      "region": "US",
      "source_url": "https://americanspraydronecoalition.com/wp-content/uploads/2026/01/2025-ASDC-Impact-Survey-Results.pdf",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 13,
        "high": 13,
        "as_of": "2026-01",
        "id": "po_20261025_c95685714876"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:55.540Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_a60cf6b0179d34c8",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Drone spraying, lowland rate (30 ha minimum)",
      "currency": "PHP",
      "unit": "per hectare",
      "region": "PH",
      "source_url": "https://newhopecorp.com/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 1000,
        "high": 1000,
        "as_of": "2026-10",
        "id": "po_20261025_e796f6f4c979"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:26:35.985Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_0e58650a02cd6adf",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "provider_id": "agritronics",
      "description": "Drone spray service (limited area only)",
      "currency": "PKR",
      "unit": "per acre",
      "region": "",
      "source_url": "https://agritronics.pk/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 1200,
        "high": 1200,
        "as_of": "2026-10",
        "id": "po_20261025_e84992218345"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:35:16.000Z",
        "result": "needs_review",
        "by": "human"
      }
    },
    {
      "series_key": "ps_e7d0698c8b3bb1ec",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Drone spray service (limited area only)",
      "currency": "PKR",
      "unit": "per acre",
      "region": "PK",
      "source_url": "https://agritronics.pk/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 1200,
        "high": 1200,
        "as_of": "2026-10",
        "id": "po_20261025_ec8235c8a8e5"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:35:16.000Z",
        "result": "needs_review",
        "by": "human"
      }
    },
    {
      "series_key": "ps_85201be2031c2e3c",
      "kind": "benchmark",
      "use_case_id": "crop-spraying-drone",
      "provider_id": null,
      "description": "Custom drone spraying survey average, Nebraska 2026 ($15.17 avg; range $13-$20)",
      "currency": "USD",
      "unit": "per acre",
      "region": "US-NE",
      "source_url": "https://farmratebook.com/operations/spray-drone/",
      "observations": 1,
      "first_observed_at": "2026-10-25T12:38:37.716Z",
      "last_observed_at": "2026-10-25T12:38:37.716Z",
      "current": true,
      "latest": {
        "low": 13,
        "high": 20,
        "as_of": "2026-10",
        "id": "po_20261025_ec98b06ead8d"
      },
      "trend": null,
      "last_rechecked": {
        "checked_at": "2026-10-25T13:28:38.977Z",
        "result": "confirmed",
        "by": "automatic"
      }
    },
    {
      "series_key": "ps_cdeb133cee4f1abf",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "provider_id": "drone-commander",
      "description": "Drone spraying/spreading rate card by application rate: $19/ha (1 kg) to $200/ha (140 L or 100 kg); 30 L/ha spraying = $44/ha (prices effective 1 Mar 2024)",
      "currency": "AUD",
      "unit": "per hectare",
      "region": "AU-QLD",
      "source_url": "https://dronecommander.com.au/index.php/tips/",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 19,
        "high": 200,
        "as_of": "2024-03-01",
        "id": "po_20261025_2eeeab9ac997"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_b99761c1cae9da57",
      "kind": "provider_published",
      "use_case_id": "crop-spraying-drone",
      "provider_id": "field-wings",
      "description": "Drone spraying, broadacre low-rate application (customer supplies chemical); rate rises with L/ha",
      "currency": "AUD",
      "unit": "per hectare",
      "region": "AU-VIC",
      "source_url": "https://field-wings.com/pricing",
      "observations": 1,
      "first_observed_at": "2026-10-25T18:35:04.403Z",
      "last_observed_at": "2026-10-25T18:35:04.403Z",
      "current": true,
      "latest": {
        "low": 30,
        "high": null,
        "as_of": "2026-10-25",
        "id": "po_20261025_eca43d10e390"
      },
      "trend": null,
      "last_rechecked": null
    }
  ],
  "note": "Only one observation per series so far: we started recording every price on 2026-10-25 and re-check every source on a schedule. A trend appears when a re-checked source shows a different price (we never overwrite old observations).",
  "pagination": {
    "total": 24,
    "limit": 200,
    "offset": 0,
    "returned": 24,
    "next_offset": null,
    "next": null,
    "prev": null
  },
  "license": "Whirrwork (https://whirrwork.com), CC BY 4.0"
}