knowledge_base/sources.json

{
  "schema_version": 1,
  "collection": "FieldSabi Nigeria agricultural reference collection",
  "sources": [
    {
      "id": "iita_maize_2020",
      "title": "Guide to Maize Production in Northern Nigeria (Revised Edition 2020)",
      "publisher": "International Institute of Tropical Agriculture (IITA)",
      "year": 2020,
      "url": "https://biblio.iita.org/documents/U20BkKamaraMaizeNothomNodev.pdf-0fe7595936d0dfc6f3535474610e8cbe.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "maize",
        "planting",
        "soil",
        "pests",
        "harvesting",
        "storage"
      ],
      "geography": [
        "Northern Nigeria"
      ],
      "include_pdf_pages": [
        [
          8,
          19
        ],
        [
          21,
          22
        ]
      ],
      "review_status": "source_checked",
      "scope_note": "Northern Nigerian savannas; planting calendars and varieties do not automatically apply to southern Nigeria. Detailed herbicide tables and fumigation instructions are excluded from the starter index.",
      "rights_note": "Publisher PDF is publicly accessible. No blanket redistribution/commercial licence is asserted; consult the publisher's terms. Downloads remain local and are excluded from the code bundle.",
      "sha256": "91fa0f5142b5a6b75033edcdcde7797c56c6cc922a2d0206acb9e9e53a612d80",
      "source_checked_on": "2026-09-28"
    },
    {
      "id": "iita_cassava",
      "title": "Cassava system cropping guide",
      "publisher": "CABI / Africa Soil Health Consortium; hosted by IITA",
      "year": 2014,
      "url": "https://biblio.iita.org/documents/U14ManHauserCassavaNothomDev.pdf-17f44bfa7d7f043e272fa389a4e9ef59.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "cassava",
        "planting",
        "soil",
        "intercropping",
        "weeds",
        "harvesting",
        "farm_business"
      ],
      "geography": [
        "Sub-Saharan Africa"
      ],
      "include_pdf_pages": [
        [
          6,
          31
        ],
        [
          50,
          60
        ]
      ],
      "review_status": "source_checked",
      "scope_note": "Regional cropping-system guidance; confirm local conditions. Detailed fertilizer calculations and lookup tables are outside this starter index. Historical economic examples are not current prices.",
      "rights_note": "CC BY 3.0, as stated on PDF page 2. Attribute Hauser, S. et al. (2014), Cassava system cropping guide, Africa Soil Health Consortium, Nairobi. https://creativecommons.org/licenses/by/3.0/",
      "sha256": "e3021366052c7747befb14474ea9aa53c930270f8437b99244fd052720a42d24",
      "source_checked_on": "2026-09-28",
      "local_path": "publications/iita_cassava.pdf"
    },
    {
      "id": "iita_cowpea_2018",
      "title": "Guide to Cowpea Production in West Africa",
      "publisher": "International Institute of Tropical Agriculture (IITA)",
      "year": 2018,
      "url": "https://biblio.iita.org/documents/U18BkOmoiguiGuideNothomDev.pdf-e8e868ef1c4a99866b82f5c387311694.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "cowpea",
        "planting",
        "soil",
        "pests",
        "harvesting",
        "storage"
      ],
      "geography": [
        "West Africa",
        "Nigeria"
      ],
      "include_pdf_pages": [
        [
          9,
          27
        ],
        [
          29,
          29
        ],
        [
          32,
          46
        ],
        [
          55,
          58
        ]
      ],
      "review_status": "source_checked",
      "scope_note": "Country-specific varieties and schedules require checking the passage's country. Fertilizer/herbicide rate tables and detailed chemical treatment/storage sections are excluded.",
      "rights_note": "Publisher PDF is publicly accessible. Consult the publication and IITA terms for reuse; no blanket commercial licence is asserted.",
      "sha256": "a42533a71515f27ba649f41049f58e51a3a2b4656eba5df3ae1cf6fd5d0b96e8",
      "source_checked_on": "2026-09-28"
    },
    {
      "id": "fao_save_grow_2011",
      "title": "Save and Grow: A policymaker's guide to sustainable intensification of smallholder crop production",
      "publisher": "Food and Agriculture Organization of the United Nations (FAO)",
      "year": 2011,
      "url": "https://www.fao.org/4/i2215e/i2215e.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "soil",
        "water",
        "irrigation",
        "pests",
        "crop_rotation",
        "farming_systems",
        "seeds"
      ],
      "geography": [
        "Global"
      ],
      "include_pdf_pages": [
        [
          29,
          38
        ],
        [
          41,
          50
        ],
        [
          53,
          64
        ],
        [
          65,
          76
        ],
        [
          79,
          88
        ]
      ],
      "review_status": "source_checked",
      "scope_note": "General principles and international case studies, not a Nigeria-specific field prescription. This is a 2011 policy/reference guide, not current weather or regulatory information.",
      "rights_note": "The PDF states all rights reserved and describes permissions for reproduction. Original documents and extracted text are excluded from the distributable code bundle; consult FAO before redistribution.",
      "sha256": "a9bc28218c52c52e78d0740a799fd12b3e55bf7586d55a394e576826ebb9df72",
      "source_checked_on": "2026-09-28"
    },
    {
      "id": "fao_poultry_2004",
      "title": "Small-scale poultry production: technical guide (feed and housing sections)",
      "publisher": "Food and Agriculture Organization of the United Nations (FAO)",
      "year": 2004,
      "url": "https://www.fao.org/4/y5169e/y5169e00.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "poultry",
        "livestock",
        "feeding",
        "housing",
        "water",
        "husbandry"
      ],
      "geography": [
        "Global",
        "Smallholder tropics"
      ],
      "include_pdf_pages": [
        [
          17,
          40
        ]
      ],
      "review_status": "source_checked",
      "scope_note": "Only feed resources and general management/housing sections from this PDF part are indexed. Historical husbandry reference; no veterinary treatment chapter or current vaccination schedule is included. Poultry coverage does not imply cattle/goat/fish coverage.",
      "rights_note": "FAO 2004 allows attributed educational/non-commercial reproduction; commercial reproduction requires permission (publication HTML front matter).",
      "sha256": "e38c962e6134c4ec9d7aa90e3232974ad0179b6a4f5add25537923a5cdc5b0c2",
      "source_checked_on": "2026-09-28"
    },
    {
      "id": "naerls_maize_2014",
      "title": "Maize Production, Marketing, Processing & Utilization in Nigeria (Bulletin 217)",
      "publisher": "National Agricultural Extension and Research Liaison Services (NAERLS), Ahmadu Bello University",
      "year": 2014,
      "url": "https://naerls.gov.ng/wp-content/uploads/2022/11/MAIZE-Production-Marketing-Processing-Utilization-In-Nigeria.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "maize",
        "planting",
        "soil"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "Selected southern land preparation, rainfall and seed-sourcing guidance. Forest/savanna calendar lists, historical variety tables, doses and chemical storage instructions excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "c63be1a191a3e267534548acc27463d30409782607366f71480405e204078347",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          5,
          5
        ],
        [
          6,
          6
        ]
      ],
      "text_sections": [
        {
          "pages": [
            5,
            5
          ],
          "label": "Southern land preparation",
          "geography": [
            "Southern Nigeria"
          ],
          "scope_note": "Southern land preparation from a 2014 national bulletin. Southwestern farms differ in ecology. No calendar, fertilizer or pesticide prescription is indexed here.",
          "start": "In the southern parts",
          "end": "(a) (b)"
        },
        {
          "pages": [
            5,
            5
          ],
          "label": "Rainfall establishment before planting",
          "scope_note": "General rainfed maize principle; timing depends on established rainfall, local ecology and year. Regional calendar list is deliberately excluded.",
          "start": "Planting date",
          "end": "However, optimum planting date"
        },
        {
          "pages": [
            6,
            6
          ],
          "label": "Certified seed sourcing",
          "start": "Purchase certified seeds",
          "end": "Table 1"
        }
      ]
    },
    {
      "id": "naerls_rice",
      "title": "Rice Production, Processing, Utilization and Marketing in Nigeria (Bulletin 230)",
      "publisher": "National Agricultural Extension and Research Liaison Services (NAERLS), Ahmadu Bello University",
      "year": 2014,
      "url": "https://naerls.gov.ng/wp-content/uploads/2022/11/Rice-Production-Processing-Utilization-and-Marketing-in-Nigeria.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "rice",
        "planting",
        "soil",
        "water",
        "harvesting",
        "processing",
        "storage"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "Selected national rice production and postharvest principles. Confirm upland/lowland/irrigated system. Calendar lists, pesticide treatments, fertilizer tables, nutrition claims and historical price sections excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "124c55b5dca7a980c17f5c36810d2da786d0dd5a9041ebc3f8bf5a2d56c7df4f",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          3,
          3
        ],
        [
          4,
          4
        ],
        [
          14,
          14
        ],
        [
          15,
          15
        ],
        [
          16,
          16
        ],
        [
          17,
          17
        ]
      ],
      "text_sections": [
        {
          "pages": [
            3,
            3
          ],
          "label": "Land preparation and water management",
          "start": "2.1 Land preparation",
          "end": "(i) Mechanization:"
        },
        {
          "pages": [
            4,
            4
          ],
          "label": "Match rice variety to production environment",
          "start": "2.2 Variety selection",
          "end": "Recommended varieties"
        },
        {
          "pages": [
            14,
            14
          ],
          "label": "Rice harvesting",
          "start": "Harvesting",
          "end": "Storage"
        },
        {
          "pages": [
            14,
            14
          ],
          "label": "Dry and clean storage",
          "start": "Storage Rice paddy",
          "end": "To protect the paddy"
        },
        {
          "pages": [
            14,
            15
          ],
          "label": "Threshing and winnowing",
          "start": "Steps in cottage processing:",
          "end": "Drying Dry the paddy"
        },
        {
          "pages": [
            15,
            15
          ],
          "label": "Drying paddy",
          "start": "Drying Dry the paddy"
        },
        {
          "pages": [
            16,
            16
          ],
          "label": "Purpose of parboiling",
          "start": "Parboiling:",
          "end": "The local parboiling devices"
        },
        {
          "pages": [
            17,
            17
          ],
          "label": "Drying after parboiling",
          "start": "Drying after parboiling:"
        }
      ]
    },
    {
      "id": "naerls_tomato",
      "title": "Heat-Tolerant Tomato Production under Irrigation (Bulletin 242)",
      "publisher": "National Agricultural Extension and Research Liaison Services (NAERLS), Ahmadu Bello University",
      "year": 2016,
      "url": "https://naerls.gov.ng/wp-content/uploads/2022/11/Heat-Tolerant-Tomato-Production-Under-Irrigation.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "tomato",
        "planting",
        "irrigation",
        "water",
        "harvesting"
      ],
      "geography": [
        "Northern Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "Northern Nigerian irrigated heat-tolerant tomato context, revised January 2016. Not southern rainfed tomato guidance. Chemical land treatments, pesticide tables, fertilizer rates and canning procedures excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "72e1910f244067e29c5d207a7ced330355f27f179aa199a77c1fe91e532efe04",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          5,
          5
        ],
        [
          6,
          6
        ],
        [
          15,
          15
        ]
      ],
      "text_sections": [
        {
          "pages": [
            5,
            5
          ],
          "label": "Nursery and transplanting",
          "start": "7.0 NURSERY PROCEDURE",
          "end": "9.0 IRRIGATION"
        },
        {
          "pages": [
            6,
            6
          ],
          "label": "Irrigation and staking",
          "start": "Critical stages of growth",
          "end": "10.0 FERTILIZER"
        },
        {
          "pages": [
            15,
            15
          ],
          "label": "Timely tomato harvest",
          "start": "14.0 HARVESTING",
          "end": "The most important processing methods"
        }
      ]
    },
    {
      "id": "naerls_onion",
      "title": "Irrigated Onion Production and Management (Bulletin 239)",
      "publisher": "National Agricultural Extension and Research Liaison Services (NAERLS), Ahmadu Bello University",
      "year": 2016,
      "url": "https://naerls.gov.ng/wp-content/uploads/2022/11/Irrigated-Onion-Production-And-Management.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "onion",
        "planting",
        "irrigation",
        "water",
        "harvesting",
        "storage"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "Irrigated onion management, revised January 2016. Verify irrigation supply, cultivar/day length and local climate. Calendar, fertilizer and pesticide recommendations excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "1d8a289d12e91727881e00ccc0eac23db1596938fc48c69b3a2b78600b1744e8",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          3,
          3
        ],
        [
          4,
          4
        ],
        [
          6,
          6
        ]
      ],
      "text_sections": [
        {
          "pages": [
            3,
            3
          ],
          "label": "Soil and land preparation",
          "start": "Soil type",
          "end": "Climatic Requirements"
        },
        {
          "pages": [
            3,
            3
          ],
          "label": "Nursery establishment",
          "start": "Preparation of Nursery Beds"
        },
        {
          "pages": [
            4,
            4
          ],
          "label": "Transplanting",
          "start": "Transplanting",
          "end": "Planting Dates"
        },
        {
          "pages": [
            4,
            4
          ],
          "label": "Weeding and water management",
          "start": "Weed Control",
          "end": "Pests and Diseases"
        },
        {
          "pages": [
            6,
            6
          ],
          "label": "Harvest and curing",
          "start": "Harvesting and Processing",
          "end": "Yield"
        }
      ]
    },
    {
      "id": "icrisat_groundnut_2020",
      "title": "Handbook on Improved Agronomic Practices of Groundnut Production in North East Nigeria",
      "publisher": "International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)",
      "year": 2020,
      "url": "https://oar.icrisat.org/11529/1/Groundnut%20Production%20Manual_printed%20version.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "groundnut",
        "planting",
        "soil",
        "crop_rotation",
        "harvesting",
        "storage"
      ],
      "geography": [
        "North East Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "North East Nigeria, especially Borno and Adamawa; do not transfer regional schedules elsewhere. Chemical seed treatments, fertilizer prescriptions and insecticide sections excluded. Sorting does not prove food free of aflatoxin.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "2101952ee19b28c616dfbd891bb7c2f328e9cd105bc83168892ec21ee3d58813",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          4,
          4
        ],
        [
          5,
          5
        ],
        [
          6,
          6
        ],
        [
          7,
          7
        ],
        [
          8,
          8
        ],
        [
          9,
          9
        ],
        [
          10,
          10
        ],
        [
          14,
          14
        ],
        [
          15,
          15
        ]
      ],
      "text_sections": [
        {
          "pages": [
            4,
            4
          ],
          "label": "Site and land preparation",
          "start": "Production Requirements"
        },
        {
          "pages": [
            5,
            5
          ],
          "label": "Seed selection",
          "start": "Variety Choice",
          "end": "Table 1."
        },
        {
          "pages": [
            6,
            6
          ],
          "label": "Rainfed sowing",
          "start": "Sowing and Sowing Date",
          "end": "The seed rate depends"
        },
        {
          "pages": [
            7,
            10
          ],
          "label": "Harvest, drying, storage and shelling",
          "start": "Harvesting Groundnut"
        },
        {
          "pages": [
            14,
            15
          ],
          "label": "Postharvest aflatoxin prevention",
          "start": "Recommended post-harvest practices"
        }
      ]
    },
    {
      "id": "naerls_fish_pond",
      "title": "Fish Pond Site Selection and Construction (Bulletin 96)",
      "publisher": "National Agricultural Extension and Research Liaison Services (NAERLS), Ahmadu Bello University",
      "year": 1994,
      "url": "https://naerls.gov.ng/wp-content/uploads/2022/11/Fish-Pond-Site-Selection-and-Construction.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "aquaculture",
        "soil",
        "water",
        "pond_site"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "Historical earthen-pond site and soil-selection reference only. Not stocking-density, hatchery, treatment, engineering design or water-chemistry dosing guidance.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "a29e46b479b06c35dc931457d90a89899f9cc6128cc0f21a2173c6b86b30e991",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          6,
          6
        ],
        [
          7,
          7
        ],
        [
          8,
          8
        ]
      ],
      "text_sections": [
        {
          "pages": [
            6,
            6
          ],
          "label": "Soil water retention",
          "start": "2.2 Nature of the Soil",
          "end": "a) Pervious Soil"
        },
        {
          "pages": [
            7,
            7
          ],
          "label": "Impervious soils",
          "start": "b) Impervious Soil",
          "end": "c) Peaty Soils"
        },
        {
          "pages": [
            8,
            8
          ],
          "label": "Soil testing"
        }
      ]
    },
    {
      "id": "naerls_fish_water",
      "title": "Water Quality Management in Fish Culture (Bulletin 98)",
      "publisher": "National Agricultural Extension and Research Liaison Services (NAERLS), Ahmadu Bello University",
      "year": 1996,
      "url": "https://naerls.gov.ng/wp-content/uploads/2022/11/Water-Quality-Management-in-Fish-Culture.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "aquaculture",
        "water",
        "farm_business",
        "record_keeping"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "Historical monitoring and farm-record principles only. Pond type and species matter. Treatment tables, chemical corrections, informal oxygen tests, stocking-density recommendations and feeding rates excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "70086e3e5a25a94cb9984bb47d11a70d5e7c9bab087e9c5536761543310e5607",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          21,
          21
        ],
        [
          23,
          23
        ],
        [
          49,
          49
        ],
        [
          50,
          50
        ]
      ],
      "text_sections": [
        {
          "pages": [
            21,
            21
          ],
          "label": "Why monitor pond water",
          "start": "5.0 IMPORTANCE",
          "end": "iii."
        },
        {
          "pages": [
            23,
            23
          ],
          "label": "Measuring water transparency",
          "start": "7.1.1 Measurement of Transparency"
        },
        {
          "pages": [
            49,
            50
          ],
          "label": "Fish farm records",
          "start": "14.0 KEEPING FARM RECORDS"
        }
      ]
    },
    {
      "id": "naerls_fattening",
      "title": "Bull and Ram Fattening (Bulletin 198): housing and equipment sections",
      "publisher": "National Agricultural Extension and Research Liaison Services (NAERLS), Ahmadu Bello University",
      "year": "undated",
      "url": "https://naerls.gov.ng/wp-content/uploads/2022/11/Bull-and-Ram-Fattening.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "cattle",
        "sheep",
        "goats",
        "livestock",
        "housing",
        "husbandry"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "Publication date not established from PDF. Only ram housing and general feedlot equipment; not a complete cattle/goat/sheep husbandry guide. Feed formulae, questionable bull-space units, veterinary procedures and historical budgets excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "e45016e50ea9ed7feba1befeb30ff843c8dd6e7fe8140d6f24999e0c13c7664c",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          6,
          6
        ],
        [
          7,
          7
        ]
      ],
      "text_sections": [
        {
          "pages": [
            6,
            6
          ],
          "label": "Ram housing and ventilation",
          "start": "Construct simple and inexpensive housing"
        },
        {
          "pages": [
            7,
            7
          ],
          "label": "Feedlot equipment"
        }
      ]
    },
    {
      "id": "nihort_amaranth",
      "title": "Amaranth Production Guide",
      "publisher": "National Horticultural Research Institute (NIHORT), Nigeria",
      "year": "undated",
      "url": "https://nihort.gov.ng/wp-content/uploads/2020/12/AMARANTH-PRODUCTION-GUIDE.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "amaranth",
        "vegetables",
        "planting",
        "soil",
        "water",
        "weeds",
        "harvesting"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "NIHORT Nigerian leafy-vegetable guidance; date not printed in retrieved guide. Upload path is not a publication year. Detailed fertilizer prescriptions and poorly extracted density units excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "66e89c21c30aa3a570f765f7eceb406040d04ad790eb12d2f0ecf92f39e985b5",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          1,
          1
        ],
        [
          2,
          2
        ],
        [
          3,
          3
        ],
        [
          4,
          4
        ]
      ],
      "text_sections": [
        {
          "pages": [
            1,
            1
          ],
          "label": "Crop and growing conditions",
          "end": "CHOOSING A VARIETY"
        },
        {
          "pages": [
            2,
            2
          ],
          "label": "Cultivation and nursery",
          "start": "CULTIVATION"
        },
        {
          "pages": [
            3,
            3
          ],
          "label": "Irrigation and drainage",
          "start": "IRRIGATION"
        },
        {
          "pages": [
            4,
            4
          ],
          "label": "Weed management and harvesting",
          "end": "NOTE:"
        }
      ]
    },
    {
      "id": "nihort_pineapple",
      "title": "Guide to the Production of Pineapple",
      "publisher": "National Horticultural Research Institute (NIHORT), Nigeria",
      "year": "undated",
      "url": "https://nihort.gov.ng/wp-content/uploads/2020/12/PINEAPPLE-PRODUCTION-GUIDE.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "pineapple",
        "planting",
        "soil",
        "harvesting"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "NIHORT Nigerian orchard reference; date not established. Confirm suitable climate, drainage and planting material. Fungicide dips, herbicide rates, fertilizer rates and yield promises excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "46c0a376b09a57489f5c46a30807221eb7deb6bc567d62721e60c0e0d5243d6e",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          1,
          1
        ],
        [
          2,
          2
        ],
        [
          3,
          3
        ]
      ],
      "text_sections": [
        {
          "pages": [
            1,
            1
          ],
          "label": "Site and planting materials",
          "end": "Nursery operations"
        },
        {
          "pages": [
            2,
            2
          ],
          "label": "Site selection and orchard establishment",
          "start": "Visual observation",
          "end": "Sketch of orchard layout"
        },
        {
          "pages": [
            3,
            3
          ],
          "label": "Harvest maturity and intended market",
          "start": "Harvesting Harvesting takes",
          "end": "Average crop yield"
        }
      ]
    },
    {
      "id": "nihort_citrus",
      "title": "Guide to Improved Citrus Production",
      "publisher": "National Horticultural Research Institute (NIHORT), Nigeria",
      "year": "undated",
      "url": "https://nihort.gov.ng/wp-content/uploads/2020/12/Guide-to-improved-Citrus-production.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "citrus",
        "planting",
        "soil",
        "nursery"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "Selected nursery/orchard site and seedling sourcing guidance. Date not printed; upload date is not publication date. Mixed-region calendar, spray schedules and fertilizer prescriptions excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "205915bd2ced2e129e86a9a8b7a4eb58c579fac5f13d8cd5ccded26812d0bbf7",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          1,
          1
        ],
        [
          3,
          3
        ],
        [
          4,
          4
        ]
      ],
      "text_sections": [
        {
          "pages": [
            1,
            1
          ],
          "label": "Nursery site selection",
          "start": "CONDITIONS FOR SITES SELECTION",
          "end": "PRE-NURSERY i."
        },
        {
          "pages": [
            3,
            3
          ],
          "label": "Orchard site selection",
          "start": "ORCHARD ESTABLISHMENT AND MANAGEMENT"
        },
        {
          "pages": [
            4,
            4
          ],
          "label": "Sourcing budded seedlings",
          "start": "PROPAGATION",
          "end": "ORCAHRD ESTABLISHEMENT"
        }
      ]
    },
    {
      "id": "naerls_cost",
      "title": "Estimating Farm Machinery Cost (Bulletin 82): cost categories",
      "publisher": "National Agricultural Extension and Research Liaison Services (NAERLS), Ahmadu Bello University",
      "year": "undated",
      "url": "https://naerls.gov.ng/wp-content/uploads/2022/11/Estimating-Farm-Machinery-Cost.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "farm_business",
        "machinery",
        "record_keeping"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "source_checked",
      "scope_note": "Historical accounting concepts only; publication date not established. Not current prices, interest rates, investment advice or a complete costing calculator. Numerical worked examples excluded.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "8666c9b951007a5729c2b2fc1f235569cd09fcbde83106d095bbc59123df713d",
      "source_checked_on": "2026-09-30",
      "include_pdf_pages": [
        [
          6,
          6
        ]
      ],
      "text_sections": [
        {
          "pages": [
            6,
            6
          ],
          "label": "Fixed and variable cost categories",
          "start": "2.0 Costing",
          "end": "Depreciation is a cost"
        }
      ]
    },
    {
      "id": "nihort_tomato_2023",
      "title": "Tomato Production Guide 2023",
      "publisher": "National Horticultural Research Institute (NIHORT), Nigeria",
      "year": 2023,
      "url": "https://nihort.gov.ng/wp-content/uploads/2025/09/Tomato-production-guide-2023.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "tomato"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "pending",
      "scope_note": "Publisher PDF located and downloaded, but scanned pages have no usable text. Awaiting OCR plus visual/text verification; excluded from retrieval. Title/year where available are publisher catalogue labels.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "8cf287af09aa141b7d76d20665741f135597c86b9177ce70ca7e5ffe2d344d79",
      "source_checked_on": "2026-09-30"
    },
    {
      "id": "nihort_tomato_postharvest",
      "title": "Guide to Effective Post-harvest Handling and Processing of Tomato",
      "publisher": "National Horticultural Research Institute (NIHORT), Nigeria",
      "year": "undated",
      "url": "https://nihort.gov.ng/wp-content/uploads/2025/09/Guide-to-effective-post-harvest-handling-and-processing-of-tomato.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "tomato"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "pending",
      "scope_note": "Publisher PDF located and downloaded, but scanned pages have no usable text. Awaiting OCR plus visual/text verification; excluded from retrieval. Title/year where available are publisher catalogue labels.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "6b67cf2c872fe52218ec0a2fbabbcfcf69c96bd25af472c61d108bc27d6a9000",
      "source_checked_on": "2026-09-30"
    },
    {
      "id": "nihort_telfairia",
      "title": "Telfairia production guide",
      "publisher": "National Horticultural Research Institute (NIHORT), Nigeria",
      "year": "undated",
      "url": "https://nihort.gov.ng/wp-content/uploads/2020/12/Telfairia.pdf",
      "format": "pdf",
      "language": "en",
      "topics": [
        "telfairia"
      ],
      "geography": [
        "Nigeria"
      ],
      "review_status": "pending",
      "scope_note": "Publisher PDF located and downloaded, but scanned pages have no usable text. Awaiting OCR plus visual/text verification; excluded from retrieval. Title/year where available are publisher catalogue labels.",
      "rights_note": "Public publisher download; no blanket redistribution or commercial licence is asserted. Consult publisher terms. Full text and raw PDFs are excluded from the distributable code ZIP.",
      "sha256": "c0237fb135ee8e0f5cb031d8b546c74d268ef898cb7ce4c2eecbff34c057d262",
      "source_checked_on": "2026-09-30"
    }
  ]
}