Fertilizer schedule
Use the stage cards as a planning checklist, then read country notes for local fertilizer language (rates are not prescriptions).
Work in compost or well-rotted manure; add a balanced basal dressing if soil tests low in P/K.
Band a light starter fertilizer near the row; avoid burning young roots with high-salt products.
Side-dress with nitrogen for leafy growth if leaves pale; water in thoroughly.
Shift toward potassium and steady moisture for fruiting vegetables (tomato, pepper, cucurbits).
Excerpts from CropWhen calendar notes that mention fertilizer, manure, NPK, or related terms.
basal fertilizer: 25 to 30 T manure / ha, 80-100 U of N / ha, 100-120 U P / ha, 200-240 Ude K / ha; Fertilizer maintenance: 160KG 200 KG Urea and sulphate of potash two months after planting - Irrigation: water requirement 4000-6000M3 / ha
Irrigated. Early autumn ploughing with organic manure application and NPK application at the time of plantation. Second fertilization with nitrogen application at the period when plants grown at the 4-5 leaves seedling stage.
Irrigated. Early autumn ploughing with organic manure application and NPK application at the time of plantation.
Absorbing Irrigation to take up moisture, organic manure apllication at the time of land preparation. NPK application at the time of land prepration. Second nitrogen application in the period of the first cultivation when plants are grown at the stage of 4-5 leaves seedlings.
The potato is generally cultivated in large part during the first and second growing season on hill over large areas and in the dry season swamp on small plots. 80x50 cm spacing. Harvests from marshes are ex for home consumption in households for the famine begins to ring with the beginning of October after planting because there is not much in attics. The potato comes in rotation with corn, wheat or open field. NPK fertilizers and organic manure is used in the planting hole at planting time. There is no practice of irrigation.
Follow the stage cards above (soil prep → planting → mid-season). Exact rates depend on soil tests and local packages — FAO notes below show how growers describe fertilization in different countries.
Treat them as historical/field guidance, not a prescription for your plot. Units and products differ by country. Confirm with agricultural extension before applying.
Not a fertilizer prescription. Over-application wastes money and can harm plants and waterways. Follow local extension packages.