Fertilizer schedule
Use the stage cards as a planning checklist, then read country notes for local fertilizer language (rates are not prescriptions).
Apply basal NPK according to local recommendations; incorporate residues or manure where available.
Place starter phosphate near the seed row when soils are cold or low in P.
Top-dress nitrogen in one or two splits if the crop looks N-hungry; avoid late N that delays maturity.
Only apply late N when grain protein or yield response is expected; follow extension rates.
Excerpts from CropWhen calendar notes that mention fertilizer, manure, NPK, or related terms.
late varieties are sown after the early-varieties Fertilization: 46 u phosphorus before sowing, 33 U nitrogen tillering
late varieties are sown after the early-varieties Fertilization: 90 u phosphorus before sowing, 33 U of nitrogen at planting and 30 U nitrogen tillering
Fertilization: basal dressing; 90 U phosphorus, nitrogen fertilization; 250 U nitrogen -the olegos -Elements; Mn -Zn-Cu at a rate of 5l / ha zing and manganese are made to the 14 th day after sowing, while the copper is made to start sade épiaison- Irrigation: the dose ranges from 800 to 1000mm
late varieties are sown after the early-varieties Fertilization: 46 u phosphorus before sowing, 17 U of nitrogen at planting and 33 U nitrogen tillering
Irrigated, rainfed. Direct sowing after land preparation and NPK application at the time of planting
Irigated, rainfed. PK fertilization at the time of land preparation. First nitrogen application has been applied at the beginning of tillering and secon is applied when plants started shooting stage.
Rainfed and Irrigated, rainfed. Direct sowing after land preparation and NPK application at the time of planting
Rainfed.NPK fertilization at the time of land preparation. Second nitrogen application has been applied at the beginning of tillering stage
Rainfed and Irigated. PK fertilization at the time of land preparation. First nitrogen application has been applied at the beginning of tillering and secon is applied when plants started shooting stage.
Rainfed. Direct sowing after land preparation and NPK application at the time of planting
Irrigated. NPK fertilization at the time of land preparation. Second nitrogen application has been applied at the beginning of tillering stage
Irigation. PK fertilization at the time of land preparation. First nitrogen application has been applied at the beginning of tillering and secon is applied when plants started shooting stage.
Rainfed and Irrigated. Direct sowing after land preparation and NPK application at the time of planting
Reinfed.NPK fertilization at the time of land preparation. Second nitrogen application has been applied at the beginning of tillering stage
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.