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: 65 u phosphorus before sowing, 15 U of nitrogen / ha at planting and 15U nitrogen tillering
late varieties are sown after the early-varieties Fertilization: 65 u phosphorus before sowing, 20 U of nitrogen at planting and 20 U nitrogen tillering
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. 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
barley requires fertile soils, but supports poor quality land and adapts to higher latitudes.
Balanced fertilizer use is necessary for good crop yield.
Sowing in open field; NPK fertilization; 300 seeds / m2
Sowing in open field; NPK fertilization; 250 seeds / m2
Sowing in open field; NPK fertilization; 280 seeds / m2
Grown in parts of Kapchorwa & Bukwa districts, rain fed, direct seeding, herbicides used with DAP fertiliser at planting, contract crop with Uganda Breweries
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.