Time and Method of Application:
Under irrigated conditions, apply whole of phosphorus and potash and half of the dose of nitrogen at the time of sowing by pora method and the remaining half nitrogen at crown root initiation stage. Urea may be used as a source of nitrogen which should be applied after irrigation or rainfall.
Under rainfed conditions, first half dose of N should be applieSSd at sowing time by pora method and the remaining half dose of N at the first rainfall.
The doses of fertilizers are for average soil fertility conditions. In order to obtain maximum profit, apply fertilizer on soil test basis. If farm yard manure has been added to the wheat crop, the fertilizer doses should be adjusted accordingly. Liming @ 1 tonne/ha may be applied about 20 days before sowing of wheat to acidic soils but soils may be got tested for lime. Lime once applied can serve the purpose for 2-3 years. Target yield concept for wheat crop should be applied.
Zinc deficiency occurs invariably in coarse textured soils and zinc sulphate at the rate of 25 kg/ha should be applied at least 15 days before sowing by broadcast in soils deficient in zinc.
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