Manures and Fertilizers
Rapeseed and mustard respond well both to organic and inorganic manures. If available, apply 15-20 tonnes/ha of FYM or compost at the time of field preparation.
These crops are very sensitive to nitrogen nutrition. Nitrogenous fertilizer in the form of ammonium sulphate is beneficial for the crop. Effect of N fertilizer can be optimized by combining soil and foliar application. Half of the recommended dose must be applied (preferably drilled) at the time of sowing. The remaining half must be applied in the form of foliar spray (1.5-2.0% high volume or 10-15% low volume micronet-35 sprayer). The first spray should be given at the time of flower initiation. The dose of 40 kg N/ha as soil application and 20 kg N/ha as foliar spray proves as good as 80 kg N/ha applied to soil. This method saves 25% of the N fertilizer without affecting the yield.
Rainfed yellow sarson with 30 kg N/ha fertilization only, in Punjab and Delhi. Under irrigated conditions of Gujarat, it is fertilized with 50:50 kg/ha P2O5-K2O. The optimum fertilizer doses recommended for rainfed and irrigated conditions are given below.
Rapeseed and mustard respond well both to organic and inorganic manures. If available, apply 15-20 tonnes/ha of FYM or compost at the time of field preparation.
These crops are very sensitive to nitrogen nutrition. Nitrogenous fertilizer in the form of ammonium sulphate is beneficial for the crop. Effect of N fertilizer can be optimized by combining soil and foliar application. Half of the recommended dose must be applied (preferably drilled) at the time of sowing. The remaining half must be applied in the form of foliar spray (1.5-2.0% high volume or 10-15% low volume micronet-35 sprayer). The first spray should be given at the time of flower initiation. The dose of 40 kg N/ha as soil application and 20 kg N/ha as foliar spray proves as good as 80 kg N/ha applied to soil. This method saves 25% of the N fertilizer without affecting the yield.
Rainfed yellow sarson with 30 kg N/ha fertilization only, in Punjab and Delhi. Under irrigated conditions of Gujarat, it is fertilized with 50:50 kg/ha P2O5-K2O. The optimum fertilizer doses recommended for rainfed and irrigated conditions are given below.
Crop should be supplied with 20 kg sulphur and 1 kg boron/ha as basal dose, wherever the deficiency of these nutrients is noticed. The maximum seed yield of mustard in tarai region was obtained with the recommended NPK + 5 tonnes of FYM (in seed furrows) + 40 kg S + 25 kg ZnSO4 + 1 kg boron/ha + Azotobacter (seed treatment).