Response of wheat (Triticum aestivum) to integrated nutrition of K, Mg, Zn, S and biofertilization

The field experiment conducted on integrated nutrition of potassium, magnesium, sulphur and zinc along with azotobacterization of seeds of wheat var. HD 2285 during rabi season of 1998–1999 and 1999–2000 at Fertilizer Research Farm, Pura (Kanpur Nagar), C.S. Azad University of Agriculture and Technology, Kanpur showed conspicuous and significant effect on yield, content and uptake of nutrients and quality characteristics i.e. protein, lysine and starch. The grain yield obtained with the integrated use of 40 kg K₂O + 30 kg Mg + 40 kg S + 5.25 kg Zn per hectare along with azotobacterization was found to be 51.57 and 48.95 per cent higher than lowest grain yield at control during 1998–1999 and 1999–2000, respectively. Likewise, straw yield in this combination was found to be 71.41 and 83.87 per cent higher than at control during 1998–1999 and 1999–2000, respectively. Content and uptake of N, P, K, S, Mg and Zn were also recorded higher with 40 kg K₂O + 30 kg Mg + 40 kg S + 5.25 kg Zn along with azotobacterization in comparison to other treatments. Integrated application of nutrients along with azotobacterization of seeds also caused beneficial and significant effect on protein and starch contents. Lysine content, in general, decreased up to T₃ but increased at T₄i.e. maximum integration in comparison to control