Effect of nitrogen, phosphorus and zinc on yield, uptake by maize and post-harvest nutrient status in a vertsiol of Marathwada region

2016

English

A field experiment was conducted at Experimental Farm, AICRP on Integrated Farming Systems, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani. The experiment was laid in split plot design comprising two main plot factors i.e., Nitrogen, Zinc and Phosphorus as Sub-plot factor. Nitrogen was taken at three levels (100,125 and 150 kg ha-1), Zinc at two levels (25 and 35 kg ZnSO4 kg ha-1) and Phosphorus at three levels (50, 75 and 100 kg ha-1). Application of 150 kg N ha-1, 100 kg P ha-1 and 35 kg Zn ha-1 recorded significantly higher grain yield (6705.8 kg ha-1) and Stover yield (7161 kg ha-1). The uptake of the nutrients viz., Nitrogen (167.41 kg ha-1), Phosphorus (49.72 kg ha-1) and Zinc (17.4 kg ha-1) as well as nutrient status post harvest of maize was highest with the 150 kg N ha-1, 75 kg P ha-1 and 35 kg ZnSO4 ha-1. But the results were at par with the 125 kg N ha-1, 75 kg P ha-1 and 25 kg ZnSO4 ha-1. From the results, it was concluded that the maximum yield, uptake by maize & post-harvest nutrient status could be achieved by judicious application of chemical fertilizers (N, P & Zn).

Keteku, A. K.; Narkhede, W. N.; Khazi, G. S.