Growth, yield and economics of zero till maize as influenced by nutrient management practices in north coastal zone of Andhra Pradesh

A field experiment was conducted during rabi 2014–15 on sandy loam soils of Agricultural College, Naira to study the effect of N levels and micronutrient management practices on productivity and economics of maize under zero till conditions. The experiment was laid out in split-plot design with three nitrogen levels and seven micronutrient management practices, each replicated thrice. Application of 240 kg N/ha (S₃) and supplemented withfoliar feeding of micronutrient mixture (F₆) recorded the highest kernel yield, maximum net returns (Rs. 86773/ha) and B: C ratio (2.1), which, was, however, on a par with 180 kg N/ha and supplemented with foliar feeding of micronutrient mixture.