Response of macro nutrient and nano zinc on soil health parameters yield attributes of maize (Zea mays L). var white pearly

An experiment was carried out at research farm of soil science and agricultural chemistry, shuats prayagraj during the summer seasons of 20223-24. Effect of different level of N:P: K (19:19:19) and nano zinc on the physicochemical properties of soil, growth, and yield of maize. The design applied in RBD with three level of RDF applied of N, P, K @ 0%, 50% and 100% respectively and three levels of Nano Zn @ 0%, @ 50% and @ 100% respectively, results showed that T₉ was at par than any other treatment in particle density, pore space, water holding capacity, organic carbon, available nitrogen, phosphorus and potassium respectively were found to be significant and followed by T₈ The investigation of NPK (19:19:19), nano zinc (Iffco), and spraying maize crops, different combinations with suggested fertilizer dosages. The treatment T₉ - [NPK @ 100% + Nano Zinc @ 100%] had a significant effect on growth and yield parameters, resulting in a maximum yield of 46.96 q h^-1a and B:C of 2:1. The macro, micro-nutrients, organic manures, biofertilizers and crop residues can sustain the fertility of and productivity of soil for long period of time and can provide higher yield maize and economic of the farmers.