Efeito de doses de esterco bubalino na produtividade de milho verde e silagem, em terra firme no Amazonas

Abstract

The use of buffalo manure in the soil makes it possible to produce corn in upland areas in Amazonas, improving soil attributes, in addition to lowering costs. This research aimed to test the influence of different doses of buffalo manure on growth, green corn yield and silage quality. AG1051 hybrid maize plants were cultivated for 90 days under field conditions, at 75 days after emergence (DAE) green maize was harvested and at 90 DAE silage was carried out. A randomized block design (DBC) was used with six treatments (0, 30, 60, 90, 120 t ha-1 of buffalo manure and mineral fertilization - 170-120-140 kg ha-1 of N, P2O5 and K2O, respectively) with four replications, totaling 24 experimental units. The nutritional status of the soil, before and after application of the treatments, and of the plant, growth parameters, productivity and proximate composition of the silage were determined. The doses of buffalo manure promoted improvements in soil chemical properties and satisfactory increases in macro and micronutrients in shoot dry mass (DMPA), as well as in green corn and silage yield. The use of buffalo manure proved to be an alternative for fertilizing the AG1051 hybrid corn, as it is as efficient as mineral fertilization.