Desempenho agronômico do milho safrinha consorciado com forrageiras no Médio Norte de Mato Grosso

Abstract

The growing demand for technologies that provide satisfactory production values and the least possible environmental damage is a reality of modern agriculture. The objective of this study was to verify the agronomic performance of maize second harvest in a simultaneous consortium with forages of the genus Panicum and Urochloa, at a spacing of 0.5 m, within a crop-livestock integration system. The experiment was conducted at Fazenda Vale dos Sonhos, municipality of Vera - MT (12 ° 88 '50 "S, 55 ° 21' 22" W, 384 meters high). The experimental design was a randomized block design with five treatments (maize monoculture, maize / marandu grass, maize / ruziziensis grass, maize / xaraes grass, maize / mombaça grass). The macro and micronutrient foliar contents of maize, some vegetative and reproductive agronomic characteristics of maize, maize dry matter production and dry mass production of forages were measured. The consortium with ruziziensis grass affected plant height, stem diameter, ear length, ear diameter and corn dry mass production. Mombaça grass produced the highest amount of dry mass in relation to the other treatments, although the scarcity of rainfall during the off season affected the development of forages. The corn grain yield was not compromised in any of the treatments, reaching values higher than the national average.