Efeito de estrume bovino no rendimento do milho forrageiro

Abstract

The experiment was carried out in the Experimental Field of the Faculty of Agronomy and Engineering at Universidade Eduardo Mondlane in Maputo, from June to October 2016, in sandy soil. The experiment consisted of a Completely Block Design Randomized with 4 replications, doses of 0, 20, 40.55 and 70 ton/ha of manure were tested bovine and a dose of 200kg/ha of NPK was used as a control, the maize variety used was MRI 594. The data obtained were processed through the statistical package Stata 10.0, where ANOVA was performed at a 5% probability level, Tukey's test for the comparisons of means and Pearson's correlation between the variables plant height, height of insertion, stem diameter, mass of stem and leaves, mass of ears without straw, mass ear total, ear straw mass, plant green mass. The results obtained under the conditions in which the experiment was conducted show that the application of 40 ton/ha of cattle manure increases the insertion height (1.09 m) in comparison with the non-application and with the application of NPK (200 kg/ha), which made the culture had (1m) insertion height, there was no effect of cattle manure on the height of the plant, in the diameter of stem and mass of ear straws. The dose of 70 ton/ha provided greater mass of stem and leaves (51.24 ton/ha), mass of ears without straw (15 ton/ha), green mass (74.25 ton/ha). The results of the study show that cow manure can replace NPK without lowering forage maize crop yield.