DESEMPENHO DA CULTURA DO SORGO GRANÍFERO IRRIGADO E ADUBADO COM RESÍDUOS ORGÂNICOS

Abstract

In the cerrado region, the cultivation of sorghum takes the lead in replacing corn, especially in plantations in succession to summer crops, bringing great economic advantages to the producer in the formation of straw, grains and forage. This work aimed to evaluate the growth and productivity of grain sorghum fertilized with swine manure, sewage sludge, cattle manure and chicken litter. The experiment was carried out in a controlled environment at the Instituto Federal Goiano - Campus Rio Verde, in southwest Goiás. The experimental design adopted was completely randomized, in a 2x4 factorial scheme, with four replications. There were two proportions of organic matter (20 and 40% in relation to the volume of the pot) and four types of organic matter (swine manure, sewage sludge, bovine manure and chicken litter). Biometric analyzes of plant height, number of leaves, stem diameter, length, panicle diameter and productivity were performed. The organic fertilizer dose (chicken litter) of 20%, provides better development in the panicle diameter, panicle length, panicle weight, grain weight and panicle dry matter of the grain sorghum, contributing to a better production. Treatments with cattle manure and chicken litter achieved the best results.