AVALIAÇÃO DA PRODUTIVIDADE DAS SILAGENS DE GIRASSOL, MILHO, SORGO E MILHETO EM DIFERENTES ESPAÇAMENTOS

Abstract

SUMMARY: The experimental work was conducted on the campus of FAFRAM, Faculty "Dr. Francisco Maeda ", located in the municipality of Ituverava, SP, in the period from November 14, 2007 to February 12, 2008, aiming to evaluate the productivity of green matter on crops of sunflower, corn, millet and sorghum in different spacings, for silage. The experimental design was a randomized blocks in a factorial 4 x 4 with two replications. Each plot was formed by three meters, with spacing of 0,50, 0,60, 0,70 and 0,80 meters. The results were significant for the weight of the stem, weight of the chapter and total weight of green matter (PTMV) in sunflower cultivation. For the weight of the sheet was a significant difference for corn. In spacing of 0,60, 0,70 and 0,80 meters, the weights of Stockholm, ear, panicle and PTMV not have significant differences. For the weight of leaf, the spacing of 0,80 provided better average. As the weight of the stem on crops of sunflower, millet, maize and sorghum in the spacing of 0,50, 0,60, 0,70 and 0,80 m, obtained significant results in the four spacing the culture of sunflower registering 28.166,66 kg, 31.526,51 kg, 43.450,20 kg and 39.062,49 kg respectively. It was concluded that the total production of green mass for the cultivation of sunflower, millet and corn was higher with the spacing of 0,80 meters, while the cultivation of sorghum production was higher with the spacing of 0,60 meters. Keywords: Silage. Productivity. Spacings.