PRODUTIVIDADE DE SOJA EM DIFERENTES POSIÇÕES ENTRE RENQUES DE EUCALIPTO EM CULTIVO CONSORCIADO

Abstract

The intercropping systems can contribute to the sustainability of agricultural systems, however, competition may occur between the species involved. This study aimed to evaluate the effect of intercropping between soybean and eucalyptus in different positions of soybean band in relation to the trees rows. The experiment was conducted in experimental areas of Campus II from Universidade do Oeste Paulista in Presidente Prudente (SP), in an Ultisol, between May, 2010 and March, 2012. It was tested three treatments in different distances of soybean with eucalyptus. The treatments were: 1- west extreme; 2-center of the band; and 3-east extreme. The evaluations were soil moisture, soil temperature and solar radiation during the stage of grains filling of the soybean, in different times of the days, after ten days without rain. In soybean growth between eucalyptus rows distant by 15 m and installed on the north-south direction, the grain yield is higher in the west end and lower in the east end, due to be local with higher and lower incidence of solar radiation during the day, respectively. (English) [ABSTRACT FROM AUTHOR]