Consorciação de estilosantes Campo Grande e capim-marandu em sistemas silvipastoril e sol pleno durante a fase de estabelecimento

Abstract

The objective was to evaluate the production, structure and botanical com-position of intercropped Marandu palisadegrass and Stylosanthes Campo Grande grown under full sunlight and in a silvopastoral system at different distances from the trees during the establishment phase. A completely randomized design with six replicates was used, in which growth was evaluated in a silvopastoral system at distances of 2.5 and 5.0 m from the trees and under full sunlight. The dry mass of Marandu palisa-degrass was higher under full sunlight (4,074.1 kg/ha) compared to the silvopastoral system (2,283.4 kg/ha) and for the distance of 5.0 m (2,708.1 kg/ha) compared to 2.5 m (1,858.7 kg/ha). The dry mass of Stylosanthes was not influenced by the cultivation sys-tem or distance from the trees and was 134.0 kg/ha. The participation of Stylosanthes in the botanical composition was lower under full sunlight (3.59%) compared to the silvo-pastoral system and lower for 5.0 m (4.76%) compared to 2.5 m (7.32%). Full sunlight also stimulated tillering, percentage of stems and height of Marandu palisadegrass and reduced its leaf:stem ratio. The silvopastoral system and the proximity of trees reduce forage production by Marandu palisadegrass and increase the participation of Stylosan-thes in the botanical composition of the pasture.