The choice of species is the main factor on the establishment of the sustainable system production. The tolerance of Brachiaria brizantha (Hochst. ex A. Rich.) Stapf for shade let this species to be recommended to implement the sylvopastoral and agrosylvopastoral systems. The objective of this work was to evaluate the productive performance of Brachiaria brizantha (Hochst. ex A. Rich.) Stapf cv. Marandu under different spacings on agrosylvopastoral systems with eucalypt. In December 1999 was planted (in ParacatuMG, Brasil) seedling seed orchard of natural hybrid of Eucalyptus camaldulensis Dehnh x Eucalyptus urophylla S.T. Blake, intercropped with rice in the first year and soybean in the second one. After annual cropping cultivation, was planted the forage, in December 2001. The experimental design used was the randomized blocks, with four repetitions, in split plot, and seven spacings of eucalypt stand [(3x3)+10m, (3x4)+7m, (3x4)+10m, (3x4)+7+10m, (3x3)+15m, 10x3m and 10x4m]. Each split plots, the forage was planted in row and between rows of eucalypt. The photosynthetic photon flux density understory of the stand, the natural and dry matter production and forage quality of Brachiaria brizanhta pasture was evaluated. The results showed that the Brachiaria brizantha forage was higher between rows (shaded) than in rows, independent of the spacing, which not promoted changes in the grass content fiber. There were not significant different among spacings or rows and between rows to N and P nutrients content in forage, but the Ca, K and Mn content were highest under rows.
Forage quality; consortium; spacing; sylvopastoral system
