RESUMOO presente trabalho foi condu zido cor o obje tivo de avaliar os possíveis efeit os da inter ferên cia, part icularmen te a alelo pátic a, da palhada de Brach iari a decu mbens (BRA DC ) ABSTRACT Interference of Brachiaria grass mulch on initial growth of EucalyptusThe aim of this work was to evaluate possible effects of Brachiaria decumbens (BRADC) mulching resulted from either glyphosate application (1440 g.a.e./ha) or hand weeded on E. grandis initial growth. The plots were 50 l containers infested or not by BRADC. The experimental treatments consisted of no control of BRADC up to 230 days after Eucalyptus transplanting (DAT): BRADC control (using glyphosate or hand weeded at 106 DAT): simulation of treatment BRADC control not infested by BRADC, and BRADC mulch, resulted from glyphosate application or hand weeded, transfered from an area infested by BRADC. At the end of the experiment (230 DAT) it was observed a significant reduction on eucalyptus plant high, stem diameter, leaf and branch number, and leaf area, in the treatment where BRADC was not controlled, when compared to the plants growing in containers not infested by BRADC that received BRADC mulch obtained from glyphosate or manual hoeing. Chemical
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