Suppression of weeds by annual leguminous plants under Amazon agroecological system

Planta Daninha

Mendonça, V.C.M.¹  Moura, E.G.¹  Araujo, J.C.¹  Universidade Estadual do Maranhão, São Luís¹  Aguiar, A.C.F.¹ 

关键词: alley cropping;    cover crop;    population dynamics.;   

DOI  :  10.1590/S0100-83582007000200005

学科分类：农业科学（综合）

来源: Sociedade Brasileira da Ciencia das Plantas Daninhas (S B C P D) / Brazilian Society of Herb Science

【 摘 要 】

This study evaluated the efficiency of cover legumes in suppressing weed. A field experiment was arranged in a randomized block design with five replications in an alley cropping system, using Clitoria fairchildiana and four cover species, Mucuna aterrima, Cajanus cajan, Canavalia ensiformes and Calopogonium mucunoides. Weed frequency, density, diversity and biomass were evaluated with 42 weed species being identified. The most frequent and presenting the highest density and dominance were Leptochoa virgata, Panicum laxum and Sida sp. No significant differences were detected in density, number of species, diversity and biomass among the four legumes, nor between them and the control.

【 授权许可】

Unknown