Eficácia e seletividade de herbicidas em cultivares de feijão-caupi

Revista Brasileira de Herbicidas

Francisco Rodrigues Freire Filho¹  Hélida Campos de Mesquita²  Márcio Gledson Oliveira da Silva³  Ana Paula Medeiros dos Santos Rodrigues⁴  Jorge Luiz Xavier Lins Cunha⁵  Francisco Cláudio Lopes de Freitas⁶ 

[1] Empresa Brasileira de Pesquisa Agropecuária;Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte. Campus Apodi.;Syngenta;Universidade Federal Rural do Semi-Árido;Universidade Federal de Alagoas;Universidade Federal de Viçosa

关键词: controle químico;    plantas daninhas;    Vigna unguiculata (L.) Walp;   

DOI  :  10.7824/rbh.v16i1.505

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 】

Despite the extensive cultivated area in Brazil and the growing demand for information about weed control, few studies are found in literature reporting the efficacy and selectivity of herbicides for cowpea ( Vigna unguiculata ). View of this, this work was developed in order to evaluate the selectivity and efficacy of herbicides for cultivars of cowpea. The experiment was conducted in a randomized block design in factorial scheme 2 x 13, with two cowpea cultivars (BRS Xiquexique and BRS Guariba) and 13 strategies for weed management (1 S-metolachlor, 2 metribuzin + fluazifop, 3 imazamox + fluazifop, 4 bentazon + fluazifop, 5 imazamox + bentazon + fluazifop, 6 imazetapyr + fluazifop, 7 fomesafen + fluazifop, 8 lactofen + fluazifop, 9 chlorimuron + fluazifop, 10 chlorimuron + lactofen + fluazifop, 11 fluazifop + capina, 12 weeded control and 13 control without weeding). It was verified that there is no difference in the selectivity of the evaluated herbicides for the cultivars BRS Guariba and BRS Xiquexique. The herbicides 1; 3; 4; 5 and 6 are selective for the cultivation of cowpea; The mixtures of herbicides 7 and 8 caused severe intoxication, prolonging the cycle and reduce the productivity of cowpea; Herbicides 2; 9; 10 are not selective for the cowpea; The mixtures of herbicides 5 and 6 were effective in the control of weed species present in the area with yield equivalent to the hand weeded; The effectiveness of herbicides or mixtures of herbicides for weed control depends on the weed community.

【 授权许可】

CC BY