干旱区生态环境知识资源中心(Arid): Periods of weed interference in cowpea crop in the semi-arid of Minas Gerais, Brazil

Arid

DOI	10.5039/agraria.v15i2a6749
	Periods of weed interference in cowpea crop in the semi-arid of Minas Gerais, Brazil
	Lacerda, Marlon Lopes; Aspiazu, Ignacio; de Carvalho, Abner Jose; da Silva, Alexandre Ferreira; Ferreira, Evander Alves; de Souza, Andrey Antunes; de Campos, Marcos Lopes; Barbosa Brito, Cleiton Fernando
通讯作者	Lacerda, ML
来源期刊	REVISTA BRASILEIRA DE CIENCIAS AGRARIAS-AGRARIA
ISSN	1981-1160
EISSN	1981-0997
出版年	2020
卷号	15 期号:2
英文摘要	Weed interference is one of the main limiting factors in the cowpea yield. In this sense, we aimed to determine the periods of weed interference in the cowpea crop in the semi-arid region of Minas Gerais. The treatments were arranged in a 2 x 10 factorial scheme, with two factors: coexistence and control of weed and ten periods: 0, 7, 14, 21, 28, 35, 42, 49, 56 and 63 days after emergence (DAE) subjected to control and coexistence. The evaluated characteristics were dry weight of weeds and the cowpea, weight of 100 grains and yield, which was fitted to the exponential model and the periods of interference of the weed community were determined. The period before interference (PBI) occurred up to 20 DAE, with weed control having to be performed up to 32 DAE. The critical period for weed control (CPWC) was from 21 to 32 days after emergence of the crop. The cowpea bean yield reduced 73.5% with the weed interactions during the whole cycle, under conditions of the semi-arid of Minas Gerais.
英文关键词	BRS Itaim competition Vigna unguiculata
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	ESCI
WOS记录号	WOS:000532654600005
WOS关键词	VIGNA-UNGUICULATA ; PERFORMANCE ; COMPETITION ; GROWTH ; NORTH ; YIELD ; WALP
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334362
作者单位	[Lacerda, Marlon Lopes; Aspiazu, Ignacio; de Carvalho, Abner Jose; de Souza, Andrey Antunes; de Campos, Marcos Lopes; Barbosa Brito, Cleiton Fernando] Univ Estadual Montes Claros, Montes Claros, MG, Brazil; [da Silva, Alexandre Ferreira] Embrapa Milho & Sorgo, Sete Lagoas, MG, Brazil; [Ferreira, Evander Alves] Univ Fed Minas Gerais, Inst Ciencias Agr, Montes Claros, MG, Brazil
推荐引用方式 GB/T 7714	Lacerda, Marlon Lopes,Aspiazu, Ignacio,de Carvalho, Abner Jose,et al. Periods of weed interference in cowpea crop in the semi-arid of Minas Gerais, Brazil[J],2020,15(2).
APA	Lacerda, Marlon Lopes.,Aspiazu, Ignacio.,de Carvalho, Abner Jose.,da Silva, Alexandre Ferreira.,Ferreira, Evander Alves.,...&Barbosa Brito, Cleiton Fernando.(2020).Periods of weed interference in cowpea crop in the semi-arid of Minas Gerais, Brazil.REVISTA BRASILEIRA DE CIENCIAS AGRARIAS-AGRARIA,15(2).
MLA	Lacerda, Marlon Lopes,et al."Periods of weed interference in cowpea crop in the semi-arid of Minas Gerais, Brazil".REVISTA BRASILEIRA DE CIENCIAS AGRARIAS-AGRARIA 15.2(2020).