Title:	Cover crops in the off-season in the weed management at no-tillage area.
Authors:	ARAÚJO, F. C. de NASCENTE, A. S. GUIMARÃES, J. L. N. SOUSA, V. S. FREITAS, M. A. M. de SANTOS, F. L. de S.
Affiliation:	FERNANDO COUTO DE ARAÚJO, UNIVERSIDADE FEDERAL DE GOIÁS; ADRIANO STEPHAN NASCENTE, CNPAF; JULIANA LOURENÇO NUNES GUIMARÃES, INSTITUTO FEDERAL GOIANO, Urutaí-GO; VINICIUS SILVA SOUSA, UNIVERSIDADE FEDERAL DE GOIÁS; MARCO ANTONIO MOREIRA DE FREITAS, INSTITUTO FEDERAL GOIANO, Urutaí-GO; FENELON LOURENÇO DE SOUSA SANTOS, UNIVERSIDADE FEDERAL DE GOIÁS.
Date Issued:	2021
Citation:	Revista Caatinga, v. 34, n. 1, p. 50-57, jan./mar. 2021.
Description:	Cover crops can provide suppression of weeds and together with chemical control make the proper management of weeds in agricultural areas. The objective of this study was to evaluate the effect of cover crop cultivation during the off-season on weed development in a no-tillage area. The experimental design was in randomized blocks scheme with six treatments and four replications. The treatments were: fallow (control), millet (Pennisetum glaucum) + crotalaria (Crotalaria spectabilis + C. juncea + C. ochroleuca), millet + pigeon pea (Cajanus cajans), millet + Urochloa ruziziensis, millet + Urochloa ruziziensis + pigeon pea and millet + buckwheat (Fagopyrum esculentum. The evaluations were done at 30, 75 and 225 days after sowing of the cover crops (DAS). The main growth weed species in the area were Cenchrus echinathus, Euphorbia heterophylla and Digitaria insularis. Fallow treatment showed greater number of weed species with density of 184 plants m-2, 9.0 species and with 527.8 g m-2 of dry matter mass at 225 DAS. In all treatments verified reduction in the density and mass of weeds dry matter compared to the fallow, with average of 30 plants m-2, 5.8 species and 7.9 g m-2 at 225 DAS, respectively. The use of cover crops is an important strategy for weed control in agricultural areas.
Thesagro:	Planta de Cobertura Plantio Direto Controle Químico Controle Cultural
NAL Thesaurus:	Weeds Cultural control Sustainable development
Keywords:	Planta daninha Plantas infestantes Manejo integrado
ISSN:	0100-316X
DOI:	http://dx.doi.org/10.1590/1983-21252021v34n106rc
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPAF)