Cover crop management in the weed control and productive performance in corn

Pedro Valério Dutra de Moraes, Dirceu Agostinetto, Luiz Eduardo Panozzo, Claudia Oliveira, Gerson Kleinick Vignolo, Catarine Markus

Abstract


 

The objective of the study was evaluate the allelopathy of cover species, associated to management practices and use of nicosulfuron herbicide on the productive performance of corn. The experimental design consisted of complete randomized block with four replications. The treatments were: cover species, cover management and application or not of post-emergence herbicide. The variables evaluated were: number of weeds, number of rows kernels, number of kernels rows, number of kernels ear and grain yield of corn. Lolium multiflorum, reduced the number of emerged weeds and provides the best results in productive performance. The management simulated grazing, does not favor the yield of corn. The application of nicosulfuron in post-emergence, along with the allelopathic activity increases the productive performance of corn, regardless of cover crop or soil management.


Keywords


Allelopathy; Raphanus sativus; Lolium multiflorum; Trifolium vesiculosum.



DOI: http://dx.doi.org/10.5433/1679-0359.2013v34n2p497

Semina: Ciênc. Agrár.
Londrina - PR
E-ISSN 1679-0359
DOI: 10.5433/1679-0359
E-mail: semina.agrarias@uel.br
Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial 4.0 Internacional