ÉPOCAS DE DESSECAÇÃO DE COBERTURAS DE INVERNO EM RELAÇÃO À SEMEADURA DO MILHO: INFESTAÇÃO DE PLANTAS DANINHAS E PRODUTIVIDADE DA CULTURA
Author(s) -
Alvadi Antônio Balbinot,
Aníbal de Moraes,
Rogério Luiz Backes,
Adriano Martinho de Souza
Publication year - 2007
Publication title -
scientia agraria
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.206
H-Index - 10
eISSN - 1983-2443
pISSN - 1519-1125
DOI - 10.5380/rsa.v8i2.8374
Subject(s) - sowing , horticulture , agronomy , biology
Practices that facility the crop establishment are important in weed management, consequently reducing herbicide use. A small time among plant cover desiccation and sowing maize is one of the management practices that can reduce weed infestation due to weed establishment retardation. The aim of this work was to evaluate the effect of the cover crop desiccation time in relation to the maize sowing on the weed infestation and maize yield. An experiment was carried out in Canoinhas, SC, Brazil in the season 2004/05. Ryegrass in a single crop and an intercropping system (ryegrass + black oat + rye + common vetch + oilseed radish) were desiccated in five times: 30, 20, 10, 5 e 1 day before the maize sowing, in a factorial scheme 2 x 5. The cover crop management near to the maize sowing reduced the density and mass accumulation of weeds and improved the maize grain yield.
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