2008
DOI: 10.1590/s0100-83582008000400009
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Períodos de interferência de Brachiaria plantaginea na cultura do milho na região Sul do Rio Grande do Sul

Abstract: RESUMO -Os períodos de convivência das espécies daninhas têm grande influência no crescimento das plantas e na produtividade das culturas. Desse modo, objetivou-se com este trabalho determinar os períodos de competição, anterior à interferência (PAI), o crítico de prevenção à interferência (PCPI) e o período total de prevenção da interferência (PTPI) de B. plantaginea sobre a cultura do milho na Região Sul do Rio Grande do Sul. Adotou-se o delineamento experimental de blocos casualizados, no sistema de cultivo… Show more

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Cited by 18 publications
(24 citation statements)
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“…Similar results have previously been reported (ZAGONEL et al, 2000;GALON et al, 2008). The 100-grain weight increased with increase in the period of coexistence of the crop with the weed plants; this might be a plant strategy to guarantee its reproduction under stress conditions.…”
Section: Resultssupporting
confidence: 89%
“…Similar results have previously been reported (ZAGONEL et al, 2000;GALON et al, 2008). The 100-grain weight increased with increase in the period of coexistence of the crop with the weed plants; this might be a plant strategy to guarantee its reproduction under stress conditions.…”
Section: Resultssupporting
confidence: 89%
“…A interferência negativa exercida pela braquiária, na fase vegetativa do milho, pode, entre outras alterações, diminuir a altura de inserção da espiga (Fancelli & Dourado Neto, 2000). Resultados semelhantes foram observados por Galon et al (2008), na ausência de controle da Brachiaria plantaginea no cultivo de milho.…”
Section: Resultsunclassified
“…It is estimated that yield losses in maize as a function of competition with weeds are in the order of 13% (Carvalho et al, 2007). In many situations, where no control measures are adopted, this reduction can reach 85% (Carvalho et al, 2007) or more than 90% (Merotto Jr. et al, 1997;Galon et al, 2008). the productivity of these crops (Agostinetto et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…The period of cohabitation of the weed crop can be divided into: a) pre-interference period (PIP), period from the sowing, the crop can live with the weeds without reducing the productivity; b) total period of weed control (TPWC), that from the emergence of the crop, in which weeds must be controlled so that the crop exerts its maximum productive potential; c) critical period of weed control (CPWC), corresponds to the difference between the PIP and the TPWC, when the crop should be effectively weed-free. The knowledge of these periods helps to carry out the necessary managements for the control of weeds in maize (Pitelli & Durigan, 1984;Galon et al, 2008).…”
Section: Introductionmentioning
confidence: 99%