Article,

Time of Weed Removal with Glyphosate Affects Corn Growth and Yield Components

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Agron J, 98 (2): 349-353 (2006)
DOI: 10.2134/agronj2005.0078

Abstract

Growers need to be aware that corn (Zea mays L.) develops leaf area slowly and competes poorly with early emerging weeds in the northeastern USA when planning a total postemergence program in glyphosate-resistant corn. We applied glyphosate at early postemergence (EPOST), third to fourth leaf stage (V3-V4) of corn growth; mid-postemergence (MPOST), V5 to V6 stage; and late postemergence (LPOST), V7 to V8 stage, in New York in 2003 and 2004 to determine how initial glyphosate timing affects growth, development, yield, and yield components of corn. The EPOST treatment, which received glyphosate when weeds were 10 cm or less in height, and a wee…(more)

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