Influence of Row Spacing and Residual Herbicides on Weed Control in Glufosinate-Resistant Soybean (Glycine max)1
| Autor: | David R. Shaw, Charles E. Snipes, Justin L. Norris |
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| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | Weed Technology. 16:319-325 |
| ISSN: | 1550-2740 0890-037X |
| Popis: | Field experiments were conducted in 1998 and 1999 at two locations in Mississippi to determine weed control efficacy of postemergence soybean herbicides alone or following pendimethalin + imazaquin preemergence in glufosinate-tolerant soybean planted in 38- or 76-cm rows. Glufosinate applications controlled pitted morningglory better than conventional herbicide treatments, regardless of row spacing. Pendimethalin + imazaquin did not increase the efficacy of glufosinate on pitted morningglory. Pitted morningglory control was increased in narrow rows when compared to wide rows with all treatments. Sicklepod control ranged from 90 to 100% in narrow rows with glufosinate, regardless of rate. Residual herbicides alone controlled sicklepod 54%, regardless of row spacing. With grass species, two applications of 420 g ai/ha glufosinate controlled weeds 82 to 100%. Residual herbicides followed by 420 g/ha glufosinate controlled grass species 80% or more, regardless of row spacing. Hemp sesbania control ranged from... |
| Databáze: | OpenAIRE |
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