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首页> 外文期刊>Weed Technology >Cultural Practices and Glyphosate Applications for Sicklepod (Senna obtusifolia) Control in Soybean (Glycine max)1
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Cultural Practices and Glyphosate Applications for Sicklepod (Senna obtusifolia) Control in Soybean (Glycine max)1

机译：大豆（Glycine max） 1 的水飞蓟（Senna obtusifolia）防治的栽培实践和草甘膦应用 1

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摘要

A study was conducted in 1995 and 1996 to determine the effect of soybean planting date, tillage level, and glyphosate application on sicklepod control and seed production. Soybean was planted in April, May, June, and July into conventional and no-till seedbeds. Herbicide programs evaluated were metribuzin plus chlorimuron preemergence (PRE) followed by (fb) chlorimuron postemergence (POST) (standard program [STD]), metribuzin plus chlorimuron PRE fb glyphosate POST as-needed, and glyphosate POST as-needed. Control was similar across planting dates in both years with slight variations due to weather. The July planting date had the lowest total sicklepod seed production over the 2-yr study. Sicklepod control was better in conventional tillage, but soybean yields were greater in no-till. Herbicide programs that included glyphosate provided greater sicklepod control, lower sicklepod seed production, and higher soybean yields than the STD. Use of glyphosate in combination with later planting dates, especially July, has the potential to prevent sicklepod seed accumulation in the soil while maintaining yields in a dryland soybean production system.
机译：1995年和1996年进行了一项研究，以确定大豆播种日期，耕作水平和草甘膦施用对镰刀菌控制和种子生产的影响。大豆分别于4月，5月，6月和7月种植在常规的免耕播种床上。评估的除草剂程序是美法津加氯嘧磺隆出苗前（PRE），然后是（fb）氯嘧磺隆出苗后（POST）（标准程序[STD]），美法津加氯嘧磺隆PRE fb的草甘膦POST和根据需要的草甘膦POST。两年的播种日期控制相似，但由于天气而略有变化。在2年研究中，7月播种日期的镰刀类种子总产量最低。在传统耕作条件下，镰刀类的控制效果更好，但免耕种植的大豆产量更高。与STD相比，包括草甘膦在内的除草剂程序可更好地控制镰刀菌，降低镰刀菌的种子产量，并提高大豆产量。草甘膦与较晚的播种日期（尤其是七月）配合使用，有可能防止镰刀类种子在土壤中积累，同时保持旱地大豆生产系统的单产。

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