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首页> 外文期刊>Weed Technology: A journal of the Weed Science Society of America >Efficacy of Propoxycarbazone-sodium for Cheat (Bromus secalinus) Control in Winter Wheat and Carryover on Double-Cropped Grain Sorghum
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Efficacy of Propoxycarbazone-sodium for Cheat (Bromus secalinus) Control in Winter Wheat and Carryover on Double-Cropped Grain Sorghum

机译：丙氧卡波zone钠对冬小麦作弊（Bromus secalinus）的控制作用及对双季谷物高粱的残留

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Southern Great plains wheat growers typically apply either sulfosulfuron or propoxycarbazone-sodium for selective control of cheat. Although astute growers apply herbicides early in the growing season, herbicide application is often delayed until mid-winter or later. The effects of application timing of propoxycarbazone-sodium on cheat efficacy and oil injury to the following grain sorghum crop have not been documented. Application of each herbicide at 17 intervals throughout the growing season indicated that cheat control with propoxycarbazone-sodium was greater than or equal to 90% even when application was delayed for several months after seeding. In contrast, cheat control with sulfosulfuron was variable when application was delayed more than 6 wk after wheat was seeded. Delaying sulfosulfuron application decreased wheat yield. Grain sorghum was not affected by propoxycarbazone-sodium residues regardless of application timing to wheat. Conversely, grain sorghum was severely injured by sulfosulfuron residues regardless of herbicide application timing.
机译：大平原南部的小麦种植者通常使用硫磺隆或丙氧基卡巴a钠来选择性地控制作弊行为。尽管机敏的种植者在生长期早期使用除草剂，但除草剂的施用通常会推迟到冬季中旬或更晚。尚未记录丙氧基卡巴zone钠的施药时间对后代高粱作物的作弊功效和油害的影响。在整个生长季节以17个间隔施用每种除草剂表明，即使在播种后延迟数月施用，丙氧卡巴zone钠的作弊控制仍大于或等于90％。相反，当小麦播种后施用延迟超过6周时，磺胺磺隆的作弊控制是可变的。硫磺隆的延迟施用降低了小麦的产量。不论施于小麦的时机如何，高粱均不受丙氧基卡巴zone钠残留的影响。相反，不论施用除草剂的时间如何，高粱都会受到磺胺磺隆残留的严重伤害。

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