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首页> 外文期刊>Weed technology >Bromoxynil, Prometryn, Pyrithiobac, and MSMA Weed Management Systems for Bromoxynil-Resistant Cotton (Gossypium hirsutum)
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Bromoxynil, Prometryn, Pyrithiobac, and MSMA Weed Management Systems for Bromoxynil-Resistant Cotton (Gossypium hirsutum)

机译：Bromoxynil抗性棉（陆地棉）的Bromoxynil，Prometryn，Pyrithiobac和MSMA杂草管理系统

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Field studies were conducted at two locations in North Carolina in 1999 and 2000 to evaluate weed and bromoxynil-resistant cotton response to bromoxynil, pyrithiobac, and MSMA applied early postemergence (EPOST), alone or mixtures in all combinations (two way and three way), and to prometryn plus MSMA applied late postemergence directed (LAYBY). Trifluralin pre-plant incorporated followed by fluometuron preemergence controlled common lambsquarters, eclipta, and smooth pigweed at least 90%. These herbicides also provided greater than 90% common ragweed control at two locations but only 65% control at a third location. Pyrithiobac and pyrithiobac plus MSMA EPOST increased sicklepod control more than did bromoxynil or bromoxynil plus MSMA EPOST. Bromoxynil and pyrithiobac were more effective for sicklepod control when applied in mixture with MSMA. Bromoxynil plus pyrithiobac EPOST or with MSMA controlled (≥ 90%) common lambsquarters, common ragweed, entireleaf morningglory, prickly sida, and smooth pigweed early season. But the LAYBY treatment of prometryn plus MSMA frequently improved late-season control of entireleaf morningglory, large crabgrass, prickly sida, and sicklepod. A tank mixture of MSMA plus bromoxynil or pyrithiobac and the three-component tank mixture (bromoyxnil, MSMA, plus pyrithiobac) provided a broader weed control spectrum than did either bromoxynil or pyrithiobac alone. Cotton lint yields were increased with all postemergence systems, and the LAYBY treatment of prometryn plus MSMA increased cotton yields in 13 out of 16 comparisons. High cotton yields were indicative of high levels of weed control.
机译：分别于1999年和2000年在北卡罗来纳州的两个地点进行了田间研究，以评估棉花对溴苯腈，吡硫杆菌和MSMA的抗除草和抗溴苯甲醛作用，单独或以所有组合的混合物（两用和三用）混合使用，并且对Prometryn加MSMA进行后期出苗后指导（LAYBY）。掺入氟乐灵前植物，然后用氟乐土仑出苗前控制常见的羊羔，食道和光滑的杂草至少90％。这些除草剂还在两个位置提供了超过90％的普通豚草防治效果，但在第三位置提供了仅65％的防治效果。比起溴苯腈或溴苯甲腈加MSMA EPOST，吡硫唑和吡硫唑加MSMA EPOST增强了对镰刀菌的控制。当与MSMA混合使用时，溴苯腈和吡硫杆菌对镰状足病的控制更为有效。溴苯腈加吡硫杆菌EPOST或MSMA控制（≥90％）的普通羊羔，普通的豚草，全叶牵牛花，多刺的sida和早期的平滑杂草。但是，LAYER预防性治疗前用Promethn和MSMA经常能改善整个叶晨光，大型蟹草，多刺的sida和镰刀类的后期控制。 MSMA加溴苯腈或吡硫杆菌的罐混物和三组分罐混物（溴嘧啶，MSMA加吡硫杆菌）提供的杂草控制谱比单独使用溴苯腈或吡硫杆菌的杂草控制谱要广。在所有出苗后系统中，棉绒的单产都增加了，在16种比较中，有13种的LAYBY处理的prometricn和MSMA提高了棉花的单产。棉花单产高表明杂草控制水平高。

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