首页> 外文期刊>Journal of Agriculture of the University of Puerto Rico >Weed management during and after rhizoma perennial peanut establishment.
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Weed management during and after rhizoma perennial peanut establishment.

机译:杂草管理在常年花生设施中和后生成。

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A field study was conducted to evaluate the effect of dimethenamid and imazethapyr followed by clethodim and bromoxynil, on rhizoma perennial peanut (Arachis glabrata) during and after establishment. There were no significant differences in any of the parameters measured among rhizoma perennial peanut accessions as a result of the effects of herbicides. Excellent grass control was obtained when dimethenamid (preemergence) at 1.68 and 3.36 kg ai/ha was applied during the first month as compared with the use of imazethapyr. At 26 weeks after herbicide application (WAH) excellent grass control was obtained in all herbicide treatments. At 52 WAH no differences were observed for broadleaf and grass density. No differences were detected for dry weight of rhizoma perennial peanut and weeds among herbicide treatments at the 26- and 52-WAH harvests. Plots receiving imazethapyr as an early postemergence (POE) had 44 g/m2 more dry weight of weeds than plots with dimethenamid at the lowest rate, but no differences were found among the other treatments. The lowest weight of rhizoma perennial peanut was with imazethapyr early POE, as compared with the three other herbicide treatments. No difference was observed with dimethenamid at either rate. After two years, density of broadleaves was the highest (55.6 plants per square meter) with imazethapyr applied early POE. Density of grasses was lower with imazethapyr preemergence and dimethenamid at a lower rate than with the other two herbicide treatments. Overall, taking into account all rates and dates of herbicide applications, the best weed control was obtained with the early application dates.
机译:进行了田间研究以评估二甲基酰胺和咪唑吡喃接着的作用,然后在建立期间和之后进行克里普胺和溴氧中的氯化物和Bromoxynil。由于除草剂的影响,Rhizoma多年生花生饲料中的任何参数都没有显着差异。在与使用咪唑普瓦的第一个月的施用时,在1.68和3.36kg Ai / Ha期间施加优异的草地控制。在除草剂应用(WAH)后26周,在所有除草剂处理中获得了优异的草地控制。在52 WAH下,对于阔叶和草密度没有观察到差异。在26-和52-WAH收获的除草剂治疗中,无菌常年花生和杂草的干重没有差异。接受咪唑普罗斯作为早期后药物(PoE)的地块具有44克/米 2 比以最低速率的含量的斑点更具干燥的杂草,但在其他治疗中没有发现差异。与其他三种除草剂治疗相比,常年花生的最低重量是胰岛素的早期Poe。在任一速率下,用二甲基酰胺观察到差异。经过两年的时间,阔叶物的密度是最高的(每平方米55.6株植物),咪唑普罗斯早期的Poe。咪唑吡吡氏术和二甲烷的密度低于其他两个除草剂治疗。总体而言,考虑到除草剂应用的所有费率和日期,使用早期申请日期获得了最佳杂草控制。

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