20%环球通A、B型除草试验报告

杂草是农业生产的大敌,为筛选适宜于生产上使用的除草剂,作者以克无踪为对照药剂,对环球通(Paraquat)A、B两型不同剂量进行了比较试验。结果表明:环球通A、B两型对杂草均有良好的防除效果,每667m2用20%环球通200ml,药后6天防除效果可达97%以上;在差异较小的水平上,环球通A型除草效果略优于B型;环球通与克无踪同剂量处理相比,其对杂草的株防效和鲜重防效相当或略偏低,各处理都存在多年生杂草复活现象。试验者认为,环球通在生产上有进一步示范和推广应用价值。

A Report on Weeding Experiment with 20% Paraquat Type A and B

Weeds are a great enemy of agricultural production. To screen the herbicide applicable to production, the author conducts an comparasion experiment with Paraquat Type A & B, of different doses, by adopting benthiocarb as comparctive agent. The result indicates that both types are of good preventive weeding effect, which reaches over 97% 6 days later, with 20% Paraquat per 667 m~2. On the level of minor differences, Type A is slightly superior to Type B in the weeding effect. Compared with benthiocarb of the same dose, Paraquat is equivalent or slightly inferior in preventive effect of individual rank grass, and of weight of fresh grass. Reviving of perennial grass exists in all measures whatsoever. The experimentalist concludes that Paraquat is of more exemplary and promotive value in production.