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禾草灵(diclofop-methyl)是防除野燕麦的优良药剂,其药效发挥受多种因素制约,其中施药时期十分重要.禾草灵是以酯和酸的形式破坏细胞超微构造,从而抑制野燕麦的生长.本试验旨在为大田施药提供依据.一、材料和方法试验于1986年在八一农学院温室进行.供试药剂为36%禾草灵乳油(西德赫斯特公司产),供试野燕麦为普通野燕麦(Avenafafua L.),试验野燕麦分两组播于盆中,一组用于测定不同叶龄野燕麦体内含糖量及施用禾草灵对植株高度的影响;另一组用于测定2,3,4,5叶龄施药后野燕麦的症状表现及死亡率,每个叶龄组施药3盆,以不施药为对照,重复3次.药剂处理当天,先取样测定含糖量,喷药后每盆随机抽取野燕
Diclofop-methyl is an excellent drug for controlling wild oats, and its efficacy is controlled by a number of factors, of which the application period is very important. Gramflunomide is the destruction of cellular ultrastructure by esters and acids Inhibit the growth of wild oats.The purpose of this experiment is to provide the basis for field application.Materials and Methods The experiment was carried out in the Greenhouse of Bayi Agricultural College in 1986. The test agent was 36% Company production), the experimental wild oat is common wild oats (Avenafafua L.), the test wild oat two groups broadcast in the pot, a group for the determination of different leaf age wild oats in vivo sugar content and the application of grass grass on the plant Height; the other group was used to measure the symptoms and mortality of wild oats after 2,3,4,5 leaf application, and each leaf age group was given 3 pots, with no application as control, repeated 3 Times.Pharmaceutical processing the same day, the first sampling determination of sugar content, each wild pot after spraying wild Yan