手动低容量喷雾是近几年来推广的农药喷施技术,1984年我县大面积应用于粮棉病虫害的防治,收到良好效果。现将防除春季麦田草害的试验结果整理如下: 供试品种为扬麦3号、长势良好。3月23日每亩用20％2甲4氯水剂和25％苯达松水剂各2两混配防除草害。田间草相以猪殃殃为主,多度75.7％,次为大巢菜,多度13.5％,牛繁缕多度10.8％。小区面积0.1亩,重复三次。各小区定点2尺~2系统观察记载杂草变化,结果(见表1)表明,无论0.7mm或1.0mm孔径喷片喷雾防除草害,在每亩用水量30～40 Manual low volume spray is the pesticide spraying technology promoted in recent years. In 1984, a large area of ​​our county was used for the prevention and control of grain and cotton pests and diseases and received good results. Now the control of spring wheat field grass damage test results are summarized as follows: The test varieties for the wheat on the 3rd, good growth. March 23 per acre with 20% 2 A 4 chlorinated water and 25% BENTON agent 2 each mixed with weed control. In the field, the gramineae was dominated by Galium apis, with a degree of 75.7%, followed by a large vetch, with 13.5% excess and 10.8% excess calf. Community area of ​​0.1 acres, repeated three times. The plot fixed point 2 feet ~ 2 systematic observation records weeds changes, the results (see Table 1) show that, regardless of 0.7mm or 1.0mm aperture spray spray weed control damage, water consumption per mu 30 ~ 40