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看麦娘是麦田主要恶性杂草,发生面积大,危害重,一般田块减产一成左右,危害重的减收3～4成。近年来,大面积推广使用绿麦隆防除,防效不稳定。83年秋播对麦田看麦娘进行化学防除技术改进试验,探索麦田看麦娘的有效防除方法。现将试验结果整理如下: 一、试验设计试验在刁庄乡农场选择稻茬免耕麦田进行,小麦品种为杨麦4号,11月17日播种和用药,共六个处理。重复三次。小区面积0.2亩。
Anemarrhena obscurus is the main malignant weed in wheat fields, with large area and heavy damage. Generally, about 10% of the yield is reduced in fields and the damage is reduced by 3-4%. In recent years, large-scale promotion and use of chlorothalon control, prevention and control instability. In the autumn of 1983, we carried out experiments on improving chemical control technology in wheat field and explored the effective control methods of wheat in field. Now the test results are summarized as follows: First, the experimental design test Diao Zhuang Township farms choose rice tillage tillage wheat field, wheat varieties Yangmai 4, November 17 sowing and medication, a total of six treatment. repeat three times. Residential area of 0.2 acres.