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根据十年来(1972—1981)的试验结果,先后筛选出二二乳剂,棉隆可湿粉、农用氨水、二溴乙烷、二溴氯丙烷,粗二二乳剂、1,3一二氯丙烯、氯化苦乳剂等八种农药,均可用作铲除棉花枯、黄萎病零星病株根围土壤中的病原菌,各地可因地制宜加以选用。使用方法,在病点上先拔除病株,拾净落在附近地面的病残体,并将周围受病残体污染的表土一薄层收集到病点上。然后在病点四周处理面积范围内,用外围无病土筑一小土埂。最后将药液(或药粉)溶于定量的水加以稀释,灌入士埂内。如土质过粘不易渗水,可先打几个二尺多深的孔眼助渗。棉田封垅后病点不易处理,可先拔除病株,标记病点,并将病点培土封闭,待拔棉柴后处理。
According to the test results of the past ten years (1972-1981), two or two emulsions, cotton powder, agricultural ammonia, dibromoethane, dibromochloropropane, crude 二 二 乳剂, 1,3-dichloropropylene , Chlorpyrifos and other eight kinds of pesticides, can be used for the eradication of cotton withered, Verticillium wilt sporadic rhizosphere soil pathogens, can be selected according to local conditions. Use method, first remove diseased plants in the disease point, pick up the net fell on the ground near the sick and disabled, and around the body contaminated by a thin layer of dirt collected on the sick spots. Then in the disease area around the area of ?? treatment, with a peripheral disease-free soil to build a small soil 埂. Finally, the solution (or powder) dissolved in a quantitative amount of water to be diluted into the Shirai within. If the soil is too sticky and not easy to seep, can play a few two feet deep hole seepage infiltration. After the closure of cotton paddy disease is not easy to handle, you can first remove the diseased, mark the disease, and the disease point soil closed, to be removed after the treatment of cottonwood.