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我县棉田面积共20.3万亩,绝大部分是连作棉田,稻棉能轮作换茬的面积仅3.5万多亩,占棉田面积的17.2％。 1963年,我县发现棉花枯萎病,由于当时对这一病害的严重性认识不足,控制不严,以致病菌不断扩散,危害不断加重。1965年,全县发病120多亩,1972年扩大到6.45万亩,1975年发展到17.66万亩。1976年发病面积虽达18.89万亩,但由于我们学习外地先进经验,进行了以种植抗病品种为主的综合防治,种植了6万多亩抗病棉,大力改造重病田,病情显著减轻,收到了良好的效果。
Our county has a total area of 203,000 mu of cotton fields, most of which are continuous cotton fields. Only 35,000 mu of crop rotation can be cropped, accounting for 17.2% of the total cotton area. In 1963, in our county, cotton blight was found. Because at that time, the seriousness of the disease was not well understood and the control was not strict so that the bacteria spread continuously and the harm was aggravated. In 1965, the county incidence of 120 mu, expanded to 6.45 million mu in 1972, to 176,600 mu in 1975. Although the disease area in 1976 reached 188900 mu, due to our advanced experience in the field, we conducted comprehensive prevention and control with the cultivation of disease-resistant varieties, planted more than 60,000 mu of disease-resistant cotton and vigorously transformed seriously ill plants, and significantly reduced the disease. Received good results.