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通过对棉花的黄萎、枯萎、立枯丝核三种病原菌的混合液进行杀菌剂、土壤有益微生物的抑菌圈试验，并对各种处理的种子进行接菌抗病试验。农药抑菌试验结果表明，五种农药均对棉花致病菌有不同程度的抑制作用。其中，敌克松的抑制作用最强，其次是百菌清和杀毒矾。土壤有益微生物的抑菌结果表明，８１９５６Ａ的抑菌效果最好，其它各有益菌体均具有不同程度的抑菌作用。接菌抗病试验结果有两种情况：常温下，各种处理均对病原菌有抑制作用，减少棉苗发病率以Ａ６１种８１９５６Ａ最高，分别比对照少２．５％和２．３％；齐苗后移入高温下，防病效果比较好的是Ａ６１和保苗剂２号。８１９５６Ａ的防病效果好于敌克松拌种和对照，发病率比对照减少４．６％。
Bacteriostats and bacteriostasis test of soil beneficial microorganisms were carried out on the mixed liquor of three pathogenic bacteria of Verticillium dahliae, Withered and Rhizoctonia solani, and the inoculated and disease-resistant test of all kinds of seeds were carried out. Bacteriostasis test results show that the five kinds of pesticides have different degrees of inhibition of cotton pathogens. Among them, the most inhibitory effect of Nixon, followed by chlorothalonil and anti-virus alum. The results of antibacterial test showed that 81956A had the best bacteriostatic activity and all other beneficial bacteriolytes had different antibacterial activities. Inoculation and disease resistance test results in two cases: at room temperature, all kinds of treatment are inhibited by pathogens, reducing the incidence of cotton seedlings to A61 81956A the highest, respectively 2.5% less than the control and 2.3%; Miao into the high temperature, disease prevention is better A61 and seedling agent on the 2nd. The disease control effect of 81956A is better than that of Nongsong seed dressing and control, with the incidence of 4.6% less than the control.