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棉花黄萎病的土壤熏蒸防治法防治研究是在爱字4—42棉田内进行的,每英亩施用45—55%甲基溴氯化苦325磅。苗期选择叶柄每月进行培养,以便检查其上是否有病菌存在。结果表明,早期侵染能使产量大大降低。第一年的防洽效果比较显著,但由于熏蒸的缘故,早期生长有矮化现象,过此时期植株即开始旺盛生长,但未能达到成熟期。第二年熏蒸区内植株的拥挤从牛虽会给予产量以不
Soil fumigation prevention and control of cotton Verticillium wilt was conducted in Cotton Belt 4-42 cotton fields with 325-55% methyl chloropicrin applied per acre. Petiole seedling selection monthly culture, in order to check whether there is bacteria on it. The results show that early infection can greatly reduce the yield. The first year of the anti-collision effect is more significant, but due to fumigation, the early growth dwarf phenomenon, after which the plants began to flourish, but failed to reach maturity. The next year the flocking of plants in the fumigatus from the cattle will give the yield to not