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一、病害方面(一)试验方法:本试验材料是根据本省及其它各地区土药防治有效经验以及苏联植物杀菌素资料的启示,就地采集50余种植物,并向药材公司征购50余种,共计百余种,其中提出有关材料80余种,按5%粉剂作琼胶平板及10%浸或煮汁(新鲜材料浸12小时左右,或煮30—40分钟作1%琼胶平板),以不同浓度,针对水稻稻热病,棉花立枯病、角斑病、
First, the disease aspects (A) test method: The test material is based on the province and other regions of soil and chemical control of effective experience and the Soviet Union phytoncide data enlightenment, the local collection of more than 50 kinds of plants, herbs companies to purchase more than 50 species , A total of more than 100 species, of which more than 80 kinds of materials proposed, according to 5% powder agar plates and 10% dip or boiled juice (fresh material soak for about 12 hours, or cook 30-40 minutes for 1% agar plate) With different concentrations, against rice fever, cotton blight, angular leaf spot,