论文部分内容阅读
小麦全蚀病为国內植物检疫对象。据报导,国外发生很普遍,国內有四川、云南、山东、江苏、浙江等省发生。该病病情蔓延速度较快,一般从麦田零星发生至成片死亡,受病地块,轻者减产一、二成,重者在一半以上,甚重绝产。如山东省福山县芝阳大队,1969年发病面积占小麦播种面积的5%,减产小麦一万余斤,为小麦总产量的3.5%;1970—1971年两年病情加重,发病面积增至20%,減产小麦均达四万余斤,分別为当年小
The eclipse of wheat is the target of domestic phytosanitary. It is reported that the occurrence of foreign countries is very common, with the occurrence of Sichuan, Yunnan, Shandong, Jiangsu and Zhejiang provinces. The disease spread rapidly, generally sporadic occurrence from the wheat fields into a piece of death, the affected area, the light reduction of one or two percent, more than half of those who seriously, very much no production. Such as the Fushan County, Shandong Province Cheyenne Battalion, the incidence of disease in 1969 accounted for 5% of wheat sown area, wheat yield more than 10,000 kilograms, 3.5% of the total wheat output; 1970-1971 two years aggravated, the incidence increased to 20 %, Cut wheat output reached more than 40,000 pounds, respectively, the year was small