论文部分内容阅读
近几年来,玉米大斑病在我省普遍发生,并有日趋严重之势。据新金县夹河公社贫下中农反映,两年前在当地主要农家品种“二白”上,大斑病很少发生,1970年发生较多,1971年己相当严重。在个别品种上或个别地块上已造成毁灭性损失。所以,玉米大斑病已成为玉米生产中一个急待解决的问题。1971年我们在新金县夹河公社下纪沟生产队和当地贫下中农一起,对玉米大斑病的发生规律和防治措施进行了一些观察、试验。现初报如下:
In recent years, the maize leaf spot is common in our province, and there is an increasingly serious trend. According to the Xinjian County Jiahe commune under the poor middle peasants reflected, two years ago in the local major peasant breed “two white”, spotted seldom occurred in 1970 occurred more, in 1971 has been quite serious. On individual species or individual plots have caused destructive losses. Therefore, the maize leaf spot has become an urgent problem in corn production. In 1971, we conducted a series of observations and experiments on the occurrence rules and prevention and cure measures of maize leaf spot along with the lower Jiizong production team in Xihe Commune of Xinjin County. Now reported as follows: