近几年来,我县早稻稻瘟病发生面广,危害重,对产量影响较大,为了掌握早稻稻瘟病发生发展规律,控制其危害,特进行了地膜育秧、露天育秧与早稻稻瘟病发生发展关系的试验,现将结果整理如下: 一试验方法试验面积1.2亩,品种为先锋一号。设地膜覆盖育秧和露天育秧两种处理,秧田期重复一次;大田期重复三次。每小区面积0.2 In recent years, my county rice blast occurred in a wide range, endanger the heavy, affecting the yield greater, in order to master the occurrence and development of early rice blast law and control their harm, special mulching, open-air seedling and early rice blast development Of the test, now the results are organized as follows: a test method test area of ​​1.2 acres, the variety of Pioneer. Set mulching and open-field planting seedlings cover two kinds of seedling treatment, seedling period repeated; field period repeated three times. Each plot area of ​​0.2