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浙西南山区垄畦免耕直播早稻病虫草害发生特点的系统调查结果:苗期以稻象甲、稻蓟马、蚜虫为主,发生为害重于移栽稻;与翻耕移栽稻比稻飞虱数量减少10.6%,蜘蛛增加了12.2%,为害减轻;纹枯病发病程度明显轻于移栽稻;草害重于移栽稻。穗期用40%虱病净50ml/667m2,兼治纹枯病、稻瘟病和稻飞虱效果良好,保产作用明显。
Systematic investigation on pest and disease occurrence characteristics of no-tillage direct-seeded early rice in mountainous area in southwestern Zhejiang Province: The results showed that the main occurrence of pests and weeds was in the seedling stage, which was more serious than that of transplanting rice; The number of planthoppers decreased by 10.6%, the spider increased by 12.2%, the damage was reduced; the incidence of sheath blight was significantly lower than that of transplanted rice; the weight of grass was heavier than that of transplanted rice. Spike with 40% of the net louse disease 50ml / 667m2, and the sheath sheath blight disease, rice blast and planthopper good effect, the obvious effect of production.