6种栽培方式对水稻主要病虫草害发生及其产量的影响(英文)

对机耕人插、机耕机插、机耕抛秧、牛耕人插、牛耕机插、牛耕抛秧6种栽培方式下水稻主要病虫草害的发生规律进行了研究。结果表明,6种栽培方式对水稻纹枯病、二代稻飞虱、二化螟和稻曲病的发生影响较小;对稻纵卷叶螟、三、四代稻飞虱及田间杂草发生影响较大;不同栽培方式间产量有一定的差异,机耕机插产量最高,牛耕抛秧产量最低。

Effects of Six Cultivation Patterns on Occurrence of Major Diseases and Pests and Yield of Rice

The occurrence rules of major diseases and pests in rice were investigat-ed under six cultivation patterns, i.e., mechanical plowing-artificial transplanting, me-chanical plowing-mechanical transplanting, mechanical plowing-scattered transplanting, cattle plowing-artificial transplanting, cattle plowing-mechanical transplanting and cattle plowing-scattered transplanting. The results showed that the six cultivation patterns showed smal effects on the occurrence of rice sheath blight, second-generation rice planthopper, rice stem borer and rice false smut, but showed great effects on the occurrence of rice leaf folder, third-and fourth-generation rice planthopper and weeds; there were certain differences in the rice yield among different cultivation patterns, and the rice yield under the pattern of mechanical plowing-mechanical transplanting ranked first, while that under the pattern of cattle plowing-scattered transplanting ranked last.