论文部分内容阅读
通过对水稻免耕与常耕栽培对比实验,结果表明,免耕抛秧水稻的产量性状优于对照(常耕移栽)和其它处理,产量比对照高3.95%~11.57%,处理4与处理1之间差异达到5%显著水平,其它处理间差异不显著。处理4水稻的有效穗数多于其它处理,叶面积指数和干物质积累均大于其它处理。在分蘖盛期、拔节期、孕穗期和黄熟期,免耕处理的根系活力比常耕处理分别强28.1%、7.4%、28.3%和34.9%。常耕处理的二化螟和稻纵卷叶螟比免耕处理分别多16%和94%。
The results showed that the yield traits of no-tillage and throwing rice were better than the control (no-tillage transplanting) and other treatments, the yield was 3.95% ~ 11.57% higher than that of the control, and the treatment 4 and the treatment 1 difference reached a significant level of 5%, no significant difference between other treatments. Treatment 4 The effective panicles of rice were more than those of other treatments, and the leaf area index and dry matter accumulation were all greater than those of other treatments. At tillering stage, jointing stage, booting stage and yellow ripening stage, the root activity of no-tillage treatment was 28.1%, 7.4%, 28.3% and 34.9% higher than that of non-tillage treatment respectively. Chilo suppressalis and Cnaphalocrocis medinalis were 16% and 94% more than non-tillage treatments respectively.