CAJ | 학술논문

通过2005-2007年连续3a定位试验,在双季稻田研究了免耕抛秧水稻的根系特性.结果表明:免耕抛秧水稻根系干重低于翻耕移栽稻,根系大部分分布在表层(0～5 cm土层)土壤.水稻单穴根系固持力表现为翻耕移栽＞翻耕抛秧＞免耕抛秧,且随着免耕年限的延长,这种趋势更明显.
통과2005-2007년련속3a정위시험,재쌍계도전연구료면경포앙수도적근계특성.결과표명:면경포앙수도근계간중저우번경이재도,근계대부분분포재표층(0～5 cm토층)토양.수도단혈근계고지력표현위번경이재＞번경포앙＞면경포앙,차수착면경년한적연장,저충추세경명현.
Three years of field experiments from 2005 to 2007 were conducted in double cropping rice fields to study the root characteristics of no-tillage and seedlings broadcast cultivation in rice. The results showed that the root dry weight in the no-tillage and seedlings broadcast (NSB) treatment was lower than that in the conventional tillage and seedlings transplanted (NST) treatment, and its profile distribution of root amount was mostly in the surface (0～5 cm) soil layer. The fixing force of rice roots had a trend of conventional-tillage and seedlings transplanted＞conventional-tillage and seedlings broadcast＞no-tillage and seedlings broadcast, and the longer the no-tillage time was, the more obvious the tendency would be.