湖南农业大学学报（自然科学版）2016，Vol.42Issue(4)：354-358,5.
免耕半固态直播对水稻的生长及产量构成的影响
Effect of no-tillage and direct seeding with semisolid soil on growth character and yield components of rice
摘要
Abstract
In this experiment, rice variety Zhongzao 39 was used as material, a treatment of no-tillage and direct seeding (the chest-bursting seeds mixed with semisolid soil and sowing directly in no-tillage rice paddy) and a traditional direct seeding (CK) were designed and the amount of dry matter, dynamic changes of tillers, SPAD value and the amount of chlorophyll were measured, to study the growth character and yield components of rice. The results showed that the difference of the amount of dry matter between the NS treatment and the CK was no significant in three-leaf stage and tillering stage. The amounts of dry matter of the NS treatment were 7.84 and 14.45 g in booting stage and full heading stage respectively, which were significantly higher than those of CK. The tillers per plant of NS and CK were 2.67 and 2.56 respectively, the difference of them was no siginificant. The SPAD value of the penultimate leaf in the heading stage was the biggest, which was 46.90, it was significantly higher than that of CK. The contents of chlorophyll a and chlorophyll b and the SPAD value of the flag leaf reached the highest level on September 9th, SPAD value was 45.96, chlorophyll a and chlorophyll b were 6.38, 2.24 mg/L respectively. The yields of NS and CK were 7.31 and 6.94 t/hm2 respectively, the difference of them was a very significant.关键词
水稻/免耕半固态直播/生长性状/产量Key words
rice/no-tillage semisolid seeding/growth character/yield分类
农业科技引用本文复制引用
梁玉刚,李静怡,张启飞,周江伟,刘贵斌,黄璜..免耕半固态直播对水稻的生长及产量构成的影响[J].湖南农业大学学报（自然科学版）,2016,42(4):354-358,5.基金项目
国家科技支撑计划项目(201203081-2、2013BAD07B11、2013BAD20B10) （201203081-2、2013BAD07B11、2013BAD20B10）
