期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2016

42

4

354-358

10.13331/j.cnki.jhau.2016.04.002

国家科技支撑计划项目

本校为第一机构

以水稻中早39为材料,采用免耕半固态直播(破胸稻种与稀泥以一定比例混合,播种在免耕的稻田里, NS),以传统直播为对照(CK),通过测定单株地上部干物质积累量、分蘖动态变化、SPAD值和叶绿素含量等,研究免耕半固态直播对水稻生长及产量构成的影响。结果表明:在三叶期和分蘖期,2个处理的单株地上部分干物质积累量差异没有统计学意义,但孕穗期和齐穗期NS处理的单株地上部干物质积累量分别为7.84、14.45 g,与CK相比,差异均达到极显著水平;NS处理的单株分蘖数为2.67,CK处理的单株分蘖数为2.56,两者的差异无统计学意义;在抽穗期,NS处理植株的倒二叶SPAD值达到最大,为46.90,与CK比较,差异极显著;9月9日,N...

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. T...