期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2005

31

1

35-38

10.3321/j.issn:1007-1032.2005.01.009

湖南省科技厅资助项目（00NYK1001）；

本校为第一机构

在利用稻鸭互利共生的关系的基础上,将免耕技术引入稻田生态系统,形成稻田免耕养鸭技术新体系.从土壤生物学特性方面对免耕稻鸭复合系统生态学特性进行了研究,旨在为评价该系统的生态学功能提供科学依据.结果表明:1)各处理土壤中三大类微生物数量在剖面中有明显的上高下低的分布趋势,特别是0～5cm土层,NCD(免耕养鸭处理)量高于同层次的NCND(免耕不养鸭处理)和CCND(翻耕不养鸭处理).NCD的剖面分布也是呈现上高下低的格局,但5～15cm土层中各微生物数量和总数均大于NCND和CCND处理中同层次的微生物数.上下两层土壤中,NCD与CCND和NCND的差异均达到极显著水平.2)土壤微生物量生物量碳依土壤层次的深浅...

Based on the mutualistic symbiosis relationship of rice and duck,jointed with no-tillage technique,the new no-tillage system of raising duck in paddyfield was formed.In order to provide the scientific and theoretic foundation for ecological assessment and popularization of the system,soil microbe was studied.The results showed that:firstly,the amounts of three kinds of microbe in section has an obvious floristic distribution trend,the upper the more.Especially in 0~5 cm soil,each microbe amounts of the NCD(no-tillage cast-transplanted with duck...