土壤2011，Vol.43Issue(4)：590-594,5.
发酵牛粪对苏丹草根系丛枝菌根(AM)真菌侵染及磷吸收效率的影响
Effects of Fermented Dung on Root Mycorhizal Colonization and P-uptake Efficiency of Sorghum Sudanese
摘要
Abstract
A pot experiment in greenhouse was carried out to compare the effects of the application level of fermented dung (0.33%, 0.50% and 1.00%) on soil spore density, root mycorrhizal colonization, plant biomass and root-shoot ratio as well as the P-uptake efficiency of Sorghum sudanense grown in a sterilized soil inoculated with arbuscular mycorrhizal fungus (AMF) Glomus caledontum. AMF inoculation tended to decrease aerial biomass of Sorghum sudanense, but significantly elevated (p<0.05) the root-shoot ratio. The application of 0.33% and 0.50% fermented dung tended to increase soil spore density, root biomass and mycorrhizal colonization of Sorghum sudanense, and significantly increased (p<0.05) the P-uptake efficiency of the root system, while did not alter shoot-root ratio. However, the application of 1.00% fermented dung significantly accelerated (p<0.05) soil spore density, root biomass and mycorrhizal colonization of Sorghum sudanense with the same shoot-root ratio and 1.83 times of the P uptake efficiency as much as that inoculated with AMF alone. It suggests that the application of 1.00% fermented dung is the proper level for the propagation of Glomus caledonium and the elevation of P-uptake efficiency of Sorghum sudanense.关键词
发酵牛粪/苏丹草/AM真菌侵染率/土壤孢子密度/植株根冠比/磷吸收效率Key words
Fermented dung/ Sorghum sudanense/ AM colonization/ Soil spore density/ Root-shoot ratio/ P-uptake efficiency分类
农业科技引用本文复制引用
崔向超,胡君利,林先贵,戴珏,王锐,王俊华,王一明..发酵牛粪对苏丹草根系丛枝菌根(AM)真菌侵染及磷吸收效率的影响[J].土壤,2011,43(4):590-594,5.基金项目
中国科学院知识创新工程领域前沿项目(ISSASIP0703),公益性行业(农业)科研专项经费项目(20090301-1)和中国科学院知识创新工程重大项目(KSCX1-YW-09-05)资助. （ISSASIP0703）
