草业科学2009，Vol.26Issue(7)：40-43,4.
丛枝菌根真菌对紫花苜蓿凋落物降解的研究
Study of arbuscular mycorrhzizal fungi on decomposition of alfalfa litter
摘要
Abstract
Litterbag was used to study the effect of arbuscular mycorrhzizal fungus Glomus mosseae to the decomposition of alfalfa(Medicago sativa)litter. Litters were embeded in the soil and sampled at 4, 14, 21 and 28 days later. Results showed that dry weights of alfalfa litters gradually reduced over times. Inoculation with arbuscular mycorrhizal fungi remarkable improved the decomposition rate of alfalfa roots. Shoot and root N concentrations showed a rapid decline and then accumulated gradually. Shoot P concentrations increased initially and maintained a relatively stable level, root P concentrations maintained at a stable level generally. Root decomposition rate, N and P concentrations of alfafa with inoculating arbuscular mycorrhizal were remarkable higher than that of non-inoculated control, but there was no significant difference in shoot.关键词
紫花苜蓿/丛枝菌根真菌/凋落物/根系/养分Key words
alfalfa/ arbuscular mycorrhzizal fungi/ litter/ root system/ Nutrient分类
农业科技引用本文复制引用
李欢,张俊伶,王冲,向丹..丛枝菌根真菌对紫花苜蓿凋落物降解的研究[J].草业科学,2009,26(7):40-43,4.基金项目
国家自然科学基金项目(40071050) （40071050）
