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Effect of VA mycorrhiza inoculation on clover in utilising soil organic phosphorus

SONG Yong chun, LI Xiao lin, FENG Gu [WT5BZ](Department of Plant Nutrition, China Agricultural University, Beijing 100094, China)  
The effect of VA mycorrhizal hyphae on clover in absorbing phosphorus from different organic sources was studied with inoculation of Glomus mosseae on Trifolium pratense in a pot experiment. Each of the pots used consisted of three compartments separated with nylon nets. Inoculated red clover was grown in the central compartment and all the compartments were applied with RNA, lecithin and Na phytate as organic P sources. Uninoculated red clover was planted under the same condition as control. The plants were harvested after 8 weeks of growth and their dry matter, P content, root length and infection rate by mycorrhiza were measured. It was shown that mycorrhizal infection had significant effect in promoting P uptake and growth of red clover, without noticeable difference between the given P sources.
【Fund】: 国家自然科学基金资助项目! (395 2 5 0 1 9;39790 1 0 0 )
【CateGory Index】: S541.2
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