Effects of livestock and poultry manure amendment and wetting-drying cycle on functional diversity of soil microbial community
Journal Title: 广东农业科学 - Year 2018, Vol 45, Issue 6
Abstract
"Water and fertilizer management is one of important measures in agricultural field management，it may control the quality and ecological stability of agricultural soil. In this study，the tested soil samples were taken from the plough-pan of a rice and wheat rotation agricultural system with long-term application of chemical fertilizer. The organic carbon content of tested soil was poor. Incubation experiment was established with the amendment of livestock and poultry manure and the intensity of wetting-drying cycle，to understand the effects of water and organic fertilizer management on soil microbial community functional diversity. Results showed that livestock and poultry manure amendment significantly improved the carbon using ability of soil microbial community. The soil AWCD value with poultry manure and livestock manure treatment was 4.5 and 5.9 times higher than that in control soil respectively；Richness index，Simpson index and Shannon index of soil microbial community were significantly higher than those of control. Wetting-drying cycle intensity also had a significant influence on soil microbial community functional diversity，showing the priming effect on soil microbial community functional diversity. And the strong wetting-drying cycle had the most obvious effect on it. Results of factor analysis，correspondence analysis and cluster analysis showed that livestock and poultry manure amendment was the main control factor on soil microbial community function diversity，while the wetting-drying cycle was the second control factor. The results indicated that the combined effect of livestock and poultry manure amendment and wetting-drying cycle could influence the functional diversity of soil microbial community by changing the carbohydrate and amino acid carbon source in soil."
Authors and Affiliations
Jiang-tao LI
Keywords
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- EP ID EP600960
- DOI 10.16768/j.issn.1004-874X.2018.06.012
- Views 71
- Downloads 0
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