Swine manure and quicklime have different impacts on chemical properties and composition of bacterial communities of an acidic soil
文献类型: 外文期刊
第一作者: Xun, Weibing
作者: Xun, Weibing;Zhang, Ruifu;Xun, Weibing;Xiong, Wu;Ran, Wei;Shen, Qirong;Zhang, Ruifu;Xun, Weibing;Xiong, Wu;Ran, Wei;Shen, Qirong;Zhang, Ruifu;Huang, Ting;Li, Dongchu;Li, Qiang
作者机构:
关键词: Swine manure;Quicklime;Acidic soil remediation;Chemical property;Bacterial community
期刊名称:APPLIED SOIL ECOLOGY ( 影响因子:4.046; 五年影响因子:4.884 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Red soil is a kind of Ferralic Cambisol. Good hydrothermal resources but usually acidic and low base saturation make it very easy to be acidified under unreasonable fertilizer managements in agricultural area. In 1990, a series of fertilizer applications were established on a homogeneous field to investigate the soil fertility changes under different fertilizations in Hunan province, among them, long-term chemical nitrogen fertilization (NPK) induced severe soil acidification, whereas long-term chemical plus swine manure fertilization (NPKM) exhibited an overwhelming advantage in terms of nutrient concentration and bacterial diversity. In 2010, to investigate the effect of short-term quicklime and swine manure applications on the acid red soil, a remediation experiment was established on the NPK treatment. Quicklime (CaO) and swine manure (the same as the swine manure in NPKM) applications on NPK soil had different effects on remediating the soil acidification: short-term quicklime application (NPK + Ca) increased soil pH and bacterial diversity more rapidly, whereas short-term swine manure application (NPK + M) improved soil nutrient concentration more effectively. Alteration of environmental conditions caused significant changes of bacterial community: oligotrophic groups were in greater relative abundances with quicklime treatment, whereas copiotrophic groups were in greater relative abundances with swine manure treatment. This study provides insights into the two major remediation approaches for an acidic red soil; these insights are important for soil remediating and improving fertility. Taken together, we recommended short-term quicklime application to increase the soil pH quickly and longterm swine manure fertilization to improve soil fertility. (C) 2015 Elsevier B.V. All rights reserved.
分类号: S154.1
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