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Linkages between straw decomposition rate and the change in microbial fractions and extracellular enzyme activities in soils under different long-term fertilization treatments

文献类型: 外文期刊

作者: Zhao, Shicheng 1 ; Zhang, Shuiqing 2 ;

作者机构: 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Plant Nutr & Fertilizer, Minist Agr, Beijing, Peoples R China

2.Henan Acad Agr Sci, Inst Plant Nutr & Environm Resources Sci, Zhengzhou, Henan, Peoples R China

期刊名称:PLOS ONE ( 影响因子:3.24; 五年影响因子:3.788 )

ISSN: 1932-6203

年卷期: 2018 年 13 卷 9 期

页码:

收录情况: SCI

摘要: In order to study the linkages between straw decomposition rate and the change in soil biological properties after straw addition to different fertilized soils, we collected soils from three long-term fertilization treatments (no-fertilizer, CK; nitrogen, phosphorus, and potassium fertilizers, NPK; NPK plus straw (S), NPKS), and incubated maize straw with these soils at 25 degrees C for 75 days. The average straw carbon dioxide (CO2) emission rate in the CK+straw (S), NPK+S, and NPKS+S treatments was 0.58 +/- 0.51, 0.66 +/- 0.53, and 0.74 +/- 0.58 mu g C g(-1) soil h(-1), respectively. The average increase in the contents of fungi, bacteria, and Actinomycetes under straw addition treatments than the control soils (CK, NPK, and NPKS, respectively) changed in the order of CK+S <= NPK+S,

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