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Soil extracellular enzyme activities under long-term fertilization management in the croplands of China: a meta-analysis

文献类型： 外文期刊

作者： Miao, Fuhong 1 ; Li, Yuan 2 ; Cui, Song 4 ; Jagadamma, Sindhu 5 ; Yang, Guofeng 1 ; Zhang, Qingping 6 ;

作者机构： 1.Qingdao Agr Univ, Grassland Agri Husb Res Ctr, Qingdao 266109, Shandong, Peoples R China

2.Lincoln Univ, Dept Soil & Phys Sci, Lincoln 7647, New Zealand

3.Landcare Res, Lincoln 7640, New Zealand

4.Middle Tennessee State Univ, Sch Agribusiness & Agrisci, Murfreesboro, TN 37132 USA

5.Univ Tennessee, Dept Biosyst Engn & Soil Sci, Knoxville, TN 37996 USA

6.Shandong Acad Agr Sci, Shandong Inst Agr Sustainable Dev, Minist Agr, Key Lab East China Urban Agr, Jinan 250100, Shandong, Peoples R China

关键词： Cropping intensity; Extracellular enzyme; Fertilization duration; Residue management; Soil carbon

期刊名称：NUTRIENT CYCLING IN AGROECOSYSTEMS （ 影响因子：3.27； 五年影响因子：3.767 ）

ISSN： 1385-1314

年卷期： 2019 年 114 卷 2 期

页码：

收录情况： SCI

摘要： The effects of fertilization and residue retention practices on enhancing crop yield and soil productivity, have been extensively investigated in various cropping system studies. However, various potential interactions exist among system components (soil, plant, microbial). The multitude and complexity of these interactions results in variability in agroecological responses, such as the soil extracellular enzyme activities (EEAs). Using a meta-analysis of 85 peer-reviewed articles published in the past three decades, we synthesized the EEAs of four major soil enzymes (urease, phosphatase, invertase, and peroxidase), which are affected by various fertilization and residue management practices used in cropping systems of China. The combined application of straw residues and chemical fertilizers, and straw residues only significantly increased soil organic carbon (by 38 and 47%, respectively) and total nitrogen (by 26 and 57%, respectively) as compared to the non-fertilized control. Manure plus chemical fertilizer treatments showed a consistent increase in urease, phosphatase and invertase activity by 86, 34 and 37%, respectively, as compared to the non-fertilized control. The use of inorganic fertilizers increased the activity of soil EEAs involved in carbon- and phosphorus-cycling, but did not decrease EEAs involved in nitrogen-cycling as expected. The experimental duration had a significant impact on urease activity, particularly with unbalanced application of chemical fertilizers. Therefore, along with managing fertilizer type, considerable attention should be given to adopting alternative production systems and increasing cropping intensity (preferably double cropping), to enhance soil EEAs.

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