[1]ZHANG Daoyong,LI Huike,GUO Hong,et al.Effects of Growing White Clover on Soil Microbial Biomass Carbon and Nitrogen and Soil Enzyme Activity in Apple-White Clover Intercropping System[J].Research of Soil and Water Conservation,2015,22(05):39-45.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 05
Page number:
39-45
Column:
Public date:
2015-10-28
- Title:
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Effects of Growing White Clover on Soil Microbial Biomass Carbon and Nitrogen and Soil Enzyme Activity in Apple-White Clover Intercropping System
- Author(s):
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ZHANG Daoyong1, LI Huike1,2, GUO Hong1, DU Yifei1, WANG Haitao1
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1. College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Key Laboratory of Plant Nutrition and the Agro-Environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
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- Keywords:
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growing herbage in orchard; soil microbial biomass carbon; soil microbial biomass nitrogen; soil enzymatic activity
- CLC:
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S154.3
- DOI:
-
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- Abstract:
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Intercropping cover crops in orchards is one of soil managements for the sustainability of orchards. We examined dynamics of soil microbial biomass carbon (MBC), soil microbial biomass nitrogen (MBN), soil organic carbon (SOC), soil total nitrogen (TN) and soil enzyme activity in an apple-white clover system in Weibei of the Loess Plateau from 2005 to 2013. Soil samples were collected at depths of 0—5 cm, 5—10 cm, 10—20 cm and 20—40 cm in clear tillage and white clover-intercropping orchards. MBC, MBN, SOC, TN, ratio of MBC to SOC (qSMBC), ratio of SMBN to soil total nitrogen (qSMBN) and soil enzyme activity in apple-white clover intercropping system significantly increased in comparison with the clear tillage orchard. The increments, however, decreased rapidly with soil depth. MBC, MBN, qSMBC), qSMBN and soil enzyme activity were correlated or significantly correlated with SOC and soil TN. MBC, MBN and soil enzyme activities of apple orchard grass cultivation were sensitive to intercropping. Intercropping white clover has the positive impact on MBC, MBN and soil enzyme activity in apple orchard, the main effect concentrated in the 0—20 cm soil layer compared with clean tillage orchard.