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| DOI：10.13522/j.cnki.ggps.20190117 |
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| Impact of Different Tillage Methods on Soil Enzyme Activities and Water Content of Alfalfa |
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ZHAO Kaichao, LIU Shuhui, LU Yangjie, ZHANG Yongkang, ZHAO Duqin, WANG Yonghong
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1.College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; 2.Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co.,Ltd., Xi’an 710021, China; 3.Shanxi Institute of Water Resources and Hydropower Sciences, Taiyuan 037002, China
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| Abstract: |
| 【Objective】The changes of soil enzyme activities and water content under different tillage methods were studied in order to understand the changes of soil environment, and to provide a basis for improving soil quality and crop yield. 【Method】In this experiment, alfalfa was used as the test material. Four different cultivated treatments were applied which involved traditional tillage without film covering (TW), traditional tillage with film covering (TM), ridge tillage without film covering (RW) and ridge tillage with film covering (RM). The changes of soil enzyme activities, the water content and the effects on alfalfa growth were analyzed under the four different treatments.【Result】Compared with the treatment of TW, the urease and phosphatase activities under TM, RW and RM treatment increased significantly. The effect of soil enzyme activities in 0~20 cm soil depth and the soil water content in the 0~10 cm depth were significant. Compared with September, the soil water content in July changed greatly. The average plant height and the yield under the treatment of RM was the best, the maximum yield was 7.42 kg/m2.【Conclusion】Under the treatment of RM, the soil enzyme activities was the highest, the soil fertility and the growth of alfalfa were the best. The changes of the soil enzyme activities in the 0~20 cm soil depth were obvious. The seasonal factors had greater effects on soil water content than cultivated methods. |
| Key words: soil enzyme activity; soil water content; farming method; alfalfa |
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