| The change of soil available nutrients and enzyme activity in sweet cherry replanted soil |
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| DOI：10.7606/j.issn.1000-7601.2017.04.07 |
| Key Words: sweet cherry replanted soil soil enzyme activity soil available nutrients correlation analysis |
| Author Name | Affiliation | | SI Peng | Institute of Zhenghzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan 450009, China | | SHAO Wei | Institute of Zhenghzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan 450009, China | | YU Hui-li | Institute of Zhenghzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan 450009, China | | YANG Xiao-jing | Institute of Zhenghzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan 450009, China | | QIAO Xian-sheng | Institute of Zhenghzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan 450009, China | | GAO Deng-tao | Institute of Zhenghzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan 450009, China | | WANG Zhi-qiang | Institute of Zhenghzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan 450009, China |
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| Abstract: |
| To investigate the change of soil available nutrients and enzyme activity in sweet cherry replanted soil, soil mineral elements content in (such like total N, nitrate N, ammonia N, available P and available K) and enzyme activity of (including urease, catalase, alkaline phosphatase and invertase) soil samples from NP (the plot never planted sweet cherry), FP (the plot first planted sweet cherry) and RP (the plot replanted sweet cherry)were measured. The results indicated that compared with FP, the content of nitrate N, available P, available K, available B, available Zn, available Fe, available Cu and exchangeable Mg significantly decreased, and the activities of urease and alkaline phosphatase also obviously decreased in RP; With soil depth increasing, the content of mineral elements (except for the content of available Mn, available Fe and exchangeable Ca) and soil enzyme activity including urease and alkaline phosphatase and invertase from in RP significantly decreased, while the exchangeable Ca content increased; Ca/P, Ca/K, Ca/Zn, Zn/Mn and Zn/Mg were imbalanced in RP. Additionally, correlation analysis showed that the cultivating times was positively correlated with the content of available Mn; Urease and alkaline phosphatase were positively correlated with available K (r=0.848 and 0.880), available P(r=0.856 and 0.932), available B(r=0.744 and 0.761), available Zn(r=0.767 and 0.852) and Cu(r=0.788 and 0.852); Invertase was positively correlated with available K, P and Cu (0.626, 0.71 and 0.656); urease, alkaline phosphatase and invertase were negatively correlated with the exchangeable Ca (0.784, 0.866 and 0.854). In brief, soil available nutrient contents and enzyme activity significantly decreased by replanted sweet cherry seedlings, and the nutrient proportion was imbalanced. |
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