匡石滋, 田世尧, 李春雨, 易干军, 彭群. 香蕉间作模式和香蕉茎秆堆沤还田对土壤酶活性的影响[J]. 中国生态农业学报(中英文), 2010, 18(3): 617-621. DOI: 10.3724/SP.J.1011.2010.00617
引用本文: 匡石滋, 田世尧, 李春雨, 易干军, 彭群. 香蕉间作模式和香蕉茎秆堆沤还田对土壤酶活性的影响[J]. 中国生态农业学报(中英文), 2010, 18(3): 617-621. DOI: 10.3724/SP.J.1011.2010.00617
KUANG Shi-Zi, TIAN Shi-Yao, LI Chun-Yu, YI Gan-Jun, PENG Qun. Effect of banana intercropping pattern and straw compost-return on soil enzyme activity[J]. Chinese Journal of Eco-Agriculture, 2010, 18(3): 617-621. DOI: 10.3724/SP.J.1011.2010.00617
Citation: KUANG Shi-Zi, TIAN Shi-Yao, LI Chun-Yu, YI Gan-Jun, PENG Qun. Effect of banana intercropping pattern and straw compost-return on soil enzyme activity[J]. Chinese Journal of Eco-Agriculture, 2010, 18(3): 617-621. DOI: 10.3724/SP.J.1011.2010.00617

香蕉间作模式和香蕉茎秆堆沤还田对土壤酶活性的影响

Effect of banana intercropping pattern and straw compost-return on soil enzyme activity

  • 摘要: 采用大田试验研究了香蕉3种间作模式(香蕉-大豆、香蕉-花生、香蕉-生姜)和香蕉茎秆堆沤处理后2种不同还田量(2.5 kg·株-1、1.5 kg·株-1)对蕉园土壤脲酶、过氧化氢酶、碱性磷酸酶、蔗糖酶活性的影响。结果表明, 香蕉间作可提高土壤脲酶、碱性磷酸酶、蔗糖酶活性, 其中对蔗糖酶活性的影响最为明显, 碱性磷酸酶、脲酶次之; 香蕉间作模式的过氧化氢酶活性低于香蕉单作。不同间作模式对酶活性影响的大小总体表现为: 间作大豆>间作花生>间作生姜>香蕉单作。茎秆堆沤还田处理的蔗糖酶、脲酶活性明显上升, 其中对蔗糖酶活性提高的幅度最大, 达34.6%~39.2%, 脲酶达9.7%~28.7%; 茎秆堆沤还田对过氧化氢酶活性影响相对较小, 而对碱性磷酸酶活性则表现为明显的抑制作用。不同还田量处理对土壤酶活性的影响表现为: 随还田量增加, 脲酶活性增强, 蔗糖酶增加不显著, 过氧化氢酶活性在还田量低于2.5 kg·株-1时比对照略有下降。

     

    Abstract: Field experiments were conducted to investigate the effects of three intercropping patterns (banana-soybean, banana-peanut, and banana-ginger) of banana and two straw compost-returns (2.5 or 1.5 kg per plant) on the activity of urease,?catalase,?alkaline phosphatase, and invertase in orchard soils. Intercropping increases urease,?alkaline phosphatase and invertase activity. The highest activity increase occurs in invertase, followed by alkaline phosphatase and urease. On the contrary, intercropping decreases catalase activity. The order of effect of the intercropping patterns on enzyme activity is ranked as banana-soybean>banana-peanut>banana-ginger>banana monoculture. Significant increases are achieved in invertase and urease activity under the straw compost-return treatment, with the highest increment occurring in invertase (34.6%~39.2%), followed by urease (9.7%~28.7%). While catalase activity is slightly influenced, alkaline phosphatase activity is significantly inhibited by straw compost-return. Under straw compost-return, urease activity increases with increasing dose of straw compost while invertase activity slightly increases. Furthermore, catalase activity decreases when straw compost is lower than 2.5 kg per plant.

     

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