LI Zheng-zhou,DING Xu,LAI Mao-tian,et al.Effects of Trichoderma on Muskmelon Soil Enzyme Activity with Different Stage[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(12):53-57.[doi:DOI:10.11942/j.issn1002-2767.2021.12.0053]
外施木霉对甜瓜土壤酶活性的影响
- Title:
- Effects of Trichoderma on Muskmelon Soil Enzyme Activity with Different Stage
- Keywords:
- soil enzyme; muskmelon; Trichoderma; continuous cropping; rhizosphere
- 文献标志码:
- A
- 摘要:
- 为促进木霉复合菌剂的开发,通过小区试验,以羊角脆为研究对象,设置施用木霉(T)和未施用木霉(CK)2个处理,测定了不同时期甜瓜根际土壤酶活性。结果表明:在生长前期,施用木霉较对照显著提高了甜瓜根际土壤脲酶和磷酸酶的活性,提高了土壤对氮和磷的利用、转化,但脱氢酶的活性则显著下降,蔗糖酶和多酚氧化酶活性无显著差异。说明外施木霉可以通过土壤氮和磷的转化利用来改善土壤营养环境,减少氮素的积累以及其造成的次生盐碱化从而缓解连作障碍。
- Abstract:
- In order to promote the development of Trichoderma agent,we designed two treatments (CK and T) by plot experiment,Yangjiaocui was taken as object,five soil enzyme acitivity with different stage were measured.The resulted showed that compared with the control,application of Trichoderma increased the activity of urease and phosphatase significantly,and improved the utilization and transformation of nitrogen and phosphorus in previous stage of growth,but the activities of dehydrogenase significantly decreased,meanwhile the activities of sucrase and polyphenol oxidase had no significant difference.These results suggested that application of Trichoderma could improve the environment of soil through the conversion and utilization of soil nitrogen and phosphorus,which reduced the accumulation of nitrogen and induced secondary salinization,thus alleviated the obstacle of continuous cropping.
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备注/Memo
收稿日期:2021-09-05