竹炭基有机肥对茶园土壤酶活性及微生物群落的影响
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S154

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浙江省农林渔业经营与管理体系建设专项(浙财农【2017】91号);丽水市科技局重点研发项目(2019ZDYF16)


Effects of Bamboo Charcoal Organic Fertilizer on Soil Enzyme Activity and Microbial Community in Tea Garden
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    摘要:

    本研究设置了有机肥(施用量7.5 t/hm2)和4种竹炭添加量CK(0 t/hm2)、T1(1.35 t/hm2)、T2(1.8 t/hm2)和T3(2.25 t/hm2)4种处理,探究不同比例竹炭与有机肥配施对茶园土壤酶活性及其微生物群落结构的影响。结果表明:施用竹炭降低了土壤酸性磷酸酶活性,提高了蔗糖酶活性,对土壤中脲酶无显著影响。添加竹炭处理使土壤中放线菌生物量显著增加,增加幅度39.47%~57.02%,同时总PLFA量、细菌、真菌数量均有所增加,其中真菌PLFA增幅最高,达107.82%;但对真菌/细菌(F/B)比值和革兰氏阳性菌/革兰氏阴性菌(G+/G-)影响不显著。与CK相比,T1、T2和T3处理改变了土壤酶活性,同时可以刺激土壤微生物的活动和生长。

    Abstract:

    In this study,organic fertilizer(7.5 t/ha) and four bamboo charcoal supplemental levels CK(0 t/ha),T1(1.35 t/ha),T2(1.8 t/ha) and T3(2.25 t/ha) were set up to investigate the effects of different proportions of bamboo charcoal and organic fertilizer on soil enzyme activity and microbial community structure in tea garden.The results showed that the application of bamboo charcoal decreased soil acid phosphatase activity and increased soil sucrase activity,but had no significant effect on soil urease.Adding bamboo charcoal treatment significantly increased the biomass of actinomycetes in soil,with an increase range of 39.47%-57.02%.At the same time,the amount of total PLFA,bacteria and fungi increased,among which the increase of fungal PLFA was the highest,up to 107.82%.But for ratio of fungi/bacteria and Gram-positive bacteria/Gram-negative bacteria were not significant.In general,compared with CK,T1,T2 and T3 treatments changed soil enzyme activity and stimulated the activity and growth of soil microorganisms.

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季鑫,金爱武,朱强根.竹炭基有机肥对茶园土壤酶活性及微生物群落的影响[J].东北农业科学,2022,47(2):64-68.

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  • 收稿日期:2019-11-13
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  • 在线发布日期: 2024-11-09
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