动物源有机肥对茶树根际土壤酸度及微生物的影响

发布时间：2018-06-23 05:55

本文选题：动物粪便 + 茶树　；参考：《中国农业科技导报》2017年05期

【摘要】：以腐熟发酵过的猪粪、牛粪、羊粪为材料,采用外源添加处理的方法,探讨不同用量动物粪便对茶树根际土壤酸度、微生物生物量及区系影响,以期为研究茶树根际土壤改良提供依据。结果表明,不同动物粪便处理后,能有效调节茶树根际土壤的酸度;随着处理动物粪便用量的增加,茶树根际土壤的微生物生物量碳、微生物呼吸强度、微生物生物量氮及细菌、放线菌、氨化细菌、亚硝酸细菌、反硝化细菌、好气性自生固氮菌、纤维素分解菌的数量呈现先上升后下降的趋势,而真菌数量则相反;不同动物粪以猪粪用量1.5 kg/m2,牛粪、羊粪用量2.0 kg/m2时对土壤微生物环境的改善程度最佳;不同粪便处理对茶树根际酸度的调节作用及对土壤微生物数量影响最强时,以猪粪最高、羊粪次之、牛粪最低。上述结果表明动物粪便的使用能有效调节茶树根际土壤的酸化,改善土壤微生物生存环境,提高土壤微生物活性。
[Abstract]:The effects of different amounts of animal manure on the acidity, microbial biomass and fauna of tea rhizosphere soil were studied by using fermented pig manure, cattle manure and sheep manure as materials, and exogenous treatments were used to study the effects of different amounts of animal manure on soil acidity, microbial biomass and fauna of tea plants. In order to provide the basis for the study of tea rhizosphere soil improvement. The results showed that the acidity of tea rhizosphere soil could be effectively regulated after different animal feces treatment, and the microbial biomass carbon and respiration intensity of tea rhizosphere soil increased with the increase of animal feces treatment. Microbial biomass nitrogen and bacteria, actinomycetes, ammoniated bacteria, nitrite bacteria, denitrifying bacteria, good gas autogenous nitrogen-fixing bacteria, cellulose decomposition bacteria increased first and then decreased, but the number of fungi was opposite. When the dosage of pig manure was 1.5 kg / m ~ 2, the dosage of cattle manure and sheep manure was 2.0 kg/m2, the improvement degree of soil microbial environment was the best, and when different faeces treatment had the most effect on the acidity of rhizosphere of tea plant and the number of soil microorganism, pig manure had the highest effect on soil microbial quantity. Sheep dung was the second and cow dung was the lowest. The results indicated that the use of animal feces could effectively regulate the acidification of tea rhizosphere soil, improve the living environment of soil microbes and enhance the soil microbial activity.
【作者单位】：龙岩学院生命科学学院;福建农林大学福建省农业生态过程与安全监控重点实验室;武夷学院茶与食品学院;
【基金】：国家重点研发计划专项(2016YFD0200900) 国家948项目(2014-Z36) 教育部博士后科学基金项目(2016M600493) 福建省自然科学基金项目(2017J05057) 龙岩学院产学研项目(LC2015013) 龙岩学院人才引进项目(LB2015001) 福建省大学生创新创业训练计划项目(201611312028)资助
【分类号】：S141;S571.1

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