首页 | 本学科首页   官方微博 | 高级检索  
     检索      

不同施肥处理对长期不施肥区稻田土壤微生物生态特性的影响
引用本文:张奇春,王雪芹,时亚南,王光火.不同施肥处理对长期不施肥区稻田土壤微生物生态特性的影响[J].植物营养与肥料学报,2010,16(1):118-123.
作者姓名:张奇春  王雪芹  时亚南  王光火
作者单位:1.浙江大学环境与资源学院,浙江省亚热带土壤与植物营养重点实验室,浙江杭州 310029
基金项目:国家自然科学基金,浙江大学紫金计划项目,哈尔滨工业大学校科研和教改项目 
摘    要:采用室内恒温培养方法,研究了不同施肥处理对水稻长期肥料试验中不施肥区(CK)和全肥区(NPK)土壤酶活性及微生物群落结构的变化。结果表明,施肥处理(单施化肥、施猪粪和施秸杆)可以显著提高土壤的微生物量碳以及脲酶、酸性磷酸酶的活性,施用有机肥的效果明显大于单施化肥; 有机肥在无肥区(CK)的施用效果与在全肥区(NPK)的效果接近。PLFA分析表明,施肥使无肥区(CK)土壤微生物群落结构发生了显著的变化,施用有机肥显著增加了土壤微生物群落结构的多样性。与不施肥和单施化肥相比,施有机肥主要增加了细菌和真菌的特征脂肪酸如不饱和脂肪酸、环状脂肪酸cy19∶0等的相对含量,而降低了放线菌标记性脂肪酸10Me18∶0的相对含量。

关 键 词:水稻土    施肥    微生物    酶活性
收稿时间:2009-1-16

Effects of different fertilizer treatments on ecological characteristics of microorganism in chemical fertilizer omission paddy soil
ZHANG Qi-chun,WANG Xue-qin,SHI Ya-nan,WANG Guang-huo.Effects of different fertilizer treatments on ecological characteristics of microorganism in chemical fertilizer omission paddy soil[J].Plant Nutrition and Fertilizer Science,2010,16(1):118-123.
Authors:ZHANG Qi-chun  WANG Xue-qin  SHI Ya-nan  WANG Guang-huo
Institution:1.College of Environmental and Resources Science,Zhejiang University/Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition,Hangzhou 310029,China
Abstract:The effects of different fertilizer treatments on soil ecological characteristics of microorganism of fertilizer omission plots (CK) and whole NPK plots (NPK) in a long-term fertilization experiment for rice were investigated. The results show the soil enzyme activity and microbial biomass C were significantly increased under the fertilization, and organic manure has much larger effect than that of the pure chemical fertilizers (CF). The application of organic manure in the CK soil and the NPK soil has similar effect on enzyme activity and microbial biomass C. The results of PLFAs show the composition of the microbial community of the CK soil is changed by different organic fertilization treatments. Organic manure application has substantial impact on the microbical diversity of the soil. It mainly increased the mole percentage of the PLFA biomarker unsaturated fatty acids, cyclopropane cy19:0 for bacteria and fungi, and reduced the 10 Me18:0 mole percentage of the PLFA for actinomycetes.
Keywords:fertilization  paddy soil  microorganism  enzymatic activities

本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《植物营养与肥料学报》浏览原始摘要信息
点击此处可从《植物营养与肥料学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号