| 我国南方秸秆还田的培肥增产效应 |
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| 引用本文： | 杨帆,李荣,崔勇,包耀贤,段英华.我国南方秸秆还田的培肥增产效应[J].中国土壤与肥料,2011(1):10-14. |
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| 作者姓名： | 杨帆 李荣 崔勇 包耀贤 段英华 |
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| 作者单位： | 1. 全国农业技术推广中心,北京,100026
2. 中国农业科学院农业资源与农业区划研究所/农业部作物营养与施肥重点开放实验室,北京,100081 |
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| 基金项目： | 国家财政部土壤有机质提升补贴项目，国家"十一五"重点科技支撑计划项目 |
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| 摘 要： | 分别在安徽、湖南、湖北、广西和江苏布置定位试验2年,研究秸秆还田对水稻土的培肥增产效应。结果表明,相比对照(常规施肥,无秸秆还田),秸秆还田(常规施肥+秸秆腐熟剂+秸秆还田)2年来,各试验区域土壤结构疏松,肥力提高,产量增加。总体表现为:土壤容重平均下降2.69%;有机质、全氮、全磷、速效磷、全钾、速效钾和缓效钾分别平均增加6.20%、4.45%、3.68%、6.21%、3.48%、8.42%和4.20%;pH值变化不明显;作物平均增产7.5%(2.2%～18.5%),增幅为水稻(7.2%)<油菜(8.1%)<小麦(11.9%),增产效应均为第1年最明显,且随秸秆还田年限的延续而减缓。在我国应更大面积推广秸秆还田。
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| 关 键 词： | 秸秆还田 土壤有机质 土壤培肥 增产效应 |
Effect of straw returning on improving soil fertility and increasing crop yield in Southern China |
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| YANG Fan,LI Rong,CUI Yong,BAO Yao-xian,DUAN Ying-hua.Effect of straw returning on improving soil fertility and increasing crop yield in Southern China[J].Soil and Fertilizer Sciences in China,2011(1):10-14. |
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| Authors: | YANG Fan LI Rong CUI Yong BAO Yao-xian DUAN Ying-hua |
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| Institution: | YANG Fan1,LI Rong1,CUI Yong1,BAO Yao-xian2,DUAN Ying-hua2(1.National Agricultural Technology Extension and Service Center,Beijing 100026,2.Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences /Key Laboratory of Crop Nutrition and Fertilization,Ministry of Agriculture,Beijing 100081) |
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| Abstract: | Two years location experiments were conducted in the province of Anhui,Hunan,Hubei,Guangxi and Jiangsu to study effect of straw returning on improving soil fertility and increasing crop yield in paddy soil.Results showed that,after 2 years of straw returning(conventional fertilization+decomposition agent+straw returning),soil structure became loose,fertility was improved and crop yield increased compared with CK(conventional fertilization and no straw)in all experimental site.As a whole,soil bulk density wa... |
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| Keywords: | straw returning soil organic matter improvement of soil fertility the yield increasing effect |
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