欢迎来到天天文库
浏览记录
ID:55643678
大小:262.45 KB
页数:4页
时间:2020-05-22
《长期施用秸秆及有机肥对辽宁北部棕壤土壤有效养分的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、沈阳农业大学学报,2013—12,44(6):812-815JournalofShenyangAgricultural!tyQ二(鱼);墨二蔓!长期施用秸秆及有机肥对辽宁北部棕壤土壤有效养分的影响闫洪奎,胡博,高立祯(沈阳农业大学农学院,沈阳110161)摘要:采用5年定位试验,研究秸秆还田、有机肥对辽宁北部棕壤土壤速效养分及有机质含量的影响。结果表明:与2005年相比,有机肥、秸秆还田处理增加了土壤有效氮和速效磷含量,速效钾含量有增有降,有机质含量持平或下降;增加有机肥数量可提高土壤有效氮、速效磷、速效钾含量,增加秸秆还田数量可提高土壤速效钾含量;施用有机
2、肥的土壤有效氮、速效磷、速效钾含量比秸秆还田处理分别增加了7.06%~13.77%、7.48%~7.99%和37.65%~45.35%;全量秸秆还田、全量有机肥处理的土壤有机质含量相近,半量秸秆还田和半量有机肥的土壤有机质含量高于全量处理,平均分别增加了24.45%和16.53%,半量秸秆还田和半量有机肥配合比单独施用平均增加33.87%。关键词:中低产田;棕壤;秸秆还田;有机肥;有效养分DOI:10.3969~.issn.1000-1700.2013.06.017中图分类号:S158.2;St41文献标识码:A文章编号:1000—1700(2013)06—
3、0812—04EfectsonAvailableNutrientsofBrownSoilinNorthernLiaoningunderLong-termUseofStrawandOrganicFertilizerYANHong-kui,HUBo,GAOLi-zhen(CollegeofAgronmy,ShenyangAculturalUniversity,Shenyang110161,China)Abstract:EfectsofstrawandorganicfertilizerappliedintothebrownsoilinnorthernLiaonin
4、gonsoilavailablenutrientandorganicmattercontentswereinvestigatedina5-yearlocatedexperiment.Theresultsshowedthathighersoilavailablenitrogenandphosphorouscontents,higherorlowersoilavailablepotassiumcontent,andinvariantorreducedorganicmattercontentswereabservedcomparedwiththevaluesin2
5、005.Withincreasingorganicfertilizer,thesoilavailablenitrogen,phosphorousandpotassiumcontentswereimproved.Thesoilavailablepotassiumcontentwasenhancedwithincreasingstrawamountapplied.Soilavailablenitrogen。phosphorousandpotassiumwiththeorganicfertilizerapplicationtreatmentwereincrease
6、dby7.06%-13.77%,7.48%一7.99%and37.65%~45.35%respectivelycomparedtothestrawapplicationtreatment.Soilorganicmattercontentwithfull—amountstrawapplicationequaledthatwithfull—amountorganicfertilizerapplication.Whilesoilorganicmattercontentwithhalf-amountstrawandorganicfertilizerapplicati
7、onwashigherthanthatwithfull-amountapplicationseparatelyby24.45%and16.53%ontheaverage.Withcombininghalf-amountstrawapplicationandhalf-amountorganicfertilizerapplicationthesoilorganicmatterwas33.89%higherthanthatwithsingletreatment.Keywords:mediumandlowyieldfield;brownsoil;strawretur
8、ning;farmyardmanure;availa
此文档下载收益归作者所有