欢迎来到天天文库
浏览记录
ID:5293124
大小:361.12 KB
页数:5页
时间:2017-12-07
《不同耕作和覆盖对烟草产值及土壤质量的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西南农业学报2014年27卷1期SouthwestChinaJournalofAgriculturalSciencesV01.27No.1文章编号:1001—4829(2014)01—0082—05不同耕作和覆盖对烟草产值及土壤质量的影响罗付香,林超文,庞良玉,冯文强,朱波,易丽霞(四川省农业科学院土壤肥料研究所,四川成都610066)摘要:本文通过3年长期定位试验研究了不同耕作和覆盖方式对烟草产值和土壤质量的影响。结果表明,翻耕处理烟叶产量和产值分别较免耕处理大22.72%和37.23%,轮作处理烟叶产量和产值分别较连作
2、处理大1.83%和19.41%,秸秆还田烟叶产量和产值分别较不还田大3.55%和2.4%,说明翻耕、轮作和秸秆还田能够一定程度提高烟叶的产量和产值,特别是在轮作条件下翻耕对增加烟叶产量和产值有显著作用;另外免耕处理速效磷、碱解氮、有机质、全氮和全磷分别较翻耕处理分别大35.14%、9·92%、9.57%、4.40%和34.16%,特别是在免耕条件下,连作烟田土壤PH值、速效钾、速效磷、碱解氮、有机质、全氮、全磷和全钾较轮作烟田分别大2.Ol%、48.68%、73.09%、11.45%、7.71%、7.31%、47.68%和
3、11.78%,说明免耕和连作处理提高土壤中有机质和氪、磷全量和有效量的残留,因此,从培肥地力的和烟草生产可持续的角度考虑,免耕条件下连作处理是最适宜于当地土壤地力培肥的。从提高烟叶产量和产值的角度考虑,绿肥一烟叶一绿肥/小麦/玉米一绿肥一烟叶轮作处理是最适宜该区的种植模式。关键词:烟草;耕作方式;覆盖方式;产值;土壤质量中图分类号:s572文献标识码:AEfectofDiferentTillageandMulchingonTobaccoOutputValueandSoilQualityLUOFu—xiang,LINChao
4、-wen,PANGLiang-yu‘,FENGWen-qiang,ZHUBo,YILi-xia(SoftandFertilizerInstitute,SichuanAcademyofAculturalSciences,SichuanChengdu610066,China)Abstract:Theinfluenceofdife~nttillageandmulchingmethodsontobaccoyieldandoutputvalueandsoilqualitywereresearchedby3一yearlong-term
5、experiment.Theresultsshowedthatthetabacooyieldandoutputvalueoftumovertreatmentincreasedby22.72%and37.23%,respectively,comparedwithno-tilagetreatment.Thetabacooyieldandoutputvalueofcroprotationtreatmentincreasedby1.83%andl9.41%,respectively,comparedwithcontinuouscr
6、oppingtreatment.Tabacecyieldandoutputvalueofstrawmulchingtreatmentin—creasedby3.55%and2.4%,respectively,comparedwithonstrawmulchingtreatment.Thisshowedthattheyieldandoutputvalueoftubaccowereimprovedundertheconditionofplowing,rotationandstrawmulching,especiallyplow
7、ingandcroprotationconditionshadasignificantroleonincreasingtobaccoyieldandvalue.ThecontentofAP,AN,OM,TN,TPonno—tillagetreatmentincreasedby35.14%,9。92%,9.57%,4.4o%and34.16%,respectively,comparedwithtumover,especiallythepHandthecontentofAK,AP,AN,OM,TN,11)andTKonincr
8、easedby2.01%,48.68%,73.O9%,l1.45%,7.7l%,7.31%,47.68%and11.78%underno-tillagecontin-UOU8croppingtreatment,comparedwithno-tillagecontinuousrotatetreatment
此文档下载收益归作者所有