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时间:2020-06-20
《耕作方式对烟地土壤养分流失及烟叶产质量的影响.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、中国摩擘通提2014,30(22):174—179ChineseAgriculturalScienceBulletin耕作方式对烟地土壤养分流失及烟叶产质量的影响蔡毅,向金友,程智敏,黄胜‘,杨苹,张吉亚,杨懿德,谢冰(宜宾市农业科学院,四川宜宾644600,四川省烟草公司宜宾市公司,四川宜宾644000)摘要:为减少植烟地水土养分流失和实现烟叶产质量最大化,试验研究常规耕作、免耕、免耕+稻草覆盖3种耕作方式对深丘山地烤烟土壤水土流失、养分流失和烟叶产质量的影响。结果表明:与常规耕作比较,免耕和免耕+稻草覆盖均能减少水土流失,径流量分别减少9.54%,26.
2、01%;不同耕作方式养分流失量不同,全氮和全磷流失特征表现为常规耕作>免耕>免耕+稻草覆盖;与常规耕作比较,免耕和免耕+稻草覆盖的全氮流失量分别减少13.68%、39.59%,全磷流失量分别减少9.72%、27.57%。免耕栽培能提高烟叶产量、产值和化学成分协调性,并以免耕+稻草覆盖效益最好。增加收益5822.85元/hlTl2。研究表明,免耕、免耕+稻草覆盖对减少地表径流作用明显,是遏制土壤养分流失的有效途径;免耕+稻草覆盖增产增值明显,具有推广应用价值。关键词:耕作方式;免耕;稻草覆盖;养分流失;烤烟中图分类号:S157,$572文献标志码:A论文编号:
3、2014—0243EfectsofDiferentCultivationMethodsonSoilNutrientLosses,YieldandQualityofFlue。—curedTobaccoCaiYi,XiangJinyou,ChengZhimin,HuangSheng,YangPing,ZhangJiya,YangYide,XieBing2(’YibinAcademyofAgriculturalSciences,YibinSichuan644600;YibinTobaccoCompany,YibinSichuan644o0o)Abstract:In
4、ordertocontrolwaterandsoillossandmaximizetheyield—qualityofflue—curedtobacco,westudiedtheeffectsofthreecultivationmethods,includingconventionaltillage,no-tillage,no—tillageandstrawmulching,onthelossesofsoilwaterandnutrient,yieldandqualityofflue—curedtobacco.Theresultshowedthatno—ti
5、llage,no—tillageandstrawmulchingdecreasedthelossofsoilwaterthanconventionaltillage.Therunofwasreducedby9.54%and26.01%respectively.ThelossofN,Pnutrientswasdiferentamongtreatments,conventionaltillage>no—tillage>no—tillageandstrawmulching.Comparedwithconventionaltillage,thelossoftotal
6、nitrogenwas13.68%,39.59%,thelossoftotalphosphoruswas9.72%,27.57%respectively.Theyieldandquality,chemicalcompositionwereimprovedwithno—tillage.Thebenefitofno—tillageandstrawmulchingwas5822.85yuan/hmmorethanconventionaltillage.Studieshadshownthatno—tillage,no—tillageandstrawmulchingc
7、ouldefectivelydecreasesurfacerunof.Theywereefectivewaystoreducesoilnutrientsloss.No—tillageandstrawmulchinghadobviousyieldandvalueincreasingeffects,andhadhighextensionapplicationvalue.Keywords:cultivationmethod;no—-tillage;strawmulching;nutrientloss;flue—-curedtobacco0引言500-2000m的中
8、低山地占46.6%、丘陵占45.3%、平坝四川省宜宾
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