膜下小苗移栽对烤烟生长发育及产质量的影响

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1、膜下小苗移栽对烤烟生长发育及产质量的影响李建芬李丽华马君红董昆乐苗圃叶红朝赵世民江凯王炜洛阳市烟草公司汝阳县分公司河南省烟草公司洛阳市公司［目的］研究膜下小苗移栽对烤烟生长发育及产质量的影响。［方法］开展不同移栽期膜下小苗移栽与常规移栽对比试验，记载分析各小区烟株生长发育和产质指标。［结果］4月25日膜下小苗移栽提高了烟株移栽成活率，花叶病相对防效提高了60.95%，黑胫病相对防效提高了51.61%;增强了田间长势和抗病性，大田牛.育期缩短，终采期提前，能有效避开大田后期的低温多雨;膜下小苗移栽方式能减少烟叶烟碱和对烟叶质量不利的氯

2、离子含量，提高烟叶钾含量，有利于烟叶化学成分的协调和内在品质的提高;在产量与品质方面，4月25口移栽的烤烟均价和产值最高，经济性状表现出明显的优势。移栽苗龄较小的处理T1移栽成活率有所降低，各经济性状略低于CK，说明小苗移栽尽管有利于生育期提前，能避开前期干旱和后期低温冷害的影响，但不是越早越好。［结论］豫丙烟区4月25日膜下小苗移栽较为适宜。关键词：小苗;膜下移栽;烤烟;生长发育;产质量;基金：洛阳市烟草公司科技计划项目(LY201421)EffectofTransplantingTobaccoSeedlingsunderPlas

3、ticFilmonTobaccoGrowthandProductionandQualityLIJian-fenLILi_huaMAJun-hongLuoyangTobaccoCompaniesRuyangCountyBranch;LuoyangBranch，HenanTobaccoCompany;Abstract：[Objective]Tostudytheeffectoftransplantingtobaccoseedlingsunderplasticfilmontobaccogrowthandproductionandqualit

4、y.[Method]Acomparativeexperimentoftransplantingseedlingandconventionaltransplantingunderdifferenttransplantingperiodwascarriedout，thegrowthanddevelopmentoftobaccoplantsandtheirqualityindexeswereanalyzed.[Result]Thesurvivalrateofthetobaccoplantwasincreasedbythesmallseed

5、lingtransplantingonApril25.Theanti-effectofthemosaicdiseaseincreasedby60.95%，andthepreventionoftheblacktibiaincreasedby51.61%.Thefieldgrowthanddiseaseresistancewereenhanced,thegrowthperiodofthefieldwasshortenedandthefinalharvestwasadvanced,itcaneffectivelyavoidthelowte

6、mperatureanclraininthelatefields.Submembraneseedlingtransplantingmethodcanreducethecontentofnicotinicandchlorideion,increasethepotassiumcontentoftobaccoleaf，itwasconducivetotheimprovementofthecoordinationandintrinsicqualityofthechemicalcompositionoftobaccoleaf.Intermso

7、fyieldandquality,theaveragepriceandoutputvalueofthetobaccoonApril25wasthehighest,economictraitsshowedobviousadvantages,thesurvivalrateofT1transplantingwasreduced,theeconomictraitswereslightlylowerthanCK.Ttwassuggestedthatseedlingtransplantingmaybebeneficialtotheearlyst

8、ageofgrowth,itcanavoidtheeffectsofearlydroughtandlatercold,butnotthesoonerthebetter.[Conclusion]Itwasappropriatetotra