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1、本科生毕业论文题目：岩棉块持水量对番茄幼苗生长的影响学院：园艺学院专业班级：设施农业科学与工程11-4班学号：1119106111学生姓名：指导老师：撰写日期：2015年05月岩棉块持水量对番茄幼苗生长的影响摘要:随着次生盐渍化，连作障碍，土壤土壤酸化等一系列问题日益严重，耕地资源利用水平低，开发利用不平衡，损害严重，人地矛盾日趋严重，无土栽培是无疑很好的方向。岩棉栽培以其独有的特性，更是受到人们的青睐。本试验的研究有助于国内岩棉栽培水分精确化管理的实现、无土栽培技术的进一步完善、番茄产业国际竞争能力的提升，等。试验以番茄幼苗为材料，在日光温室条件下，研究了(A)岩棉块最大持
2、水量的30%，(B)岩棉块最大持水量的40%，(C)岩棉块最大持水量的50%，(D)岩棉块最大持水量的60%，四个不同水平持水量对番茄幼苗株高、茎粗、鲜重、干重的影响，并在此基础上得到了岩棉栽培园艺作物幼苗期岩棉块持水量的下线。实验结果表明：岩棉块持水量为最大持水量的50%、60%较30%、40%，可显著提高株高及地上部的干鲜重；岩棉栽培幼苗期岩棉持水量下线为最大持水量的50%。关键词：岩棉块；持水量；番茄EffectofwatercapacityofrockwoolblockonthegrowthoftomatoseedlingsRenmaofeiAbstract：Asas
3、eriesofsoilproblemsuchasthesecondarysalinization,continuouscroppingobstacle,soilacidificationproblemincreasinglyserious,thelowlevelofcultivatedlandresourceutilization,developmentandutilizationofimbalance,damageisserious,theincreasinglyseriouscontradictionbetweenhumanandland,soillesscultivat
4、ionisaverygooddirection.rockwoolculturemorecultivatedhasitsuniquefeature,getthefavourofpeople.Thisexperimentresearchhelpstherealizationofthedomesticwaterrockwoolcultureaccuratemanagement,furtherimprovingsoillesscultivationtechnology,tomatoindustryinternationalcompetitiveabilityofascension,a
5、ndsoon.Usingtomatoseedlingsasthetestmaterial,theywereplantundertheconditionofthegreenhouse.Theeffectwaterretainingcapacityofdifferentkindsoflargestwaterretainingcapacityofrockwoolblockonmorphologicalindicesandqualityoftomatowasinvestigatedbysettingfourdifferentlevels：30%oflargestwaterretain
6、ingcapacityofrockwoolblockin(A),40%oflargestwaterretainingcapacityofrockwoolblockin(B),50%oflargestwaterretainingcapacityofrockwoolblockin(C),60%oflargestwaterretainingcapacityofrockwoolblockin(D).dressingbyscreening,Suitablewaterretainingcapacityofrockwoolculturehorticulturalcropseedlingst
7、age.Theresultsshowedthat:Rockwoolblockwatercapacityformaximummoisturecapacity50%,60%than30%,40%cansignificantlyincreasetheplantheightandabovegroundfreshweightmorethan50%oflargestwaterretainingcapacityofrockwoolblockinfavourofthegrowthoftomatoseedlings.Ke
