土壤日光輻射對保護(hù)地茄子黃萎病防治效果的研究.pdf

1、西北農(nóng)林科技大學(xué)碩士學(xué)位論文土壤日光輻射對保護(hù)地茄子黃萎病防治效果的研究姓名：雷玉明申請學(xué)位級別：碩士專業(yè)：農(nóng)業(yè)推廣指導(dǎo)教師：楊家榮劉賢德20041001STUDYoNEFFICACYOFSOILSoLARIZAnONTOEGGPLANTVerticilliumdahliaeINTHEPROTECTIVECU【TI、硝LTl0NABSTRACTEggplantisoneofthemaincultivationspeciesinglass

2、houseofNorthemregionofourcountryHowever，soilbomediseasesharmedseriouslytotheproductionofvegitableintheglasshouseInthelast，peopleoftenadaptedsomegeneralmethods，suchasimprovingcultivatedmethods、engraft、selectingresistantsp

3、ecies、chemicalcontrollingandsoon，butthosemethodshadmanydisadvantagesTherefore，inthispaperthemethodofsoilsolarizationtreatmentwasfirstusedtocontrolsoildiseaseintheprotectivecultivationforsolvingabovequestionsTheeggplantdi

4、seasethatwasstandingforotherallsoildiseaseswasstudiedbyisolatingpathogenTestingpathogenicity、testingbiologicalcharactariesintheroomandefficalyofthedifferentsoilsolarizationtreatmentsinthefieldTheresultswereasfollows：(1)T

5、heselectedmediaandmethodsthatwereusedtoisolatepathogenofcottonVerticilliumWiltwereusedsacceifullytoisolatethatofeggplantVerticilliumWilt，andsoilwet—sievingcouldincreasethenumberofpathogenmore46～96％thansoildilutionmethodI

6、twasfirstshowedthatthepathogenofeggplantVerticilliumWiltinHexievenGansupriventialwasⅣdahlae，butnotⅣalbo—atrurnAlso，thedistributionof礦dahlaeintheprotectivecultivationandinthefieldwassimilarTheleveldistributionwasaggregate

7、ddistributionButintheperpendicularasthedeptheofsoillayeradded，sclerotiumreducedPathogendistributemainlythefarminglayerfroml0cmto20cmAndthespatialdistributionofdiseasesinthegreenhousewasrelatedcloselytothespatialdistribut

8、ionofpathogen(2)ThefilmcoveredtreamentaffectsharplyonthetempretureofsoilTherangeoftempreturewasfrom135℃to1815℃Andthesinglefilmcouldincreasemore115～125℃thandoublefilmfrom0cmto10cm，from20cmto40cm，notonlysinglefilmbutaslodo

9、ublefilmhurdychangedthetempretureofsoilInaddition，asthedepthofsoillayerfrom0cmto40cmincreased，thewaterofsoilandsoilbulkdensitydecreasedsignificantly，butsoilporosity、alkalihydrolysisnitrogenandtheavailablephosphoruswerein

10、creasedtrendSaltofsoilintheprotectivecultivationreducedfrom10cmto20cm，butitvariedunsignficantlyfrom30cmto40cmPHofsurfacelayerfrom0emto20cmreduced0，78anditdidntchangefrom30cmto40cm(3)Withsoilsolarzationtreatmentthespecies