覆膜交替溝灌條件下梨樹生長及其水分高效利用的試驗研究.pdf

1、中國農業(yè)大學碩士學位論文覆膜交替溝灌條件下梨樹生長及其水分高效利用的試驗研究姓名：武亨飛申請學位級別：碩士專業(yè)：農業(yè)水土工程指導教師：黃興法20070601AbstractStudiesunderthedifferentsoiltextureconditionswitlltheappropriatealternateirrigationfUIIOWsizewillnotonlyenhancetheyieldandthequalityof

2、thefruit，butalsomayexplorethebestmoistpatternofthepeartrec，andenhancethewatermeffieieney(WUE)TheirrigationmethodtheirrigationflIlTOWsizeandthedifferentsoiltexturesWCIethetechnicalparametersofthisexperimentneexperimentnea

3、lmcntsconsistedofdifferentfurrowwidthanddepthThewidthofirrigationfllITOWwas30em40emrespectivelyandthedepthwas20em30erarespectivelyThetraditionalfloodingirrigationWaSsetasCheckoneTwokindsofthesoiltcxt_lltewereusedintheexp

4、erimentThefUlTOWsizeofTreatmentl(T1)w∞20emofdepthand30emofwkhhwhileTreatment2(T2)20eraofdepthand40eraofwidthTreatment3(T3)30emofdepthand30eraof謝d妣Treatment4(r4)30emofdepthand40eraofwidthTheexperimentresultsshowedasfollow

5、s1)ThesametreallnentwithdifferentsoiltcxtllrcsleadstodifferentirrigationwatervolumeTheirrigationwatervolumeunderconditionofsandysoilWaSmolethanthatunderthe10mconditionBothirrigationwatervolumeandirrigationtimeincreasewit

6、htheincreaseofditchsize2)TheCheck(cK)onew∞thehighestintheyieldandthebestinfruitqualityofthepearundertheconditionofsandysoilButfromthewatersavingpointsofviewtheWUEinCKWaSWOISethanthatinothertreatments，WUEin1“3wasthebest，i

7、tsyieldw船lessthanCKbutmorethanothertreatmentsThefruit掣IalityinT3WaSonlyalitllelCS$thanthatin1“2whoseqtmlityw∞thebestSotheidealtlcatmcntwas13undertheconditionofsandysoil；3)Inloam，thehighestyieldwasfromT3111ebestqualitywas

8、fromCKbutitsyieldWaSmolelessthanotherIreallllelltltTheyieldinCKWasonly75％ofthatinT3，anditsirrigationwatervolumeandirrigationtimewereIIIOIethanothertreatments，whichledtolowlaboreflfiei∞eywastingwatertcsourcc8andlowingWIrE