Experimental Research on Suitable Drip Irrigation Schedule for Tomato.pdf

1、河海大學(xué)碩士學(xué)位論文EXPERIMENTALRESEARCHONSUITABLEDRIPIRRIGATIONSCHEDULEFTOMATO姓名：TRANTHAIHUNG申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：@指導(dǎo)教師：XINGWENGANG20080101ABSTRACTD郵Irrigati咖TechniqueisabasicfbmlofwaterSavingITrigation1tisspec訊cofusualsupplyof1imitedwate

2、ramountandcontmlledtoi而gateapartofcultjvatedsoillayertoutjlizewateri州gationoptimallyPreViousresearchesof捫pi而gationtechniqueingreenhousewcrenotpaidmuchattentionindctailedcalculatingandresearching0nsuitablescheduleas印propr

3、iate“pi耐gation行equencyandwaterarn叫ntbyeachgrDwingstageTheexp州mentalresearchonsujtab】edripiⅢgatjonschedulefortomatowascarriedoutintheGreenhouse10catedinWaterSavingParkofJiaIlgningCampus，Hohaiunjversity，Nanjing，chinafromFe

4、bmarytoJuly，2007tocontributeinaSsessingtheeffectof嘶pirrigationtechniqueforwatcrutilization，devel叩mentandpmductivityofcr叩sespeciallytofindsui協(xié)ble嘶pirrig“onschedulefortomatobygrowingstagesTheexperimenta】modelofdripirri鼬【ti

5、onf研tomatowasdesignedwiththreei—ga“onfrcquencies(irrigaljonimenrals2dayS，3days，4days)andthreeleVelsofwater鋤ount(ev叩otmnspiration80％，l00％，120％)bydailyfieldexperimentmeasurcmentsintheGreenhouseD^pi甘igationwatcramountfortom

6、atowascalculatedusingPenmanmethodbasedonevapotraIlspirationchangebydailyevaporationmeasurementresultsateach鏟owingstageMeasurememresultsoftemperature，humidity，evaporationandphysicalmorphologyoftomatohelpedcalculateanddeci

7、desuitableirrigationwater鋤ountaccordingtealweatherconditionsandcropgrowingstagesResultsofexp嘶mentalmodelshowedthatdripirrigationhasmadethe陀alef詫ctfordevelopmentprocessasfollows：with幽pjmgationtechnique，averagehei曲toftomat

8、owasfbm172cm(Blocks6and7)to181cm(Block5)，】eafandtreebodygrewveryfast：floweringfmitsandharvesttimeoftomatowasfasterandshorterFlowersandfhitsdevelopedratherequally；tomatoproductiVjtyachieVedhi曲yieldfrom77423to92672ton／haWi

9、thtraditionali州gationmethod。a11tomatocomponentresultswerelessthallthoseonesinnine仃eatmentblockstotalyieldonlvachieved53677ton／haWatersavingshowedclearlythatdripirrigationtechniquesavedverymuchofwaterincomparisonwithtradi

10、tionalimgationmethod(Highwater1evel：83378355％，mediumone：7150—7165％，lowone：5963—5975％incomparjsonwithtraditionalmethod：100％1SuⅣe撕ngperfb珊anceofinfiltrationdynamicsandsoilmoistureofdripi而gationtechniquehaspmposedrelationsh

11、ipsofpammetersasi而gationwateramount，wettingareadiametcr伽theground，in矗ltrationdepthandtimeCalculatedandanalVzedresultsofnjnetreatmemblocksshowedthatthetreatmentwith3dayfrequencyandmediumwater1evelachjevedthehighestvield，w

12、hilethe仃eatmentwith3dayf沁quencyandlowwaterlevelachievedthehighestwateruseefnciency，thesecondyieldTreatnlentwith2dayfkquencya11dlowwaterleveiachievedthethird塒ejdandthesecondwaterusee娟ciencyFrommeasuredandanalyzedresultsof

13、tomatogrowthaswellasi州gationwaterrequirement，treamlentBb(B10ck5)waSseenasthemostsuitableTheirTigatjonscheduleisestabIishedwith3一dayfiequencyandmediumwaterleveltoseⅣeag“culturalpmductiondevelopmentandtoperfomlspeci6cresea