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1、TheResearchonSugarcaneMicroJetEffectsunderPlasticFilmChenYong(CollegeofAgriculture,GuangxiUniversity,Nanning530004,China)AbstractDroughtandwatershortagehasbecomeamajorfactorrestrictingthedevelopmentofsugarcaneproductioninGuangxiareas,inordertosolvethis
2、problemeffectively,developonenewkindsugarcaneplantingirrigationmodewhichcansavewaterandmoney,havehighefficiencyandhighproductionisparticularlynecessary.Used“Yuetang60”astestedcultivarstoconductresearchineffectofmicrojetunderthefilmonsugarcane,whichthet
3、estwerecarriedoutinTestbaseofAgriculturalCollege,GuangxiUniversity,at2013.Thetestcarriedoutfourtreatmentswithrandomizedblockdesign,treatmentA:nofilmscoveredandnosprinkling(CK);treatmentB:nofilmscoveredandmicrojet;treatmentC:coveredwithphotolysisfilmsan
4、dmicrojet;treatmentD:coveredwithordinaryblackfilmsandmicrojet.Soilphysicalandchemicalproperties,leafnutritionalstatus,moisturevariation,leafphysiologicaltraits,droughtresistance,agronomictraitsphotosyntheticcharacteristics,yieldandprocessquality,econom
5、icefficiencyandsoonweretestedforstudyingtheeffectsofmicrojet.Thestudyresultslikethis:1、ThesoilpHandthebulkdensityofcoveredwithfilmswerelowerthannofilmscovered,whilethesoilnutrients,porosity,soilmoisture,leafwatercontent,yieldandsugarcontentofcoveredwit
6、hfilmswerehigherthannofilmscovered.Itcouldbeconcludedthatcoveredwithfilmscouldbeimprovedthesoilphysicalstructure,improvedfertilizeruseefficiency,enhanceddroughtresistance,increasedsugarcanequality,yieldandsugarcontent.2、Thesinglestemweight,stalknumber,
7、yield,sucroseofmicrojetcombinedwithnocoveredfilmswerehigherthanCK.Itcouldbeconcludedthatmicro-sprinklercouldincreasethesugarcaneyieldandsugarcontentsignificantly.II3、Coveredwithblackfilmswerebetterthancoveredwithphotolysisfilmsinkeepingthesoilphysicals
8、tructure,fertilizeruseefficiency,waterconservationanddroughtresistance,photosynthesis,plantheight,stemdiameter,singlestalkweight,sucroseandsoon.Another,coveredwithphotolysisfilmscameouttobebetterthancoveredblackfilmsinaspectsofcanegermi
