施肥對優(yōu)質(zhì)早秈稻產(chǎn)量和品質(zhì)的影響.pdf

1、江西農(nóng)業(yè)大學碩士學位論文施肥對優(yōu)質(zhì)早秈稻產(chǎn)量和品質(zhì)的影響姓名：吳自明申請學位級別：碩士專業(yè)：作物栽培學與耕作學指導教師：石慶華2003.6.1Abstracts：Inordortesolvecontradictionbetweenthehighyieldandhighqualityearlyrice，duringthepastthreeyears，studiesonfertilizerdemandrulesofhighquailtyea

2、rlyricehavebeendoneIn2000，someexperienceontheNandKnutrients’effectonquailtyandyieldofhighqualityearlyriceGanzaoxian48wasmadeatLuxicoufltytheresultSshows：Thericeatthetreatwhichitsnitrogen(150kg／hm‘)isappliedwithpotassium(

3、135kg／hm2)growstableandhealthilyatearlystage，theplantpopulationisappropriateandpanicledevelopwell，Theyieldis931l／hmzGrindingqualitiesunderthetreat[nitrogen(150kg／hmz)andpotassium(135kg／hm2)】arebeHerthanthoseofothertreats

4、，F(xiàn)orexample，milledricerecoveryrate、headricerateandproteincontentare7277％、5703％and814％respectivelySeasonablefertilizationwithnitrogenandpotassiumisoneofthetechniquesonquailtyandhighyieldofhighquailtyriceatPinxiangareaBase

5、dontheexperienceof2000，aplottrialwasconductedbyusinghighquailtyearlyriceXiangliangyou68duringthewholegrowthperiodatLuxiin2001TherearenofertilizersexceptbioorganicfertilizerBBfertilizerUreaKclCaMgPThreefertilizationmethod

6、swereusedflTotalbasalpressingtowholeploughlayer；2，Usingbasalfertilizerinthewholeploughlayerandaddingpaniclefertilizeratlatestage；3，Traditionalsplitfertilizationmethod)Resultsshow：Ricegrowrapidlyandmuchdrymatteraccumulate

7、dbyusingthefirstandsecondfertilizationmethod，EspeciallytheRiceofT5growstablyaswellasstronglyandhavenormalnutrition，evellLAIdecreaseslowlyatlatestageMeanwhile。nalsohaslargenutritionuptake，useefficieneyoffertilizernutrient

8、andgrainyieldinthesameconditionInaddition，100噸rainsweightandrateofeffectivepaniclewereimprovedTherearemuchdifferencebycomparingT2、T5withothertreatsTheresuItsofstatisticsindicatetheuseofmixingbioorganicfertilizerandchemic

9、alfertilizerastotalbasalpressingt0wholeploughlayercanincreaseyield，ParticularlyaddingsomeNitrogenfertilizeratlatestagehasbettereffects，meanwhile，thericequalityalsocanbeimprovedFromthelasttwoyears’expedencethelowEarbearin

10、gTillerpercentageisconsideredasthekeylimitedfactortotheyieldofthehighquailtyearlyriceMoreexperimentsweremadeintheAgronomyResearchStationofJiangxiA鰣culturalUniversityTheseExperimentsareaboutdi鐫renttimeoffertilizerapplicat

11、ionandplantingdensity’seffectonearbearingtillerpercentageandpopulationquailtyinhighquailtyearlyriceJingyouF6Theresultsshow：underthecombination～Tg(A382)ofplantingdensity(231xt32cmlandNitrogenratio(basefertilizer：accelerat

12、ingtillerfertilizer：acceleratingflowerfertilizer：preservingflowerfertilizer4：24：12：24)’plantsgrowquicklyandhealthyatearlystage，theeffectivetillersisappropriateandtheearbearingtillerpercentagehavebeenimproved，LAIanddrymat

13、teraccumulationincreasereasonably；atlaterstage，itcanassureenoughfunctionalleaves，Yieldsunderthiscombinationreachtop，exceedingby673％and742％comparedwithsameplantingdensitytreats(T7、T9)，andby1222％and13，90％withsametimeoffert

14、ilizerapplicationtreats(T2、TS)ThepopulationwhosetillerincreaserapidlyanddiminishslowlyhavehighearbearingpercentageThereisanegativerelationbetweenearbeadngpercentageandthediminishedrateofleafarea111epopulationwithhighearb

15、earingpercentagehavelargesingleplantweightatbootingstageandstoremuchdrymatteratbothdifferentiationandbootingstageOntheconditionofsimilarpanicles，thepopulationwhosetillerpaniclesoverwhelmingcangethighyieldKeyword：Highquai