有機-無機復(fù)混肥對蔬菜的作用效果與機理研究.pdf

1、湖南農(nóng)業(yè)大學(xué)碩士學(xué)位論文有機無機復(fù)混肥對蔬菜的作用效果與機理研究姓名：范美蓉申請學(xué)位級別：碩士專業(yè)：植物營養(yǎng)學(xué)指導(dǎo)教師：劉強榮湘民20050601OrganicInorganBenefitMixedFertilizerEffectsonPhysiolog尾calMechanismofVegetablecropsInorderfordevelopmentandextensionoforganicinorganicmixedfertiliz

2、erforvegetablecropsthepaperdealswiththeefectsoforganicinorganicmixedfertilizeronthephotosyntheticcharacteristickeyenzymes(suchassucrosesynthasesucrosephosphatesynthaseandnitratereductase)ofcarbonnitrogenmetabolismyieldsa

3、ndquality(suchasthecontentofvitaminCsolublesugarnitrateinferiornitratecoarsefibredandaminoacids)oflettuceandPakchoiusingfieldplotexperimentonthebasisofthepastexperments.Themainresultswerereportedasfollows:1.Organicinorga

4、nicmixedfertilizercouldincreasethecontentofchlorophyllandnet燦otosyntheticrateinthefunctionleavesduringmiddleandlategrowthstagesoflettuceandPakchoi.2.Organicinorganicmixedfertilizercouldsignificantlyenhancetheactivitiesof

5、sucrosesynthase(SS)andsucrosephosphatesynthase(SPS)andnitratereductase(NR)inthefunctionleavesduringmiddleandlategrowthstagesoflettuceandPakchoiascomparedtothetreatmentsofchemicalfertilizerandfarmerfertilizationpractice.3

6、.OrganicinorganicmixedfertilizercouldpromotethegrowthandincreasetheyieldsoflettuceandPakchoi.Thelettuceyieldofthetreatmentwithorganicinorganicmixedfertilizerwasincreasedby12.56%and5.30%ascomparedtothetreatmentwithchemica

7、lfertilizerandfarmerfertilizationpractice.respectively.TherewasnotsignificantdiferenceforPakchoiyieldbetweenthetreatmentswithorganicinorganicmixedfertilizerandfarmerfertilizationpracticewhiletherewassignificantat1%levelb

8、etweenthetreatmentswithorganicinorganicmixedfertilizerandchemicalfertilizer.Netincomesandoutputinputratiofromthetreatmentoforganicinorganicmixedfertilizerwasthehighestamongthreetreatments.Organicinorganicmixedfertilizerc