駐馬店主要煙區(qū)土壤養(yǎng)分豐缺狀況分析及施肥效應(yīng)研究.pdf

1、河南農(nóng)業(yè)大學(xué)碩士學(xué)位論文駐馬店主要煙區(qū)土壤養(yǎng)分豐缺狀況分析及施肥效應(yīng)研究姓名：張常興申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：農(nóng)業(yè)推廣煙草學(xué)指導(dǎo)教師：符云鵬馬聰20090501AnalysisofSoilNutritionStatusinZhunadianTobaccoGrowingRegionandEffectsofFertilizerApplicationinFluecuredTobaccoPlantsSupervisor：FuYunpengMast

2、erCandidate：ZhangChangxmgAbstract：111enutrentstatusofmaintobaccogrowingsoftinZhumadianregionwereanalysedTheeffectsofthemainmineralnutritionelementsongrowth，yieldandqualityofnllealredtobac加underfieldexpenmentionsTheresult

3、sisasfollows：1ThesoilpHofQueshancountywasinproperrange，thatofBiyangCountywashigherthanQuesbancountybutitWasbasicproperforgrowingtobacco3846％soilsamplesinBiyangCountyand6375％soilsamplesinQueshanCountywerelowinorganicmatte

4、r(12％)Mostofthemwerelowtomediuminavailphosphorus，andlowtolackinpotassiumintwoCountiesAlittleofsoilswerehilghinratioofexchangeableealiumtoexchangeablemagnesium，maybecausedlackingofmagnesiumoftobaccoplantsTheywererichinava

5、ilcuprum，lowinexchangeablemanganese，lowtolackinavailzincandavailboronThesoilsinBiyangCountywerehigherinwatersolubilitychlorineTherefororganicfertilizershouldbeappliedrateofnitrogenwasmoderaterateofphosphorusandpotassiumf

6、ertilizershouldbeincreasedproperlyandzinc，boron，manganeseandmagnesiumreplenishedproperlytoimprovedthegrowthoftobaccoplantsandyieldsandqualityoftobaeeoleavesinZhumadianmaintobaccogrowinga∞e勰2Applyingnitrogen，pgosphrousorp

7、otassiumoranytwokindsofthemwerepromotedthegrowthoffluecuredtobaccoplants，increasedtheyieldandqualityoftobaccoleaves，especiallytheimpactsofnitrogenfertilizerontheyieldandqualityoffluecuredtobaccoleaveswerethelargestTheeff

8、ectsofcombinationapplyingofnitrogenandphosphrousornitrogenandpotassiumwerebetterthanthoseofanyoneelementapplyingaloneofthemandcombinationapplyingofphosphrousandpotassiumInparticulartheproportionsinfluecuredtobaccoleavesc

9、hemicalcomponentswerewellcoordinatedbycombinationapplyingofnitrogenphosphrous，andpotassiuminacertainratioThatcomplainedtheapplyingfertilizerbalancelyWasimportantme組suretopromotingthegrowthoffluecuredtobaccoplantsandincre