《邓州市耕地有效态硫元素丰缺状况分析、产生原因及应变对策》.pdf

《《邓州市耕地有效态硫元素丰缺状况分析、产生原因及应变对策》.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、AgriculturalScience＆Technology，2014，15(8)：1348-1350Copyright⑥2014，InformationInstituteofHAAS．AlrightsreservedSoiIandFertilizerAnalysisandProducingCausesofAvailableSulphurStatusquo(RichorInsufficient)inFarmlandsandCountermeasuresinDengzhouCityYouchengZHANGDengzhouAgriculturalTechnologyExtensionCent

2、er，Dengzhou474150，ChinaAbstractIntheresearch．availablesulphurin4700soiIsampleswastestedand邓州市耕地有效态硫元素丰缺analyzedin2006-2007InDengzhou．andtheresultsshowedthatavailablesulphur状况分析、产生原因及应变对策wasinsuficientinfarmlandsinDengzhouforcereaIcropandabout60％farmlandswithavailablesulphurbelongtothefarmlandswith

3、potentiaIsho~ageofavailable张有成(河南省邓州市农业技术推广中心，sulphurforCruciferae，LiliaceaeandLeguminosae．Meanwhile。theproducingcauses河南邓州474150)wereanalyzedfrOmtheperspectivesoffertilizationstructureandplantingstructureandthecountermeasureswereproposedintermsofsulphurmovementsinplants摘要该文通过对邓州市2006～2007连续andcha

4、racters．两年所分析的4700个土样有效硫(S)化验结KeywordsAvailablesulphur；S：Richorinsuficient；Countermeasures果整理分析发现，邓州市目前近30％耕地中有效态硫含量对禾谷类作物而言是缺乏的．有近60％的耕地中有效态硫含量对于种植十字花科、百合科、豆科等需硫较多的作物来说。属于ganicmatter，pHvalue，totaIN，avail-潜在缺硫耕地；同时从施肥结构、种植结构变化DesnoguzthhwoeusCtoityfHiselnoacnatPedrovinintchee。ableP，availableK，slow

5、·releaseK，详细分析了其产生的原因．并依据硫在植物体anditisatransitionzonefromavailableFe，Mn，Cu，ZnandBwere内移动状况、硫肥性状等因素提出相应对策。northernsubtropicstowarmtemper-analyzedandmeasured．Onthe2州关键词有效态；硫元素；丰缺；对策atezone．Thesoilscanbedividedintoyear。totaling2000soilsamplesweremoisturesoils，Shaiiangblacksoils，collectedjnthecityandtr

6、aceele—andyellowbrownsoils，whichcanbements，includingavailableS，Fe。Mn。furthereddividedinto5sub-cate-Cu，ZnandBweremeasuredandan．gories．11soilgeneraand42soilalyzedbasedonanalysisroutineele-species．Hence，wheat，maize，soy—ments．accordingtolocaIsoiItvpesbean．peanut。cottonandtobaccoareandtextures．with600t

7、ypicalsoiIsam—suitabletobeplanted．Inaddition．pies．Inthetwoyears．availableSofcroppingsystemisdominatedbydou。totaling4700soilsamplesweremea-ble‘‘croppingperyearortriple‘’crop‘。suredandanalyzed，coveringdiferentpingi