石粉對(duì)泥炭pH值的調(diào)節(jié)及其對(duì)幾種盆花生長(zhǎng)發(fā)育的影響.pdf

1、華中農(nóng)業(yè)大學(xué)碩士學(xué)位論文石粉對(duì)泥炭pH值的調(diào)節(jié)及其對(duì)幾種盆花生長(zhǎng)發(fā)育的影響姓名：丁萌申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：農(nóng)業(yè)推廣園藝指導(dǎo)教師：王彩云20081201ABSTRACTInthepaperweobservedthechangeofmedium—pHandtherelationshipbetweenpHanddolomitepowdercontentThenewmethodofadjustingmedium—pHwasexploredby

2、inputtingdolomitepowderofdifferentcontentsinthemediumbasedonpeatBasedonit，theacid—basepropertyofculturemediumwasresearchedandadjustedoffourcommonflowers：Dahliahybrida，Tageteserecta，Celosiacristata，BegoniahiemalisTheaimWa

3、stooffertheoreticalargumentforregulatingthegrowthofflowersandbloomingdateTheseresultsindicatedthat：1ThechangerulewasbasicallythesamedespiteofdifferenttheinputingdolomitepowderbuttheelevatoryamplitudeofpHwasdifferentThemo

4、redolomitepowderwasinput，themoretheelevatoryamplitudeofpHwas，thefastertheelevatoryspeedofpHwasThemostrapidincreaseinpHoccurredinthefirstfivedaysofincubation，especiallyinthefirsttwodaysIngeneral，pHreachednearequilibriumva

5、lueswithinfifteendays，althoughpHcontinuedtoincreaseslightlythereafter2Comparedwiththecontrolofno—inputingdolomitepowder(treatmentA，pHvalueoftheinitial503)thetreatmentofinputingdolomitepowderincreasedtheovergroundplantbio

6、massofflowerInplantingDahliahybrida，wecouldadequatlyregulatepHtosubacidityenviroment(pHvalueof638)，whichcouldassureplantgoodgrowthMediumpHhadlessinfluenceonthegrowthofTageteserecta，andTageteserectacouldgrowwellinalkalsce

7、ncetoneutralityenvironment(pHvalueof695)AftertreatmentofdolomitepowderCelosiacristataundergonethegreatchange，whichshowedthatCelosiacristatawassensitivetomedium—pHBegoniahiemaliscouldgrowwellinsli曲flyacidenvironmentcondit

8、ions，andthetreatmentA(pHvalueof543)，WasthebestonefortheirvegetativegrowthamongalltreatmenrsSlighflyacidmediumcouldimprovethequalityoftheflowersobviouslyseenfromthetwotargetsofflowernumbersandflowerdiameter3Becauseofthedi