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1、萬方數(shù)據(jù)安徽農(nóng)業(yè)科學(xué),JournalofAnhuiAgri.Sei.2009.37(2):4-57—458.462責(zé)任編輯??∠阖?zé)任校對李洪添加木醋對木屑發(fā)酵腐熟的影響吳曉春1,謝兆森2(1.上海應(yīng)用與技術(shù)學(xué)院生態(tài)技術(shù)與工程學(xué)院,上海200235;2.上海交通大學(xué)農(nóng)業(yè)與生物學(xué)院.上海200240)摘要[目的]研究木醋液對木屑發(fā)酵腐熟各指標(biāo)的影響。[方法]以未屑為試材,對其噴灑清水(CK)和500倍木醋液,研究木醋液對木屑發(fā)酵溫度、物理性質(zhì)變化、pH值、Ec值和粒徑的影響。[結(jié)果]添加木醋后,未屑的發(fā)酵溫度明顯提高,最高溫度為67.O℃,比對照高3.5℃,發(fā)酵
2、溫度大于55屯的天數(shù)達(dá)到57d,比對照多40d;添加木醋后,木屑的容重、持水空隙度和總空隙度腐熟前后均高于對照,pH值和Ec值均低于對照,粒徑<0.5Film的木屑所占比重高于對照,粒徑為0.5~1.0mm和>1.0姍的木屑所占比重均低于對照。[結(jié)論l低濃度木醋液可加快木屑腐熟,改善廟熟后木屑的粒徑組成和理化性狀。關(guān)鍵詞木醋:木屑;發(fā)酵:腐熟度中圖分類號s188文獻(xiàn)標(biāo)識碼A文章編號0517—661I(2009)02—00457—02EffectsofWoodVinegarsAdditionOnFermentstionandMaturityofSawdustW
3、UXiao-chunetal(SchoolofEcologicalTechnologyandEngineering,ShanghaiInstituteofTechnology,Shanshai200235)Abstract『Obiective『TheI屯zearchwastOstudytheeffectsofwoodvinegarOilfermentationandmaturityindexesofsawdust.1MethodWithsawdustasthetestedmaterial.tIleclearwater(CK)and500timesofwood
4、vinegarweresprayedonittostudytheeriectsofwoodvine·garsonitsfermentationtemperature,physicalpropertieschanges,pHandECvalueandparticlesize.[Result]Afteradditionofwoodvine—gar,thefermentationtemperatureofsawdustWasobviouslyincreased,andthehighesttemperaturereached67.0℃,being3.5℃higher
5、thanthatofCK。andthedayswhenfermentationtemperaturewasabove55ocreached57d,being40dmorethanthatofCK.Afteradditionofwoodvinegars。thebulkdensity,water-holdingvoidageandtotalvoidageofsawdustbeforeandaftermaturitywereallhigherthanthatofCK,pHvalueandECvaluewerea11lowerthanthatofCK.a(chǎn)ndthep
6、roportionofsawdustwhoseparticlesizewassmallerthan0.5millwashigherthanthatofCK.a(chǎn)ndthatofsawdustwhoseparticlesizeWas0.5一1.0mmandbiggerthan1.0mmwerelowerthanthatofCK.1ConclusionJThewoodvinegarswithlowerconcn.couldacceleratematurityofsawdustandimprovethecompositionofparticlesizeandphys
7、icochemicalcharactersofsawdustaftermaturity.KeywordsWcodvinegars:Sawdust;Fermentation:Maturity木屑作為一種工業(yè)廢料,來源廣泛,價格低廉,具有較好的保水性、生理酸性和通氣性。新鮮木屑必須經(jīng)腐熟后才能使用,腐熟后木屑的有機(jī)質(zhì)含量提高,纖維素含量降低,有利于營養(yǎng)元素的釋放與保持。木醋的主要成分為有機(jī)酸和酚類,相關(guān)研究表明,土壤中施入一定量的木醋可促進(jìn)微生物繁殖,增加土壤微生物數(shù)量和有機(jī)質(zhì)含量¨。20。但目前有關(guān)木醋對木屑發(fā)酵腐熟的影響研究較少。鑒于此,筆者研究木醋對木屑發(fā)
8、酵腐熟各指標(biāo)的影響,以期為木屑和有機(jī)肥腐熟發(fā)酵提供指