欢迎来到天天文库
浏览记录
ID:52220939
大小:375.54 KB
页数:6页
时间:2020-03-25
《猪粪比例对烟草废弃物高温堆肥腐熟进程的影响.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、农业环境科学学报2010,29(4):779—784JournalofAgro—EnvironmentScience猪粪比例对烟草废弃物高温堆肥腐熟进程的影响竹江良,汤利,刘晓琳,李少明,高文林,李海山(云南农业大学资源与环境学院,昆明650201)摘要:以烟草废弃物为基本原料进行堆肥试验,研究了不同比例猪粪与烟草废弃物混合堆肥体系中温度、pH、全氮、C/N比、水溶性N磁一N和种子发芽指数(GI,germinationindex)的动态变化规律,探讨了不同猪粪比例对烟草废弃物高温堆肥腐熟进程的影响。结果表明,在烟草废弃物中加入猪粪能缩短进
2、入高温分解阶段的时间,增加高温分解持续时间,增加全氮含量,加快物料N彤一N和C/N比降低的速率,加快烟草废弃物堆肥腐熟化进程。添加一定比例猪粪的处理(烟草废弃物:猪粪=7:3、烟草废弃物:猪粪=8:2和烟草废弃物:猪粪=9:1),分别在堆肥第3、4、5d进入高温分解阶段(>50℃),高温持续时间分别为11、10、8d;而纯烟草废弃物处理,最高温度为43℃,未进入高温分解阶段;至堆肥26d,N叫一N含量分别比纯烟草废弃物对照降低47.7%、61.9%和25.6%;G1分别达到81.4%、84.1%和83.7%。关键词:烟草废弃物;猪粪;堆肥
3、;腐熟进程中图分类号:S141.4文献标志码:A文章编号:1672—2043(2010)04—0779—06EffectofSwineManureonHigh-TemperatureCompostMaturityofTobaccoFineWasteZHUJiang-liang,TANGLi,LIUXiao-lin,LIShao-ming,GAOWen一1in,LIHai—shan(CollegeofResourcesandEnvironmentalScience,YunnanAgriculturalUniversity,Kunming65
4、0201,China)Abstract:Swinemanurecontainshighcontentofnitrogen,whichisacheapandgoodnitrogensource.Hightemperatureeompostingexperi—mentswerecarriedouttoevaluatetheeffectofswinemanureontobaccofinewasteeomposfingprocessesandmaturityanditsoptimalformulaforthecompost.Theexperime
5、ntdesignconsistedof4treatmentswith10:0,9:1,8:2and7:3ratiooftobaccofinewasteandswinemanure.Thedynamicalchangesoftemperature,thecontentsoftotal—nitrogen(T—N)andwater—solubleammonium(NH2一N),carbon(C)/Nratio,seedgerminationindex(GI)inthecompostingprocessofthedifferentcomposti
6、ngtreatmentsweremeasuredperiodically.Theresultsshowedthataddingswinemanureshortenedthetimeofreachinghightemperature(>50oC)andextendedthehightemperaturesustainingtime;increasedtotal-NandGI,acceleratedthereductionrateofNHT-N,C/Nratioandthecompostingprocessandmaturity.Thehig
7、hesttemperatureswere43oCand58oC,60oC,52oCinpuretobaccofinecompostandthecompostwithswinemanuretreatments,respectively.netimesofreachinghightemperature(>50oC)inthecomposttreatmentsofaddingswinemanure(9:l-7:3ratio)were3d,4dand5d,respectivelyandthehightemperaturedecomposingdu
8、rationswere1d,10dand8d,respectively.After26days,theNHj—Ncontentsinthecomposttreatmentswithswinem
此文档下载收益归作者所有