生物有机肥烘干温度与有效活菌数关系研究  

Connection of Drying Temperature and Number of Effective Strains Alive of Bio-organic Fertilizer

作　　者：隋文志[1] 刘文志[1] 赵晓锋[1] 田艳洪[1] 王北兰[2] 李鹏[1] 

机构地区：[1]黑龙江省农垦科学院农畜产品综合利用研究所,黑龙江佳木斯154007 [2]黑龙江省农垦科学院测试化验中心,黑龙江佳木斯154007

出　　处：《生物技术》2010年第4期82-83,共2页Biotechnology

基　　金：国家公益性行业基金项目("绿色农业科学研究与示范";2007-12-1);黑龙江省重大科技攻关项目("畜禽粪便生物处理及生物有机肥关键技术研究";GA07B501-5)资助

摘　　要：目的:研究生物有机肥生产中烘干温度对有效活菌数的影响。方法:采用室内模拟试验和生产试验相结合的方法,烘干温度为70℃、80℃和90℃,烘干时间为15min、20min、25min和30min,采用平板稀释法测定样品中的有效活菌数。结果:随着烘干温度的提高和烘干时间的延长,有效活菌数存活率降低,烘干温度为70℃～80℃,烘干时间在25min以内,有效活菌数存活率高。结论:生物有机肥烘干温度在80℃以下,烘干时间在25min以内,对有效活菌数存活率影响小,含水量能达到标准要求。Objective：The effect of drying temperature on the number of effective strains alive of bio-organic fertilizer with indoor simulation experiment and production experiment method were studied.Method：the drying temperature were 70℃,80℃ and 90℃,and the drying time were 15min,20min,25min and 30min,examined the number of effective strains alive with conventional microorganism separation and purification method.Result：The number of effective strains alive reduced with raising drying temperature and protracting drying time.Drying temperature under 80℃ and drying time less than 25min had little effect on the number of effective strains alive and the moisture of bio-organic fertilizer satisfied the request of stander,especially drying temperature between 70℃ and 80℃ and drying time less than 25min.

关 键 词：生物有机肥 烘干温度 烘干时间 有效活菌数 

分 类 号：Q939.96[生物学—微生物学]