添加风化煤对蘑菇渣牛粪堆肥的影响  

Influence of Applying Weathered Coal on Transformation Substance of Spent Mushroom and Cow Manure Composting

作　　者：孙志华[1] 张金水[1] 同延安[1] 马海洋[1] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100

出　　处：《西北农业学报》2012年第2期162-166,共5页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家科技支撑计划项目(2006BAD05B07)

摘　　要：为研究风化煤的添加对菇渣牛粪堆肥的影响,找出合适的添加比例,添加质量分数分别为0、10%和20%的风化煤进行牛粪菇渣堆肥试验,对堆肥过程中温度、水分、pH、C/N等测定分析。结果显示,加入10%风化煤处理,堆体温度62h内即达到50℃以上,比不添加风化煤处理提前6d。堆肥结束时,3个处理有机碳含量下降43.78%、39.44%和40.27%;C/N下降38.56%、40.53%和41.31%。全氮含量分别减少29.55%、11.11%和11.27%;全钾含量增加19.8%、39.8%和33.7%;全磷含量变化不大。由于风化煤的加入,pH略有降低,而NH4+-N和NO3--N的含量变化不大。可见添加10%的风化煤可加快堆肥腐熟,降低氮素损失,增加钾的累积。To find out the influence of adding weathered coal on composting of mushroom residue and cow manure,we conducted composting experiments with the cow manure and mushroom residue added 0,10% and 20% weathered coal,respectively,and determined changes of temperature,content of water,pH et al.The results showed that after applying 10% weathered coal,the pile temperature reached 50 ℃ in 72h,six days earlier than the treatment without addition of weathered coal.The organic content in three treatments decreased by 43.78%,39.44% and 40.27%,respectively and the C/N ratio declined by 38.56%,40.53% and 41.31%,respectively.Nitrogen content of the three treatments went down by 29.55%,11.11% and 11.27%,respectively.However,total potassium increased by 19.8%,39.8% and 33.7%,respectively,but the changes of total phosphorus were not clear.And changes of NH4＋-N and NO3——N in the three treatments were the same.Applying 10% weathered coal would accelerate the composting process,decrease the loss of N,and increase the heap of K.

关 键 词：风化煤 蘑菇渣 堆肥 

分 类 号：S141.4[农业科学—肥料学]