接种外源生物菌剂后牛粪堆肥腐植酸变化规律  

Variation of Humic Acids During Cow Manure Composting After Exogenous Microbial Agents Inoculation

作　　者：任静[1] 郁继华[1] 颉建明[1] 张国斌[1] 李雯琳[1] 

机构地区：[1]甘肃农业大学农学院,兰州730070

出　　处：《农业环境科学学报》2013年第6期1277-1283,共7页Journal of Agro-Environment Science

基　　金：农业部行业专项:西北非耕地园艺作物栽培基质优化配制技术与产业示范(201203001);农业产业技术体系建设资金项目:国家大宗蔬菜产业体系(CARS-25-C-07);甘肃省级重大专项:玉米秸秆基质循环利用技术研究与示范(1002FKDA038)

摘　　要：添加3种不同的外源生物菌剂对牛粪进行堆肥试验,通过测定堆肥过程中的温度、腐植酸的变化,研究了添加外源微生物对堆肥腐熟进程的影响,以及筛选出适合当地堆肥条件的生物菌剂。结果表明,添加3种外源微生物均对堆体快速升温及延长高温期有显著作用;菌剂2、菌剂3有效地加速了总腐植酸、水溶性腐植酸的转化与合成,但对游离腐植酸的作用并不显著;添加菌剂3处理的胡敏酸与腐殖化指数高于其他两个处理,且与对照差异显著。各处理的富里酸含量在堆肥结束时基本相同,外源菌剂对其并无影响。To find out the suitable microbial agents to the local manure composting condition, the effects of three kinds of exogenous microbial agents on the cow manure composting were studied. Variations of temperature and humic acid during composting process were investigated in this study. The results showed that all three kinds of exogenous microbial agents increased temperature quickly and prolonged the high tem- perature period; Agent 2 and Agent 3, which are effective of accelerating transformation and synthesis of total humie acid and the water soluble humic acid, had no obvious effects on the free from humic acid. The humic acid and humification index of Agent 3 treatments were higher than those of the other treatments. There were significant differences between the control and Agent 3 treatments. The content of fulvic acid in all treatments was fundamentally the same at the end of composting, indicating that the exogenous microbial agents had no effects on it.

关 键 词：堆肥 菌剂 腐植酸 牛粪 

分 类 号：S141.4[农业科学—肥料学]