添加动物源氨基酸水解液研制生物有机肥

发布时间：2018-08-21 13:43

【摘要】：为改善生物有机肥性质,提高生物有机肥质量,采取在生物有机肥中添加外源氨基酸水解液以提升生物有机肥中功能微生物的数量.以病死猪酸解制得氨基酸水解液为生物有机肥外加原料,研究了氨基酸水解液添加量、有机肥种类(鸡粪、牛粪、中药渣)、发酵时间对功能菌株SQR9数量的影响.结果表明:当氨基酸水解液添加量为20%时固体发酵效果优于其他接种量,预发酵3 d后接种SQR9的功能菌数量明显高于未预发酵直接接菌,预发酵中肥料(以干质量计,下同)的最高功能菌数量可达4×10~8CFU/g,而第0天接菌时肥料的最高功能菌数量仅为1.2×10~8CFU/g.以腐熟鸡粪、牛粪、中药渣堆肥为载体,添加酸解氨基酸研制生物有机肥的最优接菌量分别为10.0%、7.5%、10.0%;SQR9菌株生长的最佳含水量为40%.此外,氨基酸水解液的添加可提高生物有机肥的w(TN).研究显示,氨基酸水解液的添加能有效促进固态发酵过程中功能菌株数量的增加.
[Abstract]:In order to improve the properties of bio-organic fertilizer and improve the quality of bio-organic fertilizer, exogenous amino acid hydrolysate was added to the bio-organic fertilizer to increase the number of functional microorganisms in bio-organic fertilizer. The effects of the amount of amino acid hydrolysate, kinds of organic manure (chicken manure, cow manure, Chinese traditional medicine residue) and fermentation time on the number of functional strains SQR9 were studied. The results showed that the effect of solid fermentation was better than that of other inoculations when the amount of amino acid hydrolysate was 20%, and the number of functional bacteria inoculated with SQR9 after 3 days of pre-fermentation was obviously higher than that of direct inoculation without pre-fermentation. The number of the highest functional bacteria reached 4 脳 10 ~ (8) CFU / g, but only 1.2 脳 10 ~ (8) CFU / g in fertilizer on the 0 th day after inoculation. The optimum inoculation amount of bio-organic fertilizer was 10.0% 7.5% and 10.0%, respectively. The optimum water content of SQR9 strain growth was 40. 0% in the compost of decaying chicken dung, cow dung and Chinese traditional medicine residue, and adding acidolysis amino acid to produce bio-organic fertilizer. In addition, the addition of amino acid hydrolysate can improve the w (TN). Of bio-organic fertilizer. The results showed that the addition of amino acid hydrolysate could effectively increase the number of functional strains during solid-state fermentation.
【作者单位】：南京农业大学资源与环境科学学院江苏省固体有机废弃物资源化高技术研究重点实验室农业部长江中下游植物营养与施肥重点实验室;南京秦邦吉品农业开发有限公司;
【基金】：中央高校基本科研业务费专项(KYCYL201502) 国家重点研发计划项目(2016YFD0800605,2016YFD0200106)
【分类号】：S144

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