银杏残叶添加比例对猪粪好氧堆肥的影响  

Aerobic composting of pig manure amended with different ratios of ginkgo leave residues

作　　者：徐宏强[1,2] 沈加禾 张焕朝[1] 王艮梅[1] 曹福亮[1] 

机构地区：[1]南京林业大学南方现代林业协同创新中心,南京林业大学林学院,江苏南京210037 [2]江苏省林业局,江苏南京210036 [3]金坛市土壤肥料技术指导站,江苏金坛213200

出　　处：《南京林业大学学报（自然科学版）》2016年第1期39-43,共5页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家林业公益性行业科研专项项目(201004015);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：采用好氧堆肥方法,研究了不同银杏残叶添加比例（质量分数0%、10%、20%,30%,40%）对猪粪堆肥的影响,结果表明：添加质量分数20%和30%银杏残叶堆肥在第3天分别达到最高温65℃和63℃,且高温阶段（〉55℃）持续时间达7 d,完成主要发酵过程约需28 d,明显少于未添加银杏残叶堆肥（对照）所需时间（约37d）。堆熟后,各处理堆肥有机碳含量（质量分数）在25%~28%之间,无显著差异,均符合有机肥国家标准。各处理堆肥全N（TN）含量（质量分数）在226%~320%之间。与对照相比,添加质量分数20%银杏残叶处理TN增加最高,达415%。各处理堆肥的碳氮比（C/N）和T值（堆肥结束与初始C/N的比）均符合猪粪堆肥腐熟标准（C/N〈20、T值〈0.6）。添加质量分数20%和30%银杏残叶处理的种子发芽指数在堆制28 d时,已达80%以上,而其他处理则在35 d后才达到。综合来看,添加质量分数20%~30%的银杏残叶有利于猪粪好氧堆肥的熟化、稳定及质量提高。For the purpose of resourceful utilization of the ginkgo leave residues（GLR）, the effects of GLR mass ratios（0%, 10%, 20%, 30% and 40%） on aerobic composting of pig manure were studied in this paper. The results showedthat the temperature in the composts added with 20% and 30% of GLR raised to its maximum value of 65 ℃ and 63 ℃respectively in the third day, and their high temperature over 55 ℃ maintained for 7 days during composting. Only 28 days were spent for the main fermentation process（over 40 ℃） in the composts with 20% and 30% GLR, obviously lessthan that in the control compost added no GLR. After composting, the organic carbon content in all composts was 25%-28%, fitted the national standard of organic fertilizer（NY525-2012）, and didnt present significant differences betweenthe composts. Total nitrogen（TN） content in all composts was 2.26%-3.20%. The TN content in the compost with 20%GLR was 3.20% and increased by 41.5% compared with the control. Both C/ N andTvalue（the ratio of the C/ N at theend of composting to that at the beginning of composting） in all composts were fitted with the maturity standard of pigmanure compost（C/ N20,T〈0.6）. The germination index（IG） of corn was over 80% in the 28 th day during compos-ting for the composts with 20% and 30% GLR, while for the other composts over 35 days were spent. Comprehensively,the mass ratio of 20%-30% GLR was more benifit to the aerobic composting of pig manure.

关 键 词：银杏残叶 猪粪 堆肥发酵 作物发芽指数 

分 类 号：S714.8[农业科学—林学]