高寒牧区牦牛粪便的沼液沼渣营养成分分析及其利用途径探讨  

Nutrition Composition Analysis and the Methods of Utilization on Biogas Slurry and Biogas Residue of Yak Excrement in Alpine Pastoral Area

作　　者：杨春桃 唐玮琦 林超文 朱永群 程明军 伍文丹 荣璟 何佩佩 李洪泉 YANG Chuntao;TANG Weiqi;LIN Chaowen;ZHU Yongqun;CHENG Mingjun;WU Wendan;RONG Jing;HE Peipei;LI Hongquan(Grassland Technology Research and Extension Center of Sichuan Province,Chengdu 610041,China;Institute of Ageicultural Resources and Environment,SAAS,Chengdu 610066,China;Southwest Minzhu University,Chengdu 610041,China)

机构地区：[1]四川省草业技术研究推广中心,四川成都610041 [2]四川省农业科学研究院农业资源与环境研究所,四川成都610066 [3]西南民族大学,四川成都610041

出　　处：《草学》2023年第6期65-67,共3页Journal of Grassland and Forage Science

基　　金：青藏高原高寒牧区“沼光风”绿色生态新能源开发关键技术研究集成与示范项目(2020YFN0031);四川饲草创新团队建设项目资助;四川省科学技术厅应用基础研究项目(2020YJ0466);四川省科技下乡万里行牧草产业技术服务团(66团)共同资助。

摘　　要：高寒牧区牦牛粪便发酵能为农牧民提供生活所需热能,发酵产物沼液和沼渣具有丰富的营养成分。通过对红原县牛场牛粪、沼液和沼渣进行营养成分分析,发现发酵后产物pH值降低,沼液和沼渣中含有丰富的有机质和氮磷钾,其重金属含量也低于《农用污泥污染物控制标准》(GB 4284-2018)中规定的A级污泥产物标准,能够被用于耕地、园地和牧草地施肥。牦牛粪便的沼液和沼渣能用于天然草地改良、人工草地种草、治沙和高山(大棚)蔬菜种植。Yak dung fermentation in alpine pastoral area can provide herdsmen with the heat energy for life.The fermentation products biogas residue and biogas slurry are rich in nutrients.Nutrient analysis on cow dung,biogas slurry and biogas residue from hongyuan county showed that the pH of biogas slurry and biogas residue were lower than the cow dung.The biogas slurry and biogas residue were rich in organic mater,nitrogen,phosphorus and potassium,and its heavy metal content is lower than the standard of grade A sludge products stipulated in The Control of Pollutants in Agricultural Sludge(GB 4284-2018),which can be applied to farmland,garden and grassland.The biogas slurry and residue of yak excrement can be used for natural grassland improvement,artificial grassland grass planting,sand control,mountain(greenhouse)vegetable planting.

关 键 词：高寒牧区 沼液 沼渣 成分分析 利用途径 

分 类 号：S823.85[农业科学—畜牧学]