基于物理指标快速预测猪粪尿肥料成分含量的试验研究  

Rapidly estimating fertilizer value of swine slurries based on physical properties

作　　者：杨增玲[1] 韩鲁佳[1] 刘依[1] 朴香淑[2] 

机构地区：[1]中国农业大学现代精细农业系统集成研究教育部重点实验室,北京100083 [2]中国农业大学农业部饲料工业中心,北京100094

出　　处：《农业工程学报》2003年第6期276-280,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：教育部优秀青年教师资助计划项目

摘　　要：该试验旨在研究家畜粪便的物理指标与其肥料成分含量的关系 ,用来预测猪粪便肥料成分含量。通过对鲜粪便的理化指标测定的试验数据进行统计分析后提出 ,电导仪和密度计两种实验室常用仪器可实现对猪粪便中肥料成分氮、磷、钾含量的预测 :用电导率这一物理指标可准确预测猪粪、猪尿和粪尿混合物中铵态氮的含量 ,同时可准确预测猪粪、猪尿和粪尿混合物中钾的含量 ;用密度这一物理指标可较准确地预测猪粪、猪尿和粪尿混合物中总氮的含量 ,同时可较准确地预测猪粪尿混合物中磷的含量。分析中发现猪尿中总氮和铵态氮比例基本稳定 ,由此推想用电导率来预测猪尿中总氮的含量 ,获得了很好的效果。This experiment is to study the relationships between nutrient contents and physical properties of swine slurries in order to estimate fertilizer value of swine slurries. Analytical results of this paper show that slurry fertilizer value can be estimated by two main physical parameters: electrical conductivity (EC) and specific gravity (SG). Electrical conductivity (EC) can be evaluated for estimating ammoniacal nitrogen in pig feces, in pig urine and in pig manures; Electrical conductivity (EC) can be evaluated for estimating potassium in pig feces, in pig urine and in pig manures; specific gravity (SG) can be evaluated for estimating total nitrogen in pig feces, in pig urine, in pig manures and phosphorus in pig manures. Furthermore, the linear regression equations of total nitrogen in pig urine and electrical conductivity (EC) provide reliable and accurate indication of total nitrogen content in pig urine.

关 键 词：猪粪便 肥料成分含量 电导率 密度 

分 类 号：X713[环境科学与工程—环境工程]