沼液沼渣对改善农村土壤质量效果分析  

Effect Analysis of Biogas Slurry and Biogas Residue on Improving Rural Soil Quality

作　　者：宋海军 SONG Hai-jun(College of Resources and Environment, Henan Institute of Engineering, zhengzhou 451191, china)

机构地区：[1]河南工程学院资源与环境学院,河南郑州451191

出　　处：《中国沼气》2020年第4期51-53,共3页China Biogas

基　　金：河南省教育厅科学技术重点研究项目(14B610009)。

摘　　要：文章评估了沼液沼渣对农村土壤质量改善效果,可为农村沼液沼渣综合化利用提供科学依据。通过对沼气户和非沼气户土壤中速效钾、速效磷、全氮、有机质含量进行连续动态监测和定量对比分析,结果显示,沼气户土壤中的速效钾、速效磷、全氮、有机质平均含量均高于非沼气户,且“四位一体”生态模式沼气户土壤中四种营养成分含量高于“三位一体”生态模式。可见,沼液沼渣对于增加土壤养分,改善土壤质量效果明显。To evaluate the effect of biogas digestate on the improvement of soil quality can provide scientific basis for the comprehensive utilization of biogas slurry in rural areas.In this paper,the contents of available potassium,available phosphorus,total nitrogen and organic matter in soil of biogas households and non-biogas households were continuously monitored and quantitatively analyzed.The results showed that the average contents of available potassium,available phosphorus,total nitrogen and organic matter in the soil of biogas households were higher than that of non-biogas households.In addition,the contents of these four nutrients in the soil of"four in one"biogas model were higher than that of"three in one"model.It can be seen that the biogas slurry and biogas residue have obvious effect on increasing soil nutrients and improving soil quality.

关 键 词：沼液沼渣 土壤质量 速效钾 速效磷 全氮 有机质 

分 类 号：S141[农业科学—肥料学] S216.4[农业科学—农业基础科学]