沼液对土壤理化性质的影响
Effects of Biogas Slurry on Soil Physical and Chemical Properties
王毅琪 1韩文彪 1赵玉柱 1陈灏 2王玉喜 1呼斯冷1
作者信息
- 1. 中国科学院生态环境研究中心鄂尔多斯固体废弃物资源化工程技术研究所,内蒙古鄂尔多斯017000;鄂尔多斯市城市矿产研究开发有限责任公司,内蒙古鄂尔多斯017000
- 2. 中国科学院生态环境研究中心鄂尔多斯固体废弃物资源化工程技术研究所,内蒙古鄂尔多斯017000
- 折叠
摘要
[目的]为了考察沼气工程发酵沼液施用对土壤理化性质的影响.[方法]以苜蓿为材料,采用田间试验,探讨不同沼液施用量对土壤理化性质的影响.[结果]施用全沼液后土壤酸碱度得到明显改善,由碱性土壤逐渐转变为弱碱性,土壤含水率从5.53％提高到13.92％,土壤氨氮、速效磷和速效钾得到显著积累,与施肥前相比分别提高80％、50％和116％,土壤有机质含量与施肥前相比提高了61.55％.[结论]施用沼液对土壤理化性质有显著的改良作用.
Abstract
[Objective] The research aimed to investigate the effects of biogas slurry on the soil physical and chemical properties.[Method] The impacts of different application amount of biogas slurry on physical and chemical properties of soil were studied through field experiment with medicago as test materials.[Result] The biogas slurry could change pH from alkaline to alkalescence,moisture content of the soil increased from 5.53％ to 13.93％.Biogas slurry could lead to the accumulation of the NH4+-N,avai1able P,and available K in soils obviously,and they increased by 80％,50％,116％ and 61.5％ compared with the pre-implantation respectively.[Conclusion] Biogas slurry can improve the physical and chemical properties of soil obviously.
关键词
沼液/土壤/理化性质Key words
Biogas slurry/Soil/Physical and chemical property引用本文复制引用
基金项目
“十二五”国家科技支撑计划项目(2012BAC25B03)
“十二五”国家科技支撑计划项目(2012BAC25B07)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据