摘要
以新疆伊犁地区农田土壤为供试土壤,通过田间试验研究了沼液灌溉对绿洲农田土壤养分的影响。结果表明:施用沼液能够降低耕层土壤容重和pH值,改善土壤结构,改良碱性土壤;沼液灌溉能够显著增加绿洲农田耕层土壤有机质、全氮、全磷、全钾、铵态氮、硝态氮、速效磷、速效钾的含量;但沼液施用过程中会引起土壤盐分上升,使绿洲农田土壤存在次生盐渍化的风险。
The field plot experiment in Yili area has been carried out to research the influence of biogas fluid on soil fertility in oasis farmland in 1 year.The results showed that the biogas fluid irrigation decreased topsoil bulk density and soil pH,improved soil structure and sodic soil.The biogas fluid irrigation could also increase the content of topsoil organic matter,total N,total P,total K,ammonia nitrogen and nitrate content,available P and available K was promoted remarkably.However,there were potential risk of soil secondary salinization with the increase of the biogas fluid irrigation year.
出处
《石河子大学学报（自然科学版）》
CAS
2011年第5期542-545,共4页
Journal of Shihezi University(Natural Science)
基金
新世纪优秀人才支撑计划(NCET-09-0903)
石河子大学重大科技攻关计划项目(gxjs2010-zdgg04-04)
关键词
沼液
绿洲农田
土壤养分
biogas fluid
oasis farmland
soil nutrient
