摘要
[目的]研究不同灌溉方式对温室表层土壤盐分积累的影响。[方法]通过连续2年在河海大学节水园区温室大棚内栽培番茄小区试验,对滴灌、渗灌和常规灌溉3种灌溉方式及不同施肥量对土壤表层的盐分积累进行比较研究。[结果]0～20cm土层土壤全盐含量以滴灌最低,渗灌次之,常规灌溉最高;滴灌对降低土壤SO42-和Na+效果最显著。[结论]节水灌溉方式对改变土壤离子组成、防止温室土壤盐渍化具有重要作用。
[Objective]The research aimed to dissuss the effects of differentirrigation methods on salt accumulation in topsoil under greenhause.[Method]Field experiments of tomatos were conducted to investigate the effects of three methods of irrigation（drip irrigation,infiltration irrigation and conventional irrigation）on accumulation of soluble salt in topsoil under greenhouse in Water-saving Park of Hohai University.[Result]The results showed that the lowest value of total soluble salt content in 0-20 cm of soil layer was drip irrigation,followed by infiltration irrigation and the conventional irrigation.SO42-and Na＋ contents in topsoil were significantly decreased by drip irrigation than other ions,which were two main ions contributing to soil salinization.[Conclusion]It could be deducted with the experimental result that selecting a water-saving irrigation method would be an effective way to change the ion composition and prevent soil salinization under greenhouse.
出处
《安徽农业科学》
CAS
北大核心
2010年第12期6434-6435,6553,共3页
Journal of Anhui Agricultural Sciences
关键词
温室
灌溉方式
盐分积累
Greenhouse
Irrigation method
Soluble salt accumulation
