滨海重盐碱地设施原土改土降盐关键技术  

Key Technologies of Facility Original Soil Modification and Salt Reduction in Coastal Heavy Saline Alkali Land

作　　者：张国新[1] 李可晔 姚玉涛[1] 丁守鹏 孙叶烁 ZHANG Guo-xin;LI Ke-ye;YAO Yu-tao;DING Shou-peng;SUN Ye-shuo(Coastal Agriculture Institute,Hebei Academy of Agriculture and Forestry Sciences/Hebei Technical Research Center of Saline-alkali Soil Greening Project,Tangshan 063299,China)

机构地区：[1]河北省农林科学院滨海农业研究所/河北省盐碱地绿化工程技术研究中心,河北唐山063299

出　　处：《河北农业科学》2021年第4期63-66,共4页Journal of Hebei Agricultural Sciences

基　　金：河北省财政专项(2019-1-6-4)。

摘　　要：围绕滨海区设施农业生产及盐碱地高效利用需求,开展滨海重盐碱地设施原土改土降盐关键技术研究,旨为滨海重盐碱地设施果蔬原土生产提供技术支撑。在含盐量15~20 g/kg的滨海盐碱土壤,通过暗管埋设参数优化、改土物料配施、淡水洗盐方式研究,形成了深层暗管排盐+耕层改土降盐+表层滴灌淡水洗盐的设施原土综合降盐技术,可使0~40 cm土层降盐70%以上,耕层土壤含盐量降至3 g/kg以下,实现了滨海重盐碱地果蔬设施原土直接生产。Focusing on the needs of facility agricultural production and efficient utilization of saline alkali land in coastal area,the research on the key technologies of facility soil modification and salt reduction of coastal heavy saline alkali land was carried out,in order to provide technical support for the production of facility fruits and vegetables in coastal heavy saline alkali land.In the coastal saline alkali soil with salt content of 15-20 g/kg,through the optimization of buried parameters of underground pipe,the combined application of soil modification materials and the fresh water salt washing method,the facility original soil comprehensive salt reduction technology of deep underground pipe salt drainage+soil salt reduction by topsoil modification+fresh water salt washing by surface drip irrigation had been formed.The salt reduction in 0-40 cm soil layer can be more than 70%,and the salt content of topsoil soil can be reduce to 3 g/kg or less.It has realized the direct production of fruits and vegetables in the original soil of coastal heavy saline alkali land.

关 键 词：滨海区 重盐碱地 设施生产 原土降盐 

分 类 号：S156.4[农业科学—土壤学]