不同矿化度咸水灌溉对小麦和玉米产量及土壤盐分运移的影响  

Effects of Saline Water Irrigation on the Yield of Wheat and Maize and Soil Salt Movement

作　　者：郑春莲[1] 曹彩云[1] 李伟[1] 马俊永[1] 李科江[1] 张苍根 牛英洁 

机构地区：[1]河北省农林科学院旱作农业研究所河北省农作物抗旱研究重点实验室农业部衡水潮土生态环境重点野外科学观测试验站,河北衡水053000 [2]衡水市气象局,河北衡水053000

出　　处：《河北农业科学》2010年第9期49-51,55,共4页Journal of Hebei Agricultural Sciences

基　　金：国家科技支撑计划项目(2007BAD69B08);国家科技支撑计划项目(2009BADA3B05)

摘　　要：2006~2008年在河北省农林科学院旱作节水试验站,研究了黑龙港地区利用不同矿化度咸水灌溉的小麦和玉米产量以及土壤盐分运移累积的影响。结果表明：作物产量随着灌溉水矿化度的升高而逐渐降低,4 g/L咸水灌溉的小麦和玉米产量分别较淡水灌溉减产8.87%和7.16%;在0~40 cm作物主要根层,矿化度〉4 g/L的咸水灌溉土壤盐分增加幅度较大,增加值为2.13~2.56 g/kg,而〈4 g/L的咸水灌溉土壤盐分一直都〈2 g/kg。在黑龙港地区利用微咸水直接灌溉时,咸水矿化度一般不宜超过4 g/L。The effects of saline water irrigation on the yield of wheat and maize and soil salt movement were studied in Heilonggang from 2006 to 2008.The results showed that the yield decreased with the increase of irrigation water salinity.The yield of wheat and maize decreased by 8.87% and 7.16%,respectively with the saline water irrigation of 4 g/L.At 0-40 cm root layer,the soil salinity increased by 2.13-2.56 g/kg,when the salinity was more than 4 g/L,and that was less than 2 g/kg,when the salinity was less than 4 g/L.The saline water salinity should not exceed 4 g/L,when directly irrigating with saline water.

关 键 词：咸水灌溉 小麦 玉米 产量 土壤盐分 

分 类 号：S512.11[农业科学—作物学]