咸水非充分灌溉对土壤盐分动态及制种玉米产量的影响  

Effects of Deficit Irrigation with Saline Water on Soil Salt Dynamic in Profile and Yield of Seed Maize

作　　者：袁成福[1] 冯绍元[1,2] 霍再林[2] 王庆明[2] 季泉毅[1] 

机构地区：[1]扬州大学水利科学与工程学院,江苏扬州225009 [2]中国农业大学中国农业水问题研究中心,北京100083

出　　处：《灌溉排水学报》2013年第3期114-116,120,共4页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(51179166);高校博士点专项科研基金项目(20123250110004);水利部公益项目(201201003)

摘　　要：通过田间试验,研究了咸水非充分灌溉下土壤盐分动态及其对制种玉米产量和水分利用效率的影响。结果表明,玉米播种前至收获后土壤盐分主要累积在中层土壤,尤其是灌水量越大的处理;灌水阶段,表层土壤脱盐量随着灌水量增加而增大;土壤蒸发阶段,灌水量大的处理表层土壤盐分累积明显。灌溉水量控制在390mm左右且灌水矿化度不超过3g/L,减产幅度较低且节水。Field experiments were conducted to study the effects of deficit irrigation with saline water on the soil salt dynamic in profile, yield and water use efficiency of seed maize in Shiyang River Basin. The re- sults showed that the salt was mainly accumulated in the middle soil layer from sowing to harvest of seed maize, especially the treatment with the greater irrigation water amount; The desalination of the surface was enhanced with the increase of irrigation water amount in the period of irrigation while salt was evident- ly accumulated in surface soil for the treatment with the larger irrigation water amount in the period of e- vaporation. Irrigation mode with irrigation water amount of about 390 mm and the irrigation water miner- alization below 3 g/L is recommended as a result of saving water and the yield decreasing slightly.

关 键 词：咸水非充分灌溉 盐分动态 玉米 水分利用效率 

分 类 号：S513[农业科学—作物学]