不同麦秆覆盖量对夏玉米耗水量和生理性状的影响  

Effect of Different Soil Moisture Conservation and Irrigation on Water Consumption and Physiological Traits of Summer Corn

作　　者：张吉祥[1] 汪有科[2] 员学锋[3] 张立强 于晓蕾[2] 

机构地区：[1]西北农林科技大学资源与环境学院,陕西杨凌712100 [2]国家节水灌溉杨凌工程技术研究中心 [3]长安大学地球科学与国土资源学院,西安710054

出　　处：《灌溉排水学报》2007年第3期69-71,共3页Journal of Irrigation and Drainage

基　　金：国家863计划重大专项(2002AA2Z4211);陕西农业节水灌溉技术标准研究与示范(2006kz08G3)

摘　　要：采用盆栽试验方法,研究了覆盖小麦秸秆保墒措施+灌溉条件下,对夏玉米生育期耗水量、生理性状和光合特性的影响,其中秸秆覆盖量分别为0(对照)、3000、6000、9000和12000 kg/hm2。结果表明:秸秆覆盖显著地减少了夏玉米生育期耗水量、增加了玉米株高和叶面积,秸秆覆盖量9000 kg/hm2时效果最佳;夏玉米的光合速率和蒸腾速率随着秸秆覆盖量的增大而增加。With pot experiment, we research the effects of different soil moisture conservation and irrigation on water consumption and physiological traits of summer corn. Straw mulching is adopted in this experiment. Different quantity of straw mulching as treatments with 0 （ck）, 3000, 6000, 9000 and 12000 kg/hm2. The results show that, straw mulching decrease water consumption of summer corn during growing period, and increase stem length and leaf area of summer corn, the 9000 kg/hm^2 of straw mulching get the best effect. With the increasing quantity of straw mulching, the value of photosynthetic rate and transpiration rate become bigger.

关 键 词：夏玉米 保墒灌溉 秸秆覆盖 

分 类 号：S513[农业科学—作物学]