陕北山地滴灌枣树耗水规律与作物系数研究  

Study on the Water Consumption Rules and Crop Coefficient of Drop-irrigation Jujube Trees in the Mountain Areas of North Shanxi Province

作　　者：魏群 费良军[2] 

机构地区：[1]深圳市深水水务咨询有限公司,广东深圳518000 [2]西安理工大学西北水资源与环境生态教育部重点实验室,陕西西安710048

出　　处：《亚热带水土保持》2012年第4期12-16,共5页Subtropical Soil and Water Conservation

基　　金：国家科技支撑计划项目(2007BAD88B05)

摘　　要：在米脂山地微灌枣树示范基地进行大田滴灌试验,研究了不同保墒条件下的不同灌水量、不同灌水次数对枣树耗水规律及作物系数的影响。结果表明,不同保墒条件下枣树各生育期中果实膨大期耗水量最大,开花坐果期次之;秸秆覆盖条件下的节水效果最明显;参考作物ET0值表现为两端值较小而中间部分的值较大;作物生育阶段Kc值是动态变化的。Field drip irrigation tests were conducted at the micro - irrigation jujube demonstration base of Mizhi Moun- tain to research the impact of different watering amount and watering times to the jujube water consumption rules and crop coefficients under the different moisture conservation conditions. The results show that under different moisture conservation conditions, the water consumption amount of jujube trees is largest at the fruit expanding period and sec- ond in the flowering and fruit bearing period. The water saving effect is most obvious under the cover of the straw mulch, the reference crop ETO values appeared as lower values at both ends and higher value the middle part. Kc values changes dynamically during the crop growth period.

关 键 词：滴灌 枣树 耗水规律 作物系数 

分 类 号：S665.107.1[农业科学—果树学]