黔中地区玉米需水量的计算与灌溉预报  

Calculation of Corn Water Requirements and Irrigation Forecast in Middle District of Guizhou Province

作　　者：张和喜[1] 杨静[1] 方小宇[1] 房军[1] 冯诚[1] 

机构地区：[1]贵州省水利科学研究院,贵州贵阳550002

出　　处：《节水灌溉》2008年第5期22-24,共3页Water Saving Irrigation

摘　　要：作物需水量的计算和灌溉预报是农田水分管理的主要参数,实时灌溉预报是制定动态灌溉用水计划的基础,对区域节水,增加作物产量和提高经济效益起着重要作用。以黔中地区全生育期玉米为研究对象,结合玉米不同生育阶段的各项参数,进行作物需水量的计算和灌溉预报。The crop water requirements and irrigation forecast are main parameters for the farmland moisture management. The realtime irrigation forecast is the base for the decision of dynamic irrigation schedule and plays an important role in saving water, increas ing crop yields and economic benefits. Taking the corn in entire period as the study object and combining each parameter in different growth stage, the calculation of crop water requirements and the irrigation forecast are conducted in this paper. The results show that the forecast system has good practical application value.

关 键 词：玉米 作物需水量 灌溉预报 

分 类 号：S274[农业科学—农业水土工程]