【摘要】 本文通过对作物产量与需水量的关系及高产水分条件的分析、根据关中地区作物需水规律,气候特点及多年灌溉实践,提出“作物基本灌溉”的概念。并在对大量灌溉试验资料分析的基础上,制定出关中灌区不同水文年亩产粮食800～1000公斤、棉花100公斤、油菜200公斤以上的节水灌溉制度,可较现行灌溉制度每亩减少灌水100立米以上。更多还原

【Abstract】 A new concept of basic irrigation of crops is put forward in the light of the analysis of the relations between crop yield and water demand and optimum soil moisture and based on the local crop evapotranspiration and climatic conolitions as well as long-run irrigation practice, irrigation procedures which will bring about high yield and water saving are dctermined for different hydrologic years.更多还原