根系分区灌水的生理基础及其在果树上的应用  

Physiological basis and application of partial rootzone irrigation in culturing fruit trees

作　　者：邹养军[1] 魏钦平 李嘉瑞[3] 

机构地区：[1]西北农林科技大学干旱半干旱研究中心,陕西杨凌712100 [2]北京市林业果树研究所,北京100093 [3]西北农林科技大学园艺学院,陕西杨凌712100

出　　处：《干旱地区农业研究》2005年第1期214-218,共5页Agricultural Research in the Arid Areas

基　　金：北京市科委重大项目(H0370050130);北京市农委项目(20030112)

摘　　要：根系分区灌水是一种新型的灌水技术,可以在不影响产量的前提下提高水分利用率。从根系分区灌水概念的提出、生理基础及其在果树上的应用现状等方面对这一技术进行了综述,并分析了根系分区灌水在果树上的应用前景、存在问题及进一步研究方向。Partial Rootzone Irrigation (PRI) is a novel irrigaing technique which improves water use efficiency when the production does not decrease. The technique requires that about half of the root system is always maintained in a dry or drying condition while the other half of the root system is irrigated. The wetted and dried parts of the root system are alternated after a period of time. The produce and physiological basis of PRI are discussed in this article. The future and problems of PRI in fruit trees culture are also analyzed.

关 键 词：根系 灌水技术 果树 生理基础 高水分 分区 产量 存在问题 概念 前提 

分 类 号：S66[农业科学—果树学] S511[农业科学—园艺学]