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冬小麦节水灌溉技术,国内外已进行了广泛的研究并取得较大进展。本项研究针对新乡市两大生态类型区(东部潮土类型区和西部褐土类型区)小麦生产急需解决的水资源供需矛盾和经济施肥的实际问题,根据冬小麦分蘖盛期和孕穗期两个吸水、吸氮、吸磷高峰的生理特点,采用~(15)N、~(32)P双标记示踪方法,将节水灌溉和施用氮、磷肥效益结合起来,对冬小麦两大生态类型区的节水灌溉优化(即时期、次数)及其成产因子、吸收
Winter wheat water-saving irrigation technology, both at home and abroad have conducted extensive research and made great progress. In this study, the contradiction between water supply and demand and economic fertilization, which are urgently needed to be solved in wheat production in two major ecotype areas (eastern Chao soil type area and western cinnamon type area) in Xinxiang City, are analyzed. According to the actual conditions of tillering and booting (15) N and ~ (32) P double tracing methods were used to combine the effects of water-saving irrigation and application of nitrogen and phosphate fertilizer on the physiological characteristics of water absorption, nitrogen absorption and phosphorus uptake. Water-saving irrigation optimization (ie, the number of times) and its production factors, absorption