豫北麦区小麦水分高效利用技术模式研究

Technology Model of High Water Use Efficiency for Wheat in North Henan

在水肥资源紧缺的情况下,为了探索目前黄淮麦区高产麦田的水分高效利用模式,在安阳市采用以当地常规模式为对照的4种施肥灌溉模式进行研究。结果表明,以安阳市生态条件为代表的豫北地区,栽培模式1(N210 kg/hm2,底墒水、拔节水、开花水)产量为5 847.0 kg/hm2,是小麦高产高效的较佳模式;其次为CK(浇4水),表明在4种栽培模式中,底墒水、拔节水、开花水是豫北生态类型区较为适宜的高产高效灌溉模式,与CK相比,该模式不仅省水、省肥、省工,而且产量较高,在豫北地区具有一定的推广价值。

Facing the situation of water and fertilizer shortage, high water utilization model for Huanghe-Huaihe wheat zone was approached using randomized block design and 4 fertilization and irrigation models compared with the local model. The results showed that, in north Henan of Anyang typical ecological environment, cultivation I, with N： 210 kg/hm2, irrigation at bottom, joining and bloom- ing stages, and an output of 5 847 kg/hectare, was a fairly good high yield and high water use efficiency cultivation model; As for all ex- perimental models is concerned, CK of 4 irrigations followed. The study resuhs show that model I is the most suitable and efficient culti- vation model. Compared with CK, model I is water saving, fertilizer saving, labor saving and high yielding, so it is of great extension value in north Henan