The object is to explore an optimal supply model of water and nitrogen on maize under alternative furrow irrigation, the micro-field experiments of rain-shield was conducted about furrow irrigation mode, nitrogen rate and irrigation amount. Results showed that the maize yield of alternative furrow irrigation ( AFI) , middle water and low nitrogen rate had the maximum grain yield, which was 1. 06 times of AFI, high water and high nitrogen rate. Under the same water and nitrogen, the yield of AFI was 1. 05 times of normal furrow irrigation ( NFI) , and 1.16 times of fixed furrow irrigation ( FFI). Total nitrogen accumulation (TNA) of AFI was the most, NFI was the second, and FFI was the minimum. The order of effect on TNA was furrow irrigation mode, nitrogen rate and irrigation amount, the influences of irrigation amount on TNA reached significant level.%为探索交替隔沟灌溉条件下玉米优化水氮供给模式,通过遮雨棚内微区试验,研究了沟灌方式、灌水量和施氮量对玉米群体水氮利用的影响.结果表明:交替隔沟灌溉中水低氮处理的籽粒产量最高,是交替隔沟灌溉高水高氮处理的1.06倍.在相同水分和氮肥条件下,交替隔沟灌溉的籽粒产量分别是常规沟灌和固定隔沟灌溉的1.05、1.16倍.各因素对全氮累积总量的影响从大到小依次为:沟灌方式、施氮量、灌水量；灌水量对全氮累积总量影响显著.
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