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本文针对作物高产、高效和节约水肥资源的目的，研究了不同土壤水和氧水平下的小麦冠、根生长状况、籽粒产量、蒸散、N素吸收状况以及水分利用效率（WUE）和小麦氮索利用效率（NUEw）。结果表明，当相对含水量为75％～85％，施N量较高情况下，可以使小麦冠、根发育良好，使蒸散与吸N量提高，从而增加籽粒产量，提高WUE，并使NUEw达适中水平。文中也强调了单纯追求籽粒高产（高产，低效）或高效（低产高效）的不可取性。
In this paper, the crown and root growth, grain yield, evapotranspiration, N uptake and water use efficiency (WUE) and wheat nitrogen (NUE) under different soil water and oxygen levels were studied in this paper. Utilization efficiency (NUEw). The results showed that when the relative water content was 75% ~ 85%, the crown and root of wheat could be well developed and the transpiration and N uptake could be increased under the condition of high N application rate, which could increase grain yield, increase WUE and make NUEw Up to moderate level. The article also emphasized the simple pursuit of grain yield (high yield, low efficiency) or high efficiency (low yield and high efficiency) of the undesirable.