在人工控制试验条件下，采用子母盆栽土培法，以夏玉米为材料进行了调亏灌溉试验研究。结果表明，玉米调亏灌溉是可行的，可以实现节水、高产和高效的目标。适时适度地水分亏缺显著抑制蒸腾速率，而光合速率下降不明显，复水后光合速率又具有超补偿效应，光合产物具有超补偿积累，且有利于向籽粒运转与分配；抑制营养生长，增大作物根冠比，提高了根系传导力，增强了植株抗旱性。玉米节水高产的调亏灌溉指标是：调亏时段为三叶一心—拔节（七叶一心），调亏度为４５％～６５％的田间持水率（θｆ），历时２１天；或拔节～抽穗调亏，调亏度为６０％～６５％，历时２１天；平均比对照增产２５．２４％，节水１５．４１％，水分利用效率提高４５．０５％。 Under artificial control test conditions, the method of regrowth deficit irrigation experiment was carried out by using the method of potted soil culture and summer maize as materials. The results showed that the regulated deficit irrigation of maize was feasible and could achieve the goals of water saving, high yield and high efficiency. The appropriate and timely water deficit significantly inhibited the transpiration rate, while the photosynthetic rate did not decrease obviously. The photosynthetic rate had the overcompensation effect after rehydration. The photosynthetic products accumulated overcompensated and was beneficial to the grain growth and distribution. Large root-to-shoot ratio, increased root conductivity, increased plant drought resistance. Regulated deficit irrigation indicators of corn water-saving and high-yielding are as follows: the period of defibrillage is Clover One-jointed (Aesculapius), the field water-holding rate (θf) is 45% ~ 65% ~ Deficit loss of heading, adjusting the loss of 60% to 65%, which lasted 21 days; an average increase of 25.24% over the control, water saving 15.41%, water use efficiency increased 45.05%.