利用汇集雨水对春小麦进行补灌方式、补灌时期及补灌量的试验表明 ,不论贫水年和丰水年 ,有限滴灌均能明显使作物节水增产。膜下滴灌方式的保墒节水效应和提高水分利用效率作用明显 ;春小麦的拔节 -孕穗期是实施补灌的关键时期 ;春小麦全生育期滴灌补灌定额90 0 m3/ hm2 ,重点应加强促苗水、拔节水、孕穗水和灌浆水 Experiments of using rainwater to supplement spring irrigation, filling irrigation period and filling amount showed that limited drip irrigating could significantly increase water-saving and yield-increasing crops in both wet years and wet years. Under plastic mulch drip irrigation mode, the effect of water conservation and water saving and water use efficiency were obvious. The jointing-booting stage of spring wheat was the key period of filling irrigation. The fixed irrigation irrigation quota of spring wheat was 90 0 m3 / hm2 during the whole growth period, Water, jointing, booting and grouting