“暮喷”即每天傍晚在树上少量喷水。对红富士苹果树暮喷，可增加单果重、着色早且艳丽全红。主要原因是：①可洗掉果树茎叶上的尘土，有利于白天的光合作用；②可及时降温，控制叶面呼吸消耗，增加养分积累，故单果重增加；③昼夜温差加大，糖分积累增多，有利于花青素形成， “Twilight Spray” means a small amount of water spray on the trees every evening. Red Fuji apple tree twilight spray, can increase the weight of single fruit, colored early and gorgeous all red. The main reason is: ① can wash off the dust on the stems and leaves of fruit trees, is conducive to photosynthesis during the day; ② can be timely cooling, control of leaf respiratory consumption, increase nutrient accumulation, so the weight of fruit; ③ day and night temperature increases, Increased, is conducive to the formation of anthocyanins,