根据西瓜不同生育时期的需肥特点来正确追肥,不但能满足西瓜生育期间对各种养分的需要,提高其品质和产量,而且还能提高肥料的利用率。在施足基肥的基础上,一般追三次肥即可。1轻施提苗肥在定植缓苗后,或直播处于4~5叶期,距根部10~15厘米处开弧形沟,每亩施尿素5千克,最好配成0.5%溶液浇施,渗下后覆土盖平。对弱小苗可适当增施“偏心”肥。苗期追肥切忌用量过多、距根太近, According to watermelon fertility characteristics of different growth stages to the correct top dressing, not only to meet the watermelon growth during the various nutrients, improve its quality and yield, but also improve fertilizer utilization. Shi Shi-based fertilizer on the basis of the general chase three times to fat. 1 light Shi Ti Miaofei Hile planting in the colonization, or live in the 4 to 5 leaf stage, 10 to 15 cm away from the root of open arc ditch, urea 5 kg per acre, preferably dubbed 0.5% solution pouring facilities, Infiltration after the cover soil cover flat. Weak seedlings may be appropriate to increase “eccentric ” fat. Avoid excessive use of seedling fertilizer, too close to the root,