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一、整地 冬前翻地一次,以冻死越冬害虫。春天播种前(约3月20日左右),施足底肥(每亩施二铵15公斤,半车或一车拖拉机斗农家肥),再翻地一次,耙平土地。 二、播前开沟、施肥、灌水 播种西瓜前1～2天,按东西向开上口宽6厘米、深15厘米的沟,沟距1.4米。顺沟施肥(每亩施硫酸钾15公斤,二铵7.5公斤,尿素7.5公斤以及少量有机肥),然后大水灌沟。
First, turn the ground before winter to frostbite overwintering pests. Spring before sowing (about March 20 or so), Shi enough base fertilizer (15 kg per acre diammonium, a half-car or a tractor bucket farm manure), and then turn the ground once again, raking the land. Second, before sowing, fertilization, irrigation Watermelon 1 to 2 days before sowing, according to the east-west to open the mouth width of 6 cm, 15 cm deep trench, ditch 1.4 meters. Shun ditch fertilization (15 kg of potassium sulfate per acre, diammonium 7.5 kg, 7.5 kg of urea and a small amount of organic fertilizer), and then flood irrigation ditch.