The growth period of pumpkin is different, and the absorption of nutrients is also different. The growth of pumpkin in seedling stage is very small, and the amount of fertilizer required is also small. The absorption of nitrogen in the fruit expansion period increases sharply, and the absorption law of potassium and nitrogen is basically the same. The amount of phosphorus absorbed is less increased. After transplanting, the root water is drenched. The urea water used after the slow seedling is combined with the new high-fat film to promote seedling growth 1-2 times.
Fertilizer management: Topdressing is generally divided into three times. For the first time, before the vine or period of closure, combined with cultivating and weeding, it is necessary to apply organic fertilizer. The second time in the fruiting stage, nitrogen fertilizer is applied, and the growth of the third plant is in the third Second, the application of organic fertilizer and chemical fertilizer mixed fertilizer when the fruit is in the fruiting period. During the fruit expansion period, more water is needed. It is necessary to timely irrigate the water, and spray the strong melon in the young melon to increase the nutrient flow and promote fruit development and expansion. The occurrence of autumn plant virus disease has a great relationship with the supply of fertilizer and water in the early growth stage. Multi-leaching water fertilizer promotes the rapid growth of plants, avoids water shortage and lack of fertilizer, and can effectively alleviate the occurrence of viral diseases. Spring planting has more rainwater, and drainage should be done to reduce the humidity in the field. In the middle and late stages of autumn planting, there is less rain, so we must do a good job in furrow irrigation.
Pruning vines: When the pumpkin vines are stretched to about 60 cm, the first vine is pressed. The shallow ditch of about 7 cm deep can be dug by the vines. The vines are placed in the ditch and pressed with the soil. The top of the growth should be exposed. 15 cm, after every 30-50 cm pressure vines once, generally vines 3-4 times. The whole branch mainly removes some side vines, overlapping vines, and weak vines of the pumpkin. The top spray sprays the flower wangwang No. 3 to inhibit the growth of the vines, forcing the main nutrient to turn to the young fruit development system, enhancing the fruit's swelling vitality and avoiding the leaf hypertrophy. Phenomenon, improve field permeability.
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