2, soaking seeds to accelerate germination. Sunbathing pumpkin seeds for 2 days, putting them into hot water at 50℃, stirring constantly, soaking the seeds 15-20 minutes when the water temperature drops to about 30℃, naturally cooling, and continuing soaking the seeds for 7- 12 hours. Germination is accelerated after seed soaking, and the germination temperature is maintained at about 30℃, and germination can be achieved in two days.
3. Fine soil preparation. Choose plots with good drainage, low groundwater level and fertile soil to plant pumpkin seedlings. Divide the border according to the width of 1.5 m, open the border ditch, with the width of 30 cm and the depth of 15-20 cm, and open the drainage ditch on all sides.
4. Sow in time. In order to advance and extend the time to market, sowing is generally started in March, and can be carried out in batches from then on until August. Sowing ditches are opened according to the row spacing of 20 cm, the plant spacing is 10 cm, and two seeds are planted in each hole. After sowing, the seeds are watered and covered with nutrient soil with a thickness of 2 cm.
5, timely fertilization, sufficient base fertilizer. 2,000-2,500 kilograms of decomposed cow dung or 2,500-3,000 kilograms of soil miscellaneous fertilizer and 20 kilograms of phosphate fertilizer are put into each mu. After sowing, drench thoroughly with decomposed manure or biogas slurry water, then spread it on the border with plastic film, and compact and keep warm with soil around it. Let the seedlings grow under the film after emergence. Top dressing generally uses decomposed human and animal manure, and it is necessary to ensure sufficient manure supply frequently to promote the rapid growth of melon seedlings. Re-apply available nitrogen fertilizer to plants in time after each harvest to promote early axillary buds.
6. Harvest in time. When the melon seedlings grow to 40 cm high and have 5-6 true leaves, they can be harvested in batches, leaving 1-2 true leaves at the base and cutting off the upper tender seedlings. Spraying 80 mg/kg of "920" solution 5-7 days before each harvest can increase the yield by more than 30% and reduce the formation of crude fiber at the basal node.