Seeding and seedling cultivation According to the production practice in recent years, the suitable sowing date of autumn pumpkin is from mid-July to early August. The pumpkin seeds are first soaked in hot water at 50 ° C for 10 minutes, then immersed in warm water for 8 hours, and germinated in a 26 ° C - 30 ° C environment. It is best to use seedlings for seedlings. Each seed is sown with germinated white seeds. The radicle is covered with 1-1.5 cm thick fine soil. After sowing, 50% carbendazim 1500 times solution is used to pour the seedbed and then cover. 1 layer of straw or weeds, when the seedlings are 1/3, the cover is removed. Seedling age 15-17 days later. It can also be broadcast live, not soaking seeds.
Before the land preparation and planting of cultivated land, 2,500 kg of farmhouse fertilizer per 667 square meters, 25 kg of potassium sulfate compound fertilizer, 20 kg of potassium sulfate, and deep cultivation. Then ridges, ridge width 80 cm (including ditch), ridge height 12-15 cm, made turtle shape. Planting a row in a ridge with a row spacing of 2.5-3 meters and a plant spacing of 0.5 meters. Planting should be carried out after 5 pm or on cloudy days. After planting or direct seeding, pour water once to dilute the seedlings or emergence.
Field management artificial pollination method is to pick a male flower that is open, remove the petals directly on the female flower, so that the pollen falls on the head of the female flower; or remove the stamen of the petal and gently apply it on the head of the female flower. The purpose of artificial pollination. In addition, when the pumpkin grows 3-4 true leaves, spray 2,500-fold dilution of ethephon to promote the early opening of the female flowers of the melon seedlings. Fertilizer management can be applied after the second melon is sitting according to the growth of the melon.
Pests and diseases The main pests of autumn pumpkins are aphids, thrips, melons, and leaf miners. When aphids, thrips, and spider mites occur, they can be treated with 10% Dagong 2000 times liquid or 2000 times as poisonous medlar. The leaf miner can be controlled with 10% of the fluke amine 1000 times solution. For the 667 square meters, use 5% Regent 20 ml plus 25 kg spray to control. The virus disease can be sterilized to 800-1000 times plus 20% virus A to form 300 times liquid control.
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