1. seed treatment: seeds should be treated before sowing. First, the seeds should be soaked in warm water of 50-60 degrees. In order to prevent the water temperature from being destroyed, the seeds should be constantly stirred during soaking. When the water temperature drops to about 30 degrees, the seeds are taken out and cleaned, then soaked for 5-6 hours, so that the seeds are fully absorbed, taken out, dried, wrapped with wet towels, placed in a greenhouse environment of about 25 degrees to accelerate germination, and can be planted when they germinate.

2. Sow and raise seedlings. When sowing, the seedbed should be prepared first, organic fertilizer and loose soil should be mixed, and appropriate amount of calcium phosphate and plant ash should be added, so that high-quality culture soil can be made. When sowing, pour enough water into the soil to make it moist, and then put the seeds on the table according to a certain spacing. Remember to put down the sprouted end and cover it with a layer of shallow soil.

3, field management, when the seedlings grow to 2-3cm, they can be planted. After planting, they should keep a high temperature and high humidity environment to promote the slow growth of seedlings. The temperature should be 25-30 degrees during the day and 15-20 degrees at night. When the root melon begins to swell, it should be watered and topdressing in time. Generally, 30-40 kilograms of compound fertilizer is applied per mu, and topdressing is applied when the second melon expands. At this time, 40-50 kilograms of urea should be applied per mu, and then fertilizer and water should be applied once a month.

4, auxiliary pollination, in order to improve the yield of zucchini, bees or artificial pollination can be used, and artificial pollination is generally the best in August 8- 10/0. When pollinating, check whether the male flowers produce pollen, gently wipe the stamens of the male flowers with your hands, if there is yellow powder, you can start pollination, then pick the male flowers, remove the petals, keep the stamens, and gently rub the stamens at the stigma of the female flowers. Or you can dip a cotton swab in powder and smear it on the stigma of the female flower. Remember that pollination must be uniform, not in rainy days or afternoon, otherwise it will easily grow into deformed melons.

5. Planting time: Cucurbita pepo is a cold-resistant and heat-resistant vegetable, which can be sown in spring or autumn with a growth temperature of 20-25℃. Therefore, sowing in early May in spring and early September in autumn is not conducive to germination and emergence.