Sowing variety selection. Spring planting bitter gourd generally has a long harvest period, and should use varieties with strong branching ability and good heat resistance. Soaking seeds and germination. Bitter melon skin is thicker, not easy to absorb water, and it is difficult to germinate. It can be scalded with warm water first, and then soaked for more than 12 hours after it is naturally cooled. sowing. Put the prepared nutritious soil into the seedbed, the soil thickness is about 10cm, water the water, and the seeds are broadcasted to the nutrient soil. After sowing, the cover soil is about 2~3cm, and then sprayed with a new high-fat film to protect the surface layer density and increase the emergence rate.
Manage seedling management. Appropriately reduce the temperature after emergence, the daytime temperature of the seedbed is kept at 25 °C ~ 30 °C, 15 °C ~ 18 °C at night, moderate watering to maintain soil moisture. Timely weeding, ventilation and moisturizing, timely spraying and sterilization to prevent disease. Seedlings can be transplanted and planted with 2 to 4 true leaves. Refining the seedlings about a week before planting. Colonization. The planting period is generally carried out when the soil temperature is stable above 12 °C, but it should be as early as possible to try to colonize at an appropriate time. The depth of planting seedlings is such that the seedling cotyledons are flat on the ground.
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