1. The sowing date of Trichosanthes kirilowii seed propagation is mid-April in the north; February-March in the south.
Choose large and full seeds, soak them in warm water (about 40℃) 1 day and night, take them out and drain them to sow. According to the row spacing of the whole bed of 20cm×20cm, sow 2-3 seeds in each hole, cover the soil and water. In Hebei Province, in late May, holes were dug on wheat beds with row spacing of 20cm, plant spacing 15cm and pit depth of 3-5cm. When harvesting wheat, leave the stubble higher for the benefit of stems and vines. Breeding with seeds, flowering and fruiting are late, and male and female plants are difficult to control, so this method is suitable for collecting Trichosanthes kirilowii.
2. The planting time of rooting propagation is from March to April in the north and the end of 10- 12 in the south.
Dig out the perennial roots of Trichosanthes kirilowii, select the roots with buds and no pests and diseases, with a diameter of 3-6cm, and cut them into small pieces of 5-6cm. Most of the roots of female plants are selected, and the roots of male plants are properly matched (per 667 square meters 10 plants) to facilitate pollination. Ditching shall be conducted according to the row spacing of 1.5-2M, and the plant spacing shall be set. Or covered with plastic film after planting, which can germinate early and blossom and bear fruit early. 50 kilograms of seeds are needed for every 667 square meters. Production is mainly based on rooting propagation.
Extended data:
1, germination method
When planting Trichosanthes kirilowii, it is necessary to take the seeds out of the ripe fruits, then soak them in warm water of 40-50 degrees for one day and one night to make them absorb enough water, and then bury the Trichosanthes kirilowii seeds in wet sand to accelerate germination, and sow them after they are exposed.
2. Soil conditions
Trichosanthes kirilowii is suitable for growing in sandy loam with deep soil layer and good drainage. When cultivating Trichosanthes kirilowii, it is necessary to deeply cultivate 25 cm soil to make the soil more loose and breathable, and then apply decomposed farm manure to the soil to improve soil fertility and provide nutrients for Trichosanthes kirilowii.
3. Sowing method
When the Trichosanthes kirilowii is sown and propagated, plant seeds should be sown with sand on the soil surface, then covered with 3-4 cm thin soil and watered again to keep the soil moist. After the emergence of Trichosanthes kirilowii, it is necessary to apply phosphorus and potassium fertilizer once to accelerate the growth of Trichosanthes kirilowii.