1. Soil preparation: Before soil preparation, decomposed manure or compost1000 ~1500kg should be spread every 667m2. Then plough deeply for 20 ~ 25 cm, rake finely and level. The northern region, especially the northeast region, is suitable for ridge farming, but the number of seedlings protected by ridge farming is small and the yield is low. In the south, many crops are planted, the width of the border is 120~ 150 cm, and the height is15 ~ 20 cm, and the border can also be made flat, and the growth depends on the terrain. The distance between the beds is 30 cm.
2. Propagation method: Foeniculum vulgare is mainly propagated by seeds, and can also be propagated by individual plants. The results of ramet propagation are early, but the yield decreases after plant aging, so it is not often used.
1. Seed propagation: Foeniculum vulgare is sown in spring and autumn in the south, with spring sowing in February-March and autumn sowing in September-1October. Autumn sowing is suitable for the purpose of producing fennel oil from stems and leaves. In the north, we can only sow in spring, not in autumn, and it will be carried out from mid-March to mid-April in spring.
Ridge farming in the north can be furrowed and drilled on the ridge or planted in holes with a distance of 30 cm between plants. Sow10 ~15 seeds per hole, and cover with soil1.5 ~ 2 cm.
Border cropping can adopt different planting densities according to different cultivation purposes and soil fertility. For the purpose of harvesting stems and leaves, and the soil fertility is low, the planting density can be higher. 30 cm row spacing drill sowing or 30 cm× 25 cm row spacing hole sowing can be used, and the seed consumption per 667 square meters is about 0.7 kg. For the purpose of harvesting fruits, and the soil fertility is high, it can be planted slightly thinly, and the row-plant spacing can be increased to 50 cm ×30 cm. The sowing amount per 667 square meters is about 0.5 kg. If the soil is dry, water it before sowing, and sow it when the soil humidity is suitable. Cover the soil with a thickness of1.5 ~ 2 cm, and cover the border with grass to keep moisture, which is beneficial to seedling emergence and seedling protection.
2. Propagation by dividing roots: Foeniculum vulgare L. cultivated in the south overwinters and becomes a perennial plant. After 3-4 years, it can propagate by dividing plants.
The specific method is: in late autumn, after harvesting fruit or before budding in spring, dig out the roots and divide them into several roots with buds. Planting holes on the prepared land according to the row spacing of 50 cm× 30 cm, and covering the soil with a thickness of 5 ~ 6 cm. In case of drought, water after planting.