Cultivation of Solanum officinarum

Climate soil prefers a warm and humid environment. Shade is needed in the seedling stage, and adult trees are happy in the sun. The suitable annual average temperature is 18-22 ℃ and the annual rainfall is 1800-2000 mm. It is not strict with the soil. It is better to plant red loam or yellow loam with deep, fertile and well drained soil.

Land preparation selection of good drainage and irrigation, fertile sloping land, full reclamation deep turning, broken soil leveling. The nursery ground was raised into a seedbed with a height of 20 cm and a width of 1.2 m. The woodland should select gentle sloping land and prepare the land in a strip along the contour line, with a bandwidth of about 1 meter, and then dig holes according to row and plant spacing of 3 × 2 meters. The hole is 50 cm wide and 40 cm deep.

Planting (1) seed propagation and seedling raising: select mature and full fruits to collect seeds in time. Litsea cubeba has a dormant period, and the seeds that have been washed and dried should be sown after a winter storage. After raising seedlings for 1-2 years, when the height of the seedlings is 60-70 cm, they can be planted out of the nursery. (2) planting: planted in early spring or late autumn. The roots should be trimmed after seedling, with soil or mud roots, planting 2-3 plants per hole, covering the soil firmly after planting, and pouring enough water to fix the roots. It can also be used for direct seeding afforestation. The specification of digging holes is 30 × 30 × 15 cm. Each hole is sown with 6 × 8 seeds, and the soil cover is 2 cm thick.

The tending management should be strengthened in the young forest stage of field management, such as ploughing, weeding and topdressing 2 or 3 times a year, mainly nitrogen fertilizer. Short stalk crops can be intercropped between rows. After growing up, ploughing, weeding and topdressing should be done at least once a year, and the top of the trunk of the plant should be cut off to promote dwarfing plants and facilitate fruit harvest. When entering the flowering stage, the female and male plants should be identified. Generally speaking, the male plant is pollinated by 8% to 12%, the excess male plant is removed, and the female plant is replanted in time. There are red spiders and leaf rollers in pest control, which can be sprayed with 1000 times of dimethoate EC or 3000 times of dichlorvos.