How to grow rose eggplant

Rose eggplant, the name of traditional Chinese medicine. It is the root and seed of Roselle of Malvaceae. It was introduced into Fujian, Taiwan, Guangdong, Hainan, Guangxi and southern Yunnan. So, how to grow rosette?

First, how to grow rose eggplant?

1. Soil requirements

Roselle is a plant that is afraid of waterlogging and drought, so it is appropriate to choose sandy loam with sunny, deep soil layer and good drainage. 1000-1500 kg of farm manure was applied per mu.

2. Planting density

According to the soil fertility, the plant-row spacing is 0.6-0.8 cm, and it is suitable to sow 1300-1500 ponds per mu.

3. Sowing time

Soaking seeds for 12 hours before sowing, sowing seeds from mid-late April to early May is more suitable, sowing 3-4 grains per pond; transplanting seedlings in a nutrition bowl, transplanting in time when the height of a seedling is 12-15 cm.

4. Field management

(1) timely pest control: emergence 5-7 days after sowing, spray 2.5% cyhalothrin 50ml / mu to control pests. Spraying pesticides must be carried out before flowering, and it is strictly forbidden to spray pesticides during flowering, so as not to leave poison in the calyx and affect the quantity of products.

(2) suitable time seedling, fixed seedling, tapping: when the seedling grows to 10-15 cm, it is necessary to carry out inter-seedling, weak seedling and diseased seedling, leaving only one strong seedling in each pond, and the rest is allocated to fill the missing pond, so that the seedling should not be too late, otherwise it will affect the growth of the seedling. When the seedling height is 80 cm, it is necessary to sharpen the seedlings to promote strong flowers and multi-calyx fertilizer.

(3) fertilization and irrigation: rose eggplant does not need great water and fertilizer, but the land with poor soil fertility should be fertilized properly. 20 kg of compound fertilizer, 8 kg of urea and 5 kg of zinc fertilizer were applied per mu to raise seedlings, and 30 kg of compound fertilizer and 20 kg of potassium sulfate per mu before flowering to meet the needs of flowering.

(4) Intertillage, weeding and drainage: plant height is 30 cm, combined with topdressing and soil cultivation, intertillage is carried out for 2 or 3 times at the right time. In summer, because Rain Water is numerous and overgrown with weeds, weeds should be pulled out manually to avoid competing with rose eggplant for fertilizer and water. In the rainy season, attention should be paid to digging ditches and draining waterlogging to prevent and control the occurrence of dead seedlings and root rot.

5. Harvest and dry

Rose eggplant mainly collects sepals. In the middle and late October, when the seeds in the flower bag become hard or brown, cut off the fruit branches, remove the calyx together with the fruit, and remove the calyx after shrinking. When removing the calyx, the round fruit can be pushed out with a thin metal tube. The calyx should be kept intact and cannot be broken and peeled off. The rose eggplant is acidic and easily moldy, so it should be dried in time.