What are the planting techniques of cowpea on balcony and how to plant cowpea in pot?

Cowpea-seedling root regeneration ability is weak, so direct seeding is often used. The suitable temperature for germination is 25 ~ 30℃, and the temperature should be above 20℃ when sowing. (1) Before sowing, water the pot soil, 3-4 grains per hole, and cover it with soil about 2-3 cm. (2) After germination, remove the weak seedlings and leave 2-3 plants in each hole; When there are 3 ~ 4 true leaves, then thinning 1 seedling, leaving 1 ~ 2 plants per hole. If transplanting is needed, two real leaves will grow around 3-4 weeks after germination. 1 compound leaves can be planted, then watered, and normal management will be carried out after survival. Cowpea-daily management ① when there are 5 ~ 6 real leaves, a bracket should be set up. At first, pull the vine counterclockwise and fix it with a rope, usually at noon or afternoon on a sunny day; The later winding ability is very strong, and manual assistance is not needed. ② Fertilization should be reduced in the early stage, and applied around 1 week after survival. Apply 1 times thin decomposed organic fertilizer. Fertilize 1 time every 7 ~ 1 day from the bud stage to the mature stage of Climbing J, and pay attention to increasing the application of phosphorus and potassium fertilizer. The proportion of potassium fertilizer, continuous fertilization 2 ~ 3 times. (3) Warm-loving, the growth temperature is 2o ~ 3o℃, the growth is slow below 15℃, freezing injury occurs below 5℃, and it is resistant to high temperature. Flowers and pods can still bloom at 35℃, but the quality is not good. Drought tolerance is greater than waterlogging tolerance, so water should be controlled properly in the early stage. When about half of the inflorescences on the main vine begin to pod, they should be fully watered to ensure the soil is moist. (4) When the main vine grows the first inflorescence, all the lateral branches below the inflorescence should be removed, and the lateral branches above the inflorescence should be cored, leaving two leaves at the base; When the main vine climbs over the scaffold, it is topped to promote the lower lateral branches to germinate flower buds. ⑤ Inflorescence is racemose, with 2 ~ 5 pairs of flowers, but often only L pairs of pods, and the second pair of flower buds often begins to develop or bear fruit after the first pair of pods are picked; If there is enough fertilizer and water and proper maintenance, all the flowers on the inflorescence can bear pods. Cowpea-7 ~ 1 day after flowering, when the pods are full and the seeds are slightly exposed, you can pick them. When picking, break it at about 1 cm from the base, and be careful not to hurt other flowers. Cowpea-delicious nutrition, invigorating stomach and kidney, contains protein which is easy to digest and absorb, and also contains a variety of vitamins and trace elements. The phospholipid contained in it can promote insulin secretion and is an ideal food for diabetic patients.