1. Growth characteristics: beans are planted on the balcony, roof or courtyard, and the optional cultivation containers include flowerpots, wooden pots, professional cultivation boxes, foam plastic boxes, etc. The depth of plough layer is 20-25cm. Spring and autumn sowing beans can be harvested less than half a month after flowering, and summer sowing beans can be harvested 6-8 days after flowering. Beans like temperature, heat and cold. The suitable growth temperature is 20-30℃, and the growth and development are poor below 15℃. The temperature is too high, exceeding 35℃, the quality is poor, and the leaves are yellow. Moderate light requirements, sufficient light and good growth. Water should be sufficient during the growing period, and it should be watered once every 1-2 days. Adequate water can promote the growth of plants.

Cultivation season: it can be cultivated in spring, summer and autumn, and it can be cultivated all year round in southern China, especially in spring and autumn. Beans themselves are resistant to high temperatures and grow well at 20 to 30 degrees Celsius. The planting time is suitable in spring and summer, and it can also be planted in autumn in southern China. Early or late sowing or low temperature and freezing weather will affect plant growth.

3, sowing method: beans can be broadcast live, or transplanted, mostly for live broadcast. It is better to grow plants directly at home and use them more as needed. Select cultivated soil, soak the seeds in warm water of about 30 degrees for 5 to 6 hours, and then point them in the cultivated soil, with 2 to 3 seeds in a cluster, and the appropriate covering thickness is 1-2 cm. Use a fine-hole watering can to make them permeable and keep them warm and moist. Dry seeds can be directly sown for 3-4 days, and 3-4 real leaves can be transplanted and planted. It should be noted that after sowing, it should not be watered excessively, but should be watered when the water on the surface of the basin soil is dry, so as to avoid seed rot and affect the germination rate.

4. Erect vines to lead vines: As a kind of trailing vegetable, it is necessary for beans to erect vines to lead vines. However, due to the light weight of pods, the requirements for the shape and weighing capacity of shelves are low. Courtyard or balcony planting can be adapted to local conditions, using iron fences or simply introducing bamboo poles. If you crawl on the ground, it will affect ventilation and easily lead to diseases and insect pests such as falling flowers.

5. Pruning and vine control technology: After pruning and vine control, legumes can have more lateral vines, more flowers and more pods through reasonable adjustment and distribution of nutrients in their bodies. At the same time, it is an effective way to prolong the harvest period by nursing the branches and leaves of beans, improving the ventilated and light-transmitting growth environment, and making the beans in a healthy state and strong branches under photosynthesis.