1. Planting time of long bean: If long bean is planted in greenhouse, it can be planted at four o'clock a year, and the planting time can be arranged reasonably according to the weather and temperature in different regions before planting. Spring sowing is usually in February-March, summer sowing in May-August and autumn sowing in August-10. Planting method of long bean: selecting land and fertilizing. Long beans have strong adaptability to the situation and can be planted in any soil. If you want high yield, you should choose more fertile soil than plum. After choosing the planting site, prepare the soil and dig as deep as possible. In order to ensure soil fertility, an appropriate amount of fertilizer can be applied during soil preparation.

2. Sowing methods: Long beans have two different sowing methods: hole sowing and spread sowing. Hole sowing: dig holes at regular intervals on the whole plot, and each hole can be sown with 3-5 seeds. After fertilizing around, cover the soil. Pay attention to the fact that the fertilizer must not touch the seeds when fertilizing, so as not to burn the seeds, thus reducing the emergence rate. Sowing: Choose the nursery, sow the seeds into the soil, then cover the cage with film, remove the film after the seeds germinate, and water them properly. When the seedlings grow to 5-6cm, they can be pulled out and planted reasonably. If it doesn't rain in the future, they need to be watered in real time, otherwise the seedlings will die.

3. Post-treatment: Long beans need to be properly watered before flowering, especially transplanted seedlings, which is conducive to promoting them to grow new roots again. Bean seedlings develop in a creeping way. Generally, when the seedlings grow to about 30cm, they need to stand up, which is not only beneficial to increase the yield, but also convenient for later picking. It is necessary to apply fertilizer in real time at the flowering stage of long beans, which is beneficial to improve the pod setting rate of long beans and thus improve the yield of long beans.

4. Disease control: The main pests of beans are carposina, cowpea carposina and so on. The incidence of legumes is low, and root rot occasionally occurs. If symptoms are found in the process of growing beans, they must be treated in real time, and targeted drugs can be selected for prevention and treatment.