1, lentils are usually cultivated in the open field in summer, and can be guaranteed one after another after 1 middle period, but the sowing time is different in different regions due to different climates. For example, lentils are planted in the Yangtze River valley from May to July, while most of them are planted in June in North China.

2. Lentils can be divided into white lentils, green lentils and purple lentils according to pod color, of which green flat pods are thin and crisp; Purple flat is similar to white lentils, with thick pods and soft ripe.