Beans, also known as cowpea, cowpea and cowpea, are rich in protein and carotene and have high nutritional value. They are one of the popular vegetables widely planted in northern China.
Beans have strong adaptability to the environment, and can be cultivated in open field or protected field. At the same time, they can be produced all year round and can be listed all year round.
There is a wide range of soils suitable for the growth of beans, and all soils can be planted except those that are too sticky and low-lying and wet. Beans grow better in fertile loam or sandy loam.