What is yam? How many kinds of yam are there?

When raising Begonia in four seasons, it should be placed in a bright and sufficient place, and more sunshine will blossom smoothly. But the strong light in summer should be blocked. Temperature should pay attention to high temperature in summer and low temperature in winter, sprinkle water frequently in summer to cool down, and move indoors in winter. It has a long flowering period and consumes a lot of nutrients, so it needs to be fertilized regularly, every 12 days in the growing season. In addition, but also timely pruning, especially young to pinching, so that the plant shape will be more plump.

1. what is

1. Form: Yam is a kind of plant that can be used as both food and medicine. It is very common in life.It belongs to the dry rhizome of Dioscoreaceae plants, the shape is cylindrical, generally straight, slightly curved, the outer epidermis is yellow-white or yellowish, there are longitudinal grooves, there are some fibrous roots, the length is about 15-30 cm, the diameter is about 1.5-6 cm.The texture is relatively solid, relatively heavy, the inside is white, the taste is relatively light, slightly sour, and sticky.

2. Origin: Its main origin is Hebei, Henan and Guangxi, and the rest of Zhejiang, Hunan, Sichuan, Shandong, Guizhou, Shanxi and Shaanxi are also cultivated.

3, habits: It likes to grow in warm places, like adequate sunshine, for the soil requirements fertile, loose, but also need good drainage, winter fear of cold climate, can not stand frost.

2. there are several

Yam is mainly divided into two species, one is common yam, the other is field yam, and there are five varieties.Among them, the main varieties are Ma yam, iron stick yam, water yam, small white mouth yam, fine wool yam and so on, these varieties are more common.

Chinese yam