Because after planting in yam bean, it usually takes two years to harvest the real yam. Because the yam planted in the first year is short in length, thin and bad in taste, it is generally necessary to leave seeds in the second year to grow qualified and delicious yam, so yam bean is hardly used as a seed for planting yam.
Does yam bean grow from Chinese yam? Yam bean grows from the vine of Chinese yam.
Yam bean generally grows between the vines or axils of yam, and its shape is mostly kidney-shaped or oval. Accurately speaking, yam bean grew from a yam tree, not a yam, because yam bean didn't grow underground.
What's the difference between yam bean and Yam? There is little difference between yam bean and Yam in taste and nutritional components, but the difference mainly lies in appearance.
Yam: The shape is generally 30-60 cm long, and some yams can grow to 100 cm, while the skin color is generally brown.
Yam bean: yam bean is very small, mostly kidney-shaped or oval. Some yam bean is about one or two centimeters in diameter, the largest is four or five centimeters, and the skin is brown or dark brown.
4 When to pick yam bean is generally the end of September 65438+1early October.
Yam bean generally grows on yam trees, and yam begins to flourish when it is about to mature, but late September is the period of rapid growth and development of underground yam. Therefore, the more yam bean grows, it will affect the absorption of nutrients by Chinese yam, and then affect the quality of yam bean. Therefore, yam bean usually picks yam in advance when it is ripe, so as not to affect the quality of yam.