They are suitable for picking in late September. Mature yam beans are between 2-5 centimeters in diameter. The shape is mostly kidney-shaped or ovoid, but also other irregular shapes, and the skin is usually brown or dark brown.

In the period of yam bean maturity, it is the underground yam rapid growth and development period, so you need to pick the yam bean as soon as possible, to avoid its absorption of more nutrients, affecting the growth of the underground yam, reduce the quality of yam beans.?

Yam beans need to be manually picked one by one from the yam vine when they are ripe, and care needs to be taken not to damage the yam's vine when picking, thus affecting the growth of the underground part.

Extended Information:

p>1, the growth of environmental resources distribution

Yam can be in the mountain slopes, valleys under the forest, streams, roadside scrub or weed growth, or artificial cultivation. According to the climatic conditions and the characteristics of yam growth, the formation of different yam cultivation areas throughout the country, specifically divided into North China, Northwest, East and Central China and Northwest Dry Zone.

2, yam bean nutritional effects

(1), enhance immunity. Yam beans contain protein, vitamins, and a variety of trace elements, can enhance their immune function.

(2), beauty and moisturizing due to the yam beans contain vitamin C, is an antioxidant, can eliminate free radicals in the body, play a role in slowing down the aging of the skin.

(3), supplemental nutrition yam beans contain mainly starch, sugar, a small amount of lipids, proteins and other nutrients, eat it not hungry.

Baidu Encyclopedia - Zero Yu Zi