The growth habit of yam

Yam is the dry rhizome of yam yam. Excavate from November to December, cut off the roots, wash the soil, scrape off the outer skin with a bamboo knife, and dry or dry it, which is the hairy yam. Choose thick hairy yams, soak them in clean water, heat them slightly, and cover them with a quilt to keep them moist and stuffy, then put them on a wooden board and knead them into a cylindrical shape, cut both ends evenly, dry them in the sun, and polish them. Light yam.

growth habit
Wild in sunny places in mountainous areas, it likes to be warm and hardy, and it can survive the winter in the north with a little mulch. Since yam is a kind of deep-rooted plant, the cultivation area should choose sandy loam with deep soil layer, good drainage, loose and fertile. The pH of the soil is neutral. If the soil is acidic, roots and nodules are easy to grow, which will affect the yield and quality of the roots. If the soil is too alkaline, the roots cannot fully grow downward. Therefore, in the cultivation in southern my country, appropriate amount of lime should be applied to the more acidic soil to neutralize the acidity of the soil.