Virus-free Beijing 553: the top leaf is purple, the leaf is green, the leaf shape is shallow and concave, the plant type is creeping, the stem color is purple, the stem is stout, the vine length is 2.53 meters, the base is branched, the potato shape is long and spiral, the skin color is yellow and brown, and the flesh color is apricot yellow. Good germination, fresh potato yield of 6000 kg, dry cutting rate of 25%, early potato production, rapid expansion, neat concentration, more resistant to black spot and stem nematode disease, drought and fertilizer tolerance, more resistant to barren. Cooked food is soft and sweet, raw food is crisp and sweet, and can be steamed and roasted. It is the main variety for processing preserved potatoes.
Hebei Zaohong: average germination, short vines, many branches, thin stems, heart-shaped toothed leaves, light green top leaves, leaf color, pulse color and stem color; Potato is spindle-shaped, with purple peel and orange pulp, with 3-4 tubers per plant, high yield of large and medium-sized potatoes and moderate taste. High resistance to root rot, stem nematode and black spot, good disease resistance. Generally, the yield is increased by 25% compared with Xu Shu 18.
Introduction of sweet potato: sweet potato (scientific name: sweet potato (L.) Lam. ), also known as Redjade, Sweet Potato, Sweet Potato, Sweet Potato, Yam (Hebei), Sweet Potato (North), Sweet Potato, Sweet Potato, Sweet Potato, Sweet Potato. The sugar content reached 15%-20%. Has anticancer, heart protecting, emphysema and diabetes preventing, and weight reducing effects. Li Shizhen's Compendium of Materia Medica in Ming Dynasty recorded that "sweet potato can tonify deficiency, strengthen spleen and stimulate appetite, and strengthen kidney yin", and said that people in the sea can eat for a long time. Chinese medicine regards sweet potato as a good medicine. Wait a minute.