The list is as follows:
1, cotton
Cotton is the seed fiber of Malvaceae, which is native to subtropical zone. The plant is shrubby and can grow to 6 meters high in tropical areas, usually 1 to 2 meters. The flowers are milky white, turn dark red shortly after flowering, and then wither, leaving a small green capsule called cotton boll. There are cottonseed in the cotton boll,
The fluff on cottonseed grows from the cottonseed hulls and fills the inside of cotton bolls. When the cotton peach matures, it splits, revealing soft fibers. The fiber is white or yellowish white, about 2-4 cm (0.75- 1.5 inch) long, containing about 87-90% cellulose, 5-8% water and 4-6% other substances. The countries with the highest cotton production are China, the United States and India.
2.cabbage
Cabbage likes warmth, humidity and plenty of light. It is cold-resistant and has the ability to adapt to high temperature. The optimum growth temperature is 15-20℃. Fleshy stems are prone to fibrosis when exposed to high temperature above 30℃ during the expansion period. The choice of soil is not strict, but it is suitable for planting in clay loam or sandy loam with rich humus. Cabbage seedlings must be vernalized at 0- 10℃, and then bolting, flowering and fruiting under long sunshine and suitable temperature.
Step 3: potatoes
"Potato" is named because it looks like a bell. This title was first seen in "Songxi County Records Food Goods" during the reign of Kangxi. Potatoes are called in northeast and Hebei of China, yam eggs in north China, potato or potato in northwest and Hubei, potato or potato in Jiangsu and Zhejiang, potato in Guangdong, potato in eastern Guangdong, potato in eastern Fujian and potato in northwest Hubei.
4. alfalfa
Alfalfa (Mü xu) is the general name of alfalfa, commonly known as cauliflower, and it is a perennial flowering plant. One of the most famous is alfalfa as a pasture. There are many kinds of alfalfa, most of which are wild medicinal materials.
There are three main kinds of alfalfa produced in China. It has high nutritional value, and has the effects of clearing spleen and stomach, benefiting large intestine and reducing bladder stones. Alfalfa contains the most abundant vitamin K, which is higher than all vegetables. Others such as vitamins c and b are also quite rich. Mainly used for livestock feed. It was introduced from the western regions in the Western Han Dynasty.
5. Chrysanthemum
Chrysanthemum is a valuable ornamental flower cultivated by long-term artificial selection. It was introduced to Japan from China as an ornamental chrysanthemum around the eighth century. At the end of 17, Dutch merchants introduced China chrysanthemum to Europe, to France in 18 and to North America in the middle of 19. Since then, chrysanthemums in China have spread all over the world.
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