① The main source of human daily diet provides essential nutrition for human body. Common wheat, barley, rice, chestnut rice, corn, sorghum, cabbage, lettuce, eggplant, potatoes and so on.

(2) Animals eat and maintain the balance of the food chain.

3 delicious healthy ingredients. For example, Radix Isatidis has a faint scent of grass, sweet taste, and has the effects of reducing fire, detoxifying and moistening the lungs; Chrysanthemum, mint, medlar, etc. , can benefit qi and blood, nourish the liver and improve eyesight, soothe the nerves and relieve fatigue, and prolong life; In addition, red beans, mung beans, black beans and so on. , can replenish vitality, strengthen bones and muscles, and make skin white, tender and smooth; There are also licorice, dried tangerine peel, hawthorn, etc., which can soothe the nerves and invigorate qi, promote blood circulation and reduce blood fat.

4 healthy slimming products. Such as lotus leaf, can effectively promote intestinal peristalsis, eliminate toxins, excrete urine, eliminate fat healthily and improve metabolism; There are also cassia seed, orchid seed, etc., which have strong antibacterial effect, can also lower blood pressure, blood lipid and prevent platelet aggregation.

⑤ Natural raw materials for skin care products. ? Nowadays, herbal skin care products are more and more sought after by everyone, such as a herbal medicine, Baique Ling and so on. ?

⑥ It has played a very important role in severe environmental problems in China, such as desertification control, expressway and railway slope protection.

Bahia grass, vetiver grass, alfalfa and Bermuda grass are widely used. By the way, it is also widely used in our daily necessities, such as the preparation of sofa hammocks, the weaving of straw sandals and so on.