Green vegetables? It is a kind of green food, which means that the pesticide residue index in vegetables after using pesticides in the production process is lower than the national or international standards. So? Green products? Is it relative, not absolute evaluation? Green products? It depends on other indicators: for example? Green products? Pollution to the environment, soil and groundwater in the production process, saving energy; ? Green products? It is safe and healthy for people and harmless to the environment during use. Green products? In the process of extinction, it has no pollution to the environment and can be rapidly degraded.
According to the requirements of temperature, green leafy vegetables can be divided into two categories. One kind likes cold, such as rape, celery, leek, lettuce, spinach, coriander, fennel, shepherd's purse, chrysanthemum brain and so on. The organ growth period of their products is suitable for spring and autumn and cool season, and the seedling stage has strong cold resistance. Most of them can be harvested in batches in the Yellow River Basin in the winter when they are open next spring. Among them, spinach, shepherd's purse and leek have strong cold resistance, and they can all overwinter in northern China. The other is water spinach, sunflower, amaranth, begonia purpurea, etc. It is warm and has certain heat resistance, and can be picked in summer. ?
Eating vegetables regularly can prevent cancer, and vitamin C contained in vegetables will form a kind in the body. Hyaluronic acid inhibitor? This substance has anti-cancer effect and can inactivate cancer cells. In addition, the crude fiber contained in vegetables can promote the peristalsis of the large intestine, increase the excretion of endotoxin in the large intestine, and achieve the purpose of preventing cancer. Providing nutrition and strengthening the body, green vegetables are one of the vegetables with the richest vitamins and minerals. If an adult eats 500 grams of green vegetables every day, he can satisfy vitamins, carotene, calcium, iron and so on. What the human body needs, provides material conditions to ensure the physiological needs of the body, and helps to enhance the immune ability of the body.