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据估计,全球存在的植物有25—30万种,约有5万种可以食用,目前已有数千种用作人类的食物和各种工农业原料。我国是世界作物多样性中心之一,现已查明起源于我国的作物约有200余种。我国栽培的各种作物约有600种,其中粮食作物30余种,经济作物约70种,果树约140种,蔬菜约180多种,牧草约50种。我国作物种类之多居世界各国前列。数千年来,我国农民为世界创
It is estimated that there are between 250,000 and 300,000 plants around the world and about 50,000 are edible. There are now thousands of foods and various industrial and agricultural raw materials used for human consumption. As one of the centers of crop diversity in the world, China has now identified about 200 species of crops originating in our country. There are about 600 kinds of crops cultivated in our country, among which there are more than 30 kinds of food crops, about 70 kinds of cash crops, about 140 kinds of fruit trees, about 180 kinds of vegetables and about 50 kinds of forage grass. China’s crop species in many of the world’s forefront. For thousands of years, the peasants in our country have created a world record