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什么叫合成料和半合成料?在国外,一般指不用马粪堆制的培养料叫合成料,少用马粪堆制的叫半合成料。在我国,合成料通常是指不用畜禽粪堆制的培养料。在世界食用菌生产中,蘑菇产量居首位。1981年世界食用菌总产量达135.7万吨,其中蘑菇就占94万吨,为食用菌总量的69.27％。目前已有75个国家和地区栽培蘑菇,美国为21.56万吨,是产量最多的国家,其次为法国、中国、英国、荷兰和意大利。随着蘑菇生产的发展,栽培面积不断扩
What is the synthesis of materials and semi-synthetic materials? In foreign countries, generally refers to the horse-manure heap system culture materials called synthetic materials, less use of horse manure heap system called semi-synthetic material. In our country, synthetic material usually refers to the culture material without livestock manure piles. In the world of mushroom production, mushroom production ranked first. In 1981, the total output of edible mushrooms in the world reached 1.357 million tons, of which 94 million tons were mushrooms, accounting for 69.27% of the total edible mushrooms. There are currently 75 countries and regions cultivated mushrooms, the United States is 215,600 tons, is the largest output countries, followed by France, China, Britain, the Netherlands and Italy. With the development of mushroom production, cultivation area has been expanding