大麦是世界上重要粮食作物之一,其播种面积仅次于小麦、水稻和玉米。大麦生育期短,适应性广,除南极洲外,从南纬42°到北纬70°均有种植。1985年世界大麦收获面积为11.66亿亩,单产150公斤。目前,世界上种植大麦最多的国家是苏联,加拿大和美国次之。另外,丹麦、民主德国、捷克、波兰等国种植亦较多。大麦单产以瑞士(376公斤)最高,荷兰(340公斤)和英国(339公斤)次之。 30年代,我国大麦种植面积曾达9810万 Barley is one of the most important cereal crops in the world with the sown area next to that of wheat, rice and corn. Barley has a short growth period and wide adaptability. Apart from Antarctica, barley has been planted from 42 ° latitude to 70 ° north latitude. World barley harvest in 1985 an area of ​​1166000000 acres, yield 150 kilograms. At present, the countries that grow most barley in the world are the Soviet Union, Canada and the United States. In addition, Denmark, Democratic Germany, the Czech Republic, Poland and other countries planted more. Barley yields were highest in Switzerland (376 kg), the Netherlands (340 kg) and the United Kingdom (339 kg). In the 1930s, China’s barley area had reached 98.1 million