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水稻是全世界将近一半人口的主粮.据统计目前全球水稻栽培面积约为每年1.62亿公顷[1],其中亚洲最多(1.43亿公顷)占88%,非洲和美洲其次,分别占6.4%和4.4%.绝大部分水稻生产国家为发展中国家,经济发展相对落后,人口密度高而且增长速度快,不少区域还因土壤质量差、肥力贫瘠,基础设施落后,导致自然灾害频发,粮食短缺问题严重.更为严峻的是,世界人口还将继续增长,估计
Rice is the staple food for nearly half the world’s population, and according to statistics, the current global rice cultivation area is about 162 million hectares per year [1], with the highest in Asia (143 million hectares) accounting for 88% and the second in Africa and the Americas accounting for 6.4% and 4.4% The vast majority of rice-producing countries are developing countries with relatively backward economic development, high population density and rapid growth. In many areas, due to poor soil quality, poor fertility and backward infrastructure, frequent natural disasters, food shortages The problem is serious.More serious is that the world population will continue to grow, it is estimated