粮食作物在过去、现在和将来都是人类最重要的农作物。近十年,世界粮食生产增长比较快,在粮食作物中,以小麦和水稻增长幅度较大。国外认为:“以培育和引进高产品种为中心,加强肥、水、药和机械化等增产措施”是一九六八年以来,以稻麦为主体的粮食作物较大幅度增长的主要原因。 The past, present and future are the most important crops of humankind. In the past ten years, the world’s grain production grew at a relatively fast pace. In the food crops, the growth of wheat and rice was relatively large. In foreign countries, “increasing production of fertilizers, water, medicine and mechanization with a view to cultivating and introducing high-yielding varieties” is the major reason for the substantial increase in grain crops mainly comprising rice and wheat since 1968.