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为了实现我国农业和农村跨世纪发展目标,农业部制定的“种子工程”实施方案提出到本世纪末主要农作物新品种更换一遍的任务。全国农业技术推广服务中心根据这一任务要求,从1995年开始,在全国开展了大规模的新品种区域试验、生产试验和大面积跨省区的新品种示范推广工作。从1995年到1997年3a(年)间,每年安排水稻、小麦、玉米、棉花试验约200个新品种,在全国20多个省(区、市)布点300～500个,筛选出一批综合性状好、增产潜力大的新品种,其中有23个品种已于1997年完成区试通过了国家级品种审定,更有一大批品种在各适应区通过了省级审定。
In order to achieve the goal of cross-century development of agriculture and rural areas in our country, the implementation plan of “seed project” formulated by the Ministry of Agriculture puts forward the task of replacing new varieties of main crops by the end of this century. According to this task, the National Agricultural Technology Extension Service Center started large-scale regional experiment of new varieties, production tests and demonstrations of large-scale demonstration of new varieties across the province from 1995 onwards. Nearly 200 new varieties of rice, wheat, corn and cotton were tested every year from 1995 to 1997 (year), and 300 to 500 in more than 20 provinces (autonomous regions and municipalities) across the country were screened out for synthesis Good traits, yield potential of new varieties, of which 23 varieties have been completed in 1997, the regional test approved by the national varieties, more a large number of varieties in the adaptation area passed the provincial-level validation.