选用对路品种是实现小麦高产的关键近几年来，廊坊市实现小麦高产田的面积不断增长。据统计，１９８８年亩产４００公斤的地块仅有１５．５万亩，至１９９２年达５５．５万亩，１９９３年增至７１万亩。同时，达到３５０公斤以上的地块有１１０万亩。据１９９２－１９９３... Selection of the right varieties is the key to achieving high yield of wheat In recent years, Langfang City, the area of ​​high yield of wheat growing. According to statistics, there were only 155,000 mu of land in 1998, yielding 400 kilograms per mu, up to 555,000 mu in 1992 and 710,000 mu in 1993. At the same time, there are 1.1 million mu of land reaching 350 kilograms. According to 1992-1993 ...