与土晒场相比,水泥晒场雨后干得快,不需经常保养维修,延长了晾晒时间,争取了麦收期间的宝贵农时。另外还能保持品种固有的色泽,保持种粮的清洁,是现阶段种子生产基地的必备设施。实践中,曾出现了水泥场晾晒的小麦种子发芽率反而低于土场的情况,为此,笔者进行了有关调查。在麦收开始时(7月25日),对两种场面温度进行了对比测定:早8时天空薄云无太阳,无风天气下气温29℃,土场面30℃,水泥场面31℃;中午 Compared with the soil drying field, cement dry faster after drying, do not need regular maintenance, extending the drying time, for the wheat harvest precious farming time. In addition, it can maintain the inherent color of the variety and maintain the cleanliness of the grain. It is an essential facility for the current seed production base. In practice, the germination rate of wheat seeds dried in the cement field has been lower than that of the soil field. Therefore, the author conducted the investigation. At the beginning of the wheat harvest (July 25), the two kinds of scene temperature were compared and measured: as early as 8:00 sky thin cloud without the sun, windy weather temperature 29 ℃, soil surface 30 ℃, cement scene 31 ℃; noon