朝阳是个干旱地区,过去没有种过冬小麦。无产阶级文化大革命后,随着“农业学大寨”运动的深入发展,才开始试种冬小麦,有成功的经验,也有失败的教训,而其中最重要的一条就是安全越冬问题,这是决定发展冬麦生产的关键。 1972年秋,我们试种了500多亩冬小麦,返青300多亩,平均亩产达400斤;1973年秋扩种到5,000多亩,返青50%,平均亩产350斤;1974年 The sunrise is an arid area where no winter wheat was planted. After the great proletarian cultural revolution, with the deepening development of “learning from agriculture in Dazhai”, we began to test winter wheat. There are successful experiences and lessons of failure. The most important one is the issue of overwintering. This is the decision to develop Winter wheat production key. In the autumn of 1972, we planted more than 500 mu of winter wheat and returned to 300 mu, with an average yield of 400 kg. In the autumn of 1973, the plant expanded to 5,000 mu and returned to green with an average yield of 350 kg. In 1974