棉麦套种效益超千近几年，朝阳市龙城区西大营子镇棉麦套种的面积逐年扩大。这种栽培形式产量高、效益好，深受农民欢迎。如１９９１年全镇棉麦套种１５５亩，平均亩效益达１０９４元。具体做法是：１．精细播种。小麦品种选用高产抗逆性强的铁春１号。播种前精选种子，再... Over the past few years, the area of ​​cotton and wheat intercropping of Xidayingzi Town in Longcheng District, Chaoyang City has been expanding year by year. This cultivation form of high yield, good efficiency, welcomed by farmers. For example, in 1991, 155 mu of cotton and wheat intercropping in the whole town had an average benefit of 1,094 yuan per mu. The specific approach is: 1. Fine sowing. Selection of high-yield wheat varieties resistant to iron on the 1st iron. Seeds before sowing, then ...