旱粮间作套种是发展我省旱粮生产的一项重大措施。我省1990年旱粮播种面积1572万亩,平均亩产只有115公斤。而间作套种的,一般亩产在700公斤以上,高的超过1000公斤,比不搞间作套种的一般亩产高出500公斤以上。目前全省推广间作套种的面积达153万亩。如果在今后的三四年内推广到5 Intercropping dryland intercropping is an important measure to develop dryland food production in our province. In 1990, the sown area of ​​drought-relief crops in our province was 15.72 million mu, with an average yield of 115 kg per mu. Intercropping intercropping generally yields more than 700 kg of mu and over 1000 kg of high, which is 500 kg more than the average yield per acre intercropping. At present, the area of ​​intercropping intercropping in the whole province reaches 153 million mu. If in the next three or four years to promote 5