随着北京地区复种指数的不断提高和土、肥、水条件的日益改善,种植早熟、高产冬小麦品种已经成为争取全年平衡高产的重要一环。朝阳区双桥人民公社是稻麦两熟区,两万多亩稻茬麦平均亩产六百多斤,部分麦田具备了亩产八百至一千斤以上的栽培条件,对上下茬品种的早熟性和丰产性都有迫切要求。 With the continuous improvement of the multiple cropping index in Beijing and the continuous improvement of soil, fertilizer and water conditions, the cultivation of early-maturing and high-yielding winter wheat varieties has become an important part of striving for balanced and high-yielding throughout the year. Shuangqiao People’s Commune in Chaoyang District is a paddy and wheat two-cropping area. The average mu yield of more than 20,000 mu of rice cropper is 600 kilograms. Some of the wheat fields have the cultivation conditions of 800 to 1,000 kilos per mu, Both precocity and high yield have pressing needs.