夏玉米覆盖免耕精播机械化配套栽培技术北京市农工商联合总公司李宝升随着首都城市建设和郊区自身建设的发展，京郊农场粮田面积锐减，今后要实现农业持续稳产、高产，必须提高粮田复种指数，扩大小麦、玉米两茬面积，不断改进栽培技术，走精确农业的路子。北京地区位于华... Summer maize covered no-tillage precision sowing mechanized supporting cultivation technology Beijing Agriculture and Industry Corporation Li Baisheng with the capital city construction and suburban self-construction of the development, the suburbs of Beijing suburbs farmland area dropped sharply, in the future to achieve sustained and steady agriculture, high yield, must be improved Cropland Multiple Crop Indices, expanding wheat, corn stubble area, continuous improvement of cultivation techniques, take the road of precision agriculture. Beijing is located in China ...