“双株紧靠”能够较好地解决密植与通风透光的矛盾,极大地提高了玉米的光能利用率,充分发挥密植的增产作用,一般增产20％以上。 玉米双株紧靠栽培新技术要点:①合理密植保证株数,即行距50—70厘米,穴距40—70厘米,667平方米株数3800—4700株,较常规栽培增加三四成。②“二比空”双 “Shuang Zhuang close” can better solve the contradiction between close planting and ventilation and light, which greatly improve the corn utilization rate of light energy, give full play to the role of close planting yield increase, the general increase of more than 20%. Corn double plants close to the cultivation of new technologies points: ① reasonable number of close planting to ensure that row spacing of 50-70 cm, hole spacing 40-70 cm, 667 square meters number of 3800-4700 plants, compared with conventional cultivation increased 34%. ② “two more than empty” double