论文部分内容阅读
我场系洪泽湖围垦区,东临徐洪河,西临濉河,南靠洪泽湖, 三面环水;海拔11．9-13．5m,土质粘重,有机质含量在2%左右, 速效磷含量很低。地理坐标北纬33°25′,东经118°27′,耕地面积近6666．7hm2,稻麦连作。近几年部分土地外包后,承包户种植棉花。由于棉花腾茬较迟,一般要到12月上旬,而我场小麦最适宜的播期在10月10-20日,为了解决小麦冬前生长期与生长量和棉花生长的矛盾,2003年秋播我场引进棉套麦技术,当年试验示范面积为20hm2,平均单产超过6000kg/hm2,初步获得成功。2004年秋播棉套麦面积近1333．3hm2,约占秋播三麦的三分之一,单产达6000kg/hm2以上。
My field of Hongze Lake reclamation area, east of Xu Hong River, west of Bahe, Hongze Lake south, surrounded by water; Elevation 11.9-13.5m, soil sticky, organic matter content of about 2%, available phosphorus Low content. Geographical coordinates 33 ° 25 ’north latitude, longitude 118 ° 27’, arable land area of nearly 6666.7hm2, rice and wheat continuous cropping. In recent years some land outsourcing, contractors planting cotton. Due to the late tangled cotton, generally until early December, and my field of wheat sowing date most suitable for October 10-20, in order to solve the winter wheat growth and growth and cotton growth contradictions, the 2003 autumn broadcast Our field introduced cotton wheat technology, when the pilot demonstration area of 20hm2, the average yield of more than 6000kg / hm2, the initial success. In autumn 2004 cotton paddy area reached nearly 1333.3hm2, accounting for about one-third of the autumn wheat crop, yielding more than 6000kg / hm2.