白城、松原地区是吉林省粮食增产潜力最大的地区。但该地区十年九春旱,土壤瘠薄,给玉米生产带来了很大障碍。其玉米单产不高的主要原因:一是播种技术不过关,保苗严重不足(一般公顷收获仅能达到3500株左右);二是干旱严重,缺乏良好的深松蓄水、培肥地力措施; Baicheng and Songyuan areas are the areas with the largest grain yield potential in Jilin Province. However, due to drought in the spring of 1998 and the infertile soil in the region, this area has brought great obstacles to the production of corn. The main reasons for its low yield of corn: First, sowing technology, however, but the critical shortage of seedlings (general hectare harvest can only reach 3500 or so); Second, a serious drought, the lack of good subsoiling water, fertilizer fertility measures;