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我省是北方主要产棉区,历年种植面积在900万亩左右。过去一直采用常规种植方法,工序繁琐、劳动强度大、成本高,劳动生产率低。加之4月份播种期常因遇上寒流低温或春旱多风的袭击,出苗缓慢。且易烂籽、烂芽、发生苗病,常造成大面积缺苗断垄或毁种。同时由于早播,前期棉蚜发生早,危害重,7—8月正遇上汛期,蕾铃脱落、烂桃、草荒现象严重。我省无霜期较短,温度较低,棉花以一年一熟为
The province is the main cotton-producing area in the north, with a planting area of 900 million mu throughout the years. In the past, conventional planting methods have been used, the procedure is cumbersome, the labor intensity is high, the cost is high, and the labor productivity is low. In addition, the sowing time in April is often due to the cold cold or spring drought windy attack, emergence is slow. And easy to rotten seeds, rotten buds, the occurrence of disease, often resulting in a large area lack of seedlings broken ridge or destroyed species. At the same time due to early sowing, early cotton aphid occurred early, endangering heavy, July-August is a flood season, fall off, rotten peach, grass shortage shortage phenomenon. Frost-free period in our province is shorter, the temperature is lower, the cotton one year cooked