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磴口县补隆淖公社友谊二队从1973年开始,玉米亩产连续7年超过千斤,最高的1975年,108亩玉米平均亩产1390斤。这个队的玉米为什么能够连年获得高产呢?除了深耕整地、施足底肥、选用良种、精细管理以外,最主要的是实行了适时早播,双株留苗,提高了播种质量,保证了全苗,做到了合理密植。在当地,玉米种早了地温低,土壤湿度大,容易粉种,出苗率低;种迟了秋季容易受
Tongkou County Pulai Hong commune friendship team from 1973 onwards, per mu yield more than seven consecutive years, the highest in 1975, 108 mu of corn average yield of 1390 pounds. Why is this team corn year after year to obtain high yield it? In addition to deep plowing the soil preparation, the application of seedling, the selection of elite, fine management, the most important is the implementation of a timely early sowing, Shuang Zhu Li Miao, improved sowing quality, ensuring the whole plant , Done a reasonable close planting. In the local corn early low ground temperature, soil moisture, easy to powder, low rate of emergence; autumn late fall susceptible