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紧凑型玉米的生育规律及高产配套技术孙政才，赵久然，尉得铭，杨洪友（北京市农林科学院１０００８１）于１９９１～１９９４年组织京郊９个区县联合开展了有关研究。结果表明：１．生长发育规律紧凑型玉米适宜亩密度一般比平展型增加１５００株；最大叶面积系数可超过５...
The Law of Fertility and High-yielding Matching Techniques of Compact Corn SUN Zheng-cai, ZHAO Jiu-ran, WEI De-ming, YANG Hong-you (Beijing Academy of Agriculture and Forestry Sciences, Beijing 100081) This research was conducted in nine districts and counties in the suburbs of Beijing from 1991 to 1994. The result shows: 1. The law of growth and development of compact corn is suitable for the density of 1500 acres generally increased than the flat type; maximum leaf area coefficient can be more than 5 ...