1991—1993年我县引进示范推广中单120玉米新品种1.5万亩,获得平均亩产480公斤的好收成,受到了群众的欢迎。通过试验、示范、推广,我们发现该品种具有以下特点:一、早熟性好该品种生育期在我县仅80—89天,这一点在高肥水地块表现尤为突出,一般仅80天即可成熟。二、耐密植该品种株高2—2.3米,穗上节较细并有小弯曲,穗上叶片细、窄,长势清秀,透光性好,因此较耐密植。该品种的适宜种植密度以每亩4200—4500株为 From 1991 to 1993, the county introduced 15,000 mu of new 120 varieties of mid-single-crop demonstration and popularization, and got a good harvest of 480 kg per mu per mu, which was welcomed by the masses. Through testing, demonstration, promotion, we found that the varieties have the following characteristics: First, good precocity The variety of growth period in our county only 80-89 days, which is particularly prominent in the high-fertile land, usually only 80 days mature. Second, the close tolerance The variety of plant height 2-2.3 meters, spike upper section and a small bending, spike on the leaves thin, narrow, growing delicate, good light transmission, and therefore more densely populated. The suitable planting density of this variety is 4200-4500 plants per acre