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为提高鲜食玉米种植效益,筛选了最适合“一年两茬”种植的品种,研究了其最适种植密度和播期。结果表明:迪甜10号、迪甜6号、迪糯278、京科糯2000、金菲这5个品种中,迪甜6号最符合“一年两茬”种植模式对品种的要求。优化组合为第一茬4月5日播种,密度为60000株/hm~2;第二茬6月23日播种,密度为46500株/hm~2。净收益为11250-12450元/hm~2。建议在适宜地区广泛推广。
In order to improve the efficiency of fresh corn planting, the most suitable varieties of “double cropping” were screened and their optimum planting density and sowing date were studied. The results showed that among the five varieties Di Tian 10, Di Tian 6, Di Nuo 278, Jing Ke Nuo 2000 and Jin Fei, Di Tian 6 best conformed to the requirements of “Breeding Year” . The optimal combination was the first crop sown on April 5 with a density of 60,000 plants / hm ~ 2. The second crop was sown on June 23 with a density of 46,500 plants / hm ~ 2. Net income 11250-12450 yuan / hm ~ 2. Recommended in the appropriate area to promote a wide range.