CAJ | 학술논문

[目的]进一步探究丘陵地区稀植大穗型杂交玉米高产栽培配套技术.[方法]设2因素3水平,共9组处理,3次重复,随机区组排列,研究种植密度(42 000~54 000株/hm~2)与施氮量(135~225 kg/hm~2)对丘陵区杂交玉米经济性状与产量的影响.[结果]在种植密度与施氮量的范围内,玉米经济性状表现较好的组合是A_1B_3(栽培密度42 000株/hm~2,施纯氮225 kg/hm~2),其穗长为21.5 cm,穗粒数为627.9粒/穗,千粒重为356.7 g;玉米产量最高的组合是A_2B_2(栽培密度48 000株/hm~2,施纯氮180 kg/hm~2),产量达9 221.2 kg/hm~2.[结论]综合评价,在种植密度42 000～48 000株/hm~2、施纯氮180~225 kg/hm~2的条件下,玉米经济性状较好、产量水平较高,生产中应将密度和施氮水平控制在该范围.
[목적]진일보탐구구릉지구희식대수형잡교옥미고산재배배투기술.[방법]설2인소3수평,공9조처리,3차중복,수궤구조배렬,연구충식밀도(42 000~54 000주/hm~2)여시담량(135~225 kg/hm~2)대구릉구잡교옥미경제성상여산량적영향.[결과]재충식밀도여시담량적범위내,옥미경제성상표현교호적조합시A_1B_3(재배밀도42 000주/hm~2,시순담225 kg/hm~2),기수장위21.5 cm,수립수위627.9립/수,천립중위356.7 g;옥미산량최고적조합시A_2B_2(재배밀도48 000주/hm~2,시순담180 kg/hm~2),산량체9 221.2 kg/hm~2.[결론]종합평개,재충식밀도42 000～48 000주/hm~2、시순담180~225 kg/hm~2적조건하,옥미경제성상교호、산량수평교고,생산중응장밀도화시담수평공제재해범위.
[Objective] The study aimed to improve the high-yielding cultivation techniques of corn. [Method] 2 factors, 3 levels, 9 groups, 3 repeats, and random permutation were set up, effects of planting density and nitrogen application rate on the economic characters and yield of corn in hilly area were studied. [Result] In the range of planting density (42 000-54 000 plants/hm~2 ) and nitrogen application rate (135-225 kg/hm~2), A_1B_3 had the better economic character, its spike length was 21.5 centimeters, 627.9 Grains per spike, 356.7 gram per 1 000 grains;A_1B_2 had the highest yield, the yield reached 9 221.2 kg/hm~2. [Conclusion] Based on comprehensive evaluation, when the planting density was 42 000-48 000 plants/hm~2, purity nitrogen was 180-225 kg/hm_2, the corns had the better economic characters and yield, the planting density and purity nitrogen should be controlled in this range.