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进行玉米京科301不同播种密度对生育期及产量影响试验,结果表明:生育期由早到晚的密度分别为4.5万、6.0万、7.5万株/hm2,单位面积收获粒数由高到低的密度为7.5万、6.0万、4.5万株/hm2,千粒重由高到低的密度分别为4.5万、6.0万、7.5万株/hm2,穗位由高到低分别为7.5万、6.0万、4.5万株/hm2。玉米种植密度在6.0万株/hm2时,产量最高。因此,明确京科301播种的最佳密度,对提升该区域玉米高产高效生产能力提供有力的技术支撑。
The effects of different sowing densities of maize Jingke 301 on the growth period and yield were tested. The results showed that the density of maize Jingke 301 was 45,000, 60,000 and 75,000 plants / hm2 respectively from morning to evening, and the grain yield per unit area was from high to low The densities were 75,000, 60,000 and 45,000 plants / hm2 respectively. The densities of 1000-grain weight from high to low were 45,000, 60,000 and 75,000 plants / hm2, respectively. The ear positions were 75,000 and 60,000 respectively from high to low, 4.5 million / hm2. Corn planting density of 60,000 plants / hm2, the highest yield. Therefore, it is clear that the optimal planting density of KeJing 301 will provide strong technical support for enhancing the high yield and high productivity of maize in this area.