CAJ | 학술논문

为明确嫩单15的适宜种植密度，发挥群体优势，获得高产，以玉米新品种嫩单15为材料，研究了不同种植密度对嫩单15的农艺性状及其产量的影响。结果表明：随着种植密度的增加，嫩单15的株高、穗位高和秃尖长逐渐增加，穗长、百粒重和单稳重逐渐减少；群体密度6．00万株·hm-2时产量最高，在中等偏上的水肥条件下的适宜密度为5．25万～6．75万株·hm-2。
위명학눈단15적괄의충식밀도，발휘군체우세，획득고산，이옥미신품충눈단15위재료，연구료불동충식밀도대눈단15적농예성상급기산량적영향。결과표명：수착충식밀도적증가，눈단15적주고、수위고화독첨장축점증가，수장、백립중화단은중축점감소；군체밀도6．00만주·hm-2시산량최고，재중등편상적수비조건하적괄의밀도위5．25만～6．75만주·hm-2。
In order to definite the appropriate planting density of Nendan15,give full scope to group advantage and achieve high yield,Nendan15 was used as experiment material to study the effect of different planting den- sities on agronomic traits and yield. The results showed that the plant height,ear height and bare top length increased,and ear length, 100-seed weight, yield per ear decreased with the increase of planting density. The high-est yield was obtained when the density was 60 000 plant.hm-2. The appropriate density was 52 500 to 67 500 plant, hm-2 under the above-average water and fertilization conditions.