密度和肥料对玉米新品种科大16群体质量和产量的影响

以高产玉米新品种科大16为试验材料,采用双因素裂区设计,研究了不同密度和肥料处理对其群体质量指标和产量的影响。结果表明：密度的增产效应大于肥料的增产效应;秃尖长受肥料和密度的影响明显;株高、穗位高受密度的影响变化复杂;棒三叶叶长、叶宽、叶面积变化相对稳定;棒三叶夹角则随密度的增加呈现先增后降的趋势。

Effect of Different Densities and Fertilization on Population Quality and Yield of a New Maize Variety 'KD 16'

An experiment was carried out by a split block design with two factors.The high-yield new maize KD 16 was studied to investigate the effect of fertilization and density on population quality and yield.It is shown that the effect of density on the yield were much singnificant than that of fertilization,Barren tip length was susceptible to density increase and fertilization increase,plant height and ear height have complex correlation with density the changing of leaf length,leaf width,and the area of maize three ear leaves were relatively stable,the included angle of maize three ear leaves showed a curve of first increase and later drop.