【摘要】 通过播种期、密度和拔节肥用量的不同处理,对小麦新品种云麦47的基本农艺性状和产量的调控效应进行研究。结果表明,播种期对全生育期、株高、单株有效分蘖和穗长等农艺性状的影响较大,拔节肥用量的影响较小。播种期对产量性状的影响较大,密度对产量的影响最大,拔节肥用量则主要影响穗粒数。就处理而言,10月21日播种、300×104/hm2密度和180kg/hm2尿素用量处理的产量最高,为8213kg/hm2,显著高于其余处理,差异达5%显著水平;10月21日播种、150×104/hm2密度和255kg/hm2尿素用量处理的产量最低,为6838kg/hm2。更多还原

【Abstract】 Wheat cultivar Yunmai 47 was treated with different sowing date, density and fertilizer application to investigate the effect of the treatments on agricultural performance.The result indicated that sowing date played a determinant role at growth duration,and plant height, available tillers per plant and spike length, and fertilizer quantity had slight effect on them. Sowing date and density played a principal role in yield characteristics and yield, respectively. While fertilizer application played an important role in kernel per spike. As to treatments,the sowing on 21th of October, 300×10~4/ hm~2 density and 180 kg/ hm~2 fertilizer performed the highest yield with 8213 kg/ hm~2,which was significantly higher than that of other treatments at 5 % probability level, and the treatment of the sowing on 21th of October, 150×10~4/ hm~2 density and 255 kg/ hm~2 fertilizer performed the lowest with 6838 kg/hm~2.更多还原