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作 者:刘丽[1] 陈永塘 于亚雄[1] 胡银星[1] 程耿[1] 刘树林 马泽启 飞会琼 杨金华[1]
机构地区:[1]云南省农业科学院粮食作物研究所,云南昆明650205 [2]玉溪市红塔区农业技术推广站,云南玉溪653100
出 处:《西南农业学报》2005年第1期20-24,共5页Southwest China Journal of Agricultural Sciences
基 金:云南省"十五"科技攻关(2001NG18)项目资助
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。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.
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