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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。
The effects of different treatment of sowing date, density and jointing fertilizer on the basic agronomic traits and yield of a new wheat cultivar Yunmaili 47 were studied. The results showed that sowing date had a great effect on agronomic characters such as whole growth period, plant height, effective tiller and spike length per plant, and the effect of jointing fertilizer was small. The sowing period had a great influence on the yield traits, the density had the greatest effect on the yield, and the jointing fertilizer amount mainly affected the grain number per spike. In terms of treatment, the highest yield was 8213 kg / hm2, which was sowed on October 21, with a density of 300 × 104 / hm2 and a urea dosage of 180 kg / hm2, which was significantly higher than the other treatments with a significant difference of 5%. On October 21 Sowing, 150 × 104 / hm2 density and 255kg / hm2 urea treatment output of the lowest, 6838kg / hm2.