摘要
对灌溉条件下春小麦不同品种在不同农艺栽培措施处理下的分蘖发生及成穗规律进行了试验研究。结果表明,不同品种春小麦在不同处理下,单株平均分蘖数在整个分蘖期间均呈单峰曲线变化,峰值出现在拔节期,之后开始转向两极分化。不同密度、施肥量处理下,分蘖发生及成穗率存在明显差异。确定适宜密度和氮、磷、钾的适宜用量,可促进小麦分蘖的形成,提高分蘖成穗率,有利于获得高产。
The experiement was conducted to study the rules of tillers and spike formation of different spring wheat varieties under different cultivation conditions. The results showed that the tiller number per plant changed as a single-peak curve for any variety under different treatments during tillering stage, and its peak emerged at jointing stage, and then differentiated to both side. There were significant differences in spikes and tillers among different fertilizations and densities. Under the optimum density and amount of N, P, K applied, the formation of tillers, spike-formed rate and yield were improved.
出处
《麦类作物学报》
CAS
CSCD
2003年第3期64-69,共6页
Journal of Triticeae Crops
基金
内蒙古自治区科技厅"九五"重大科技攻关项目(960101)
