烤烟不同耐肥品种的肥料利用率与烟叶品质

Studies on efficiency of fertilizer utilization and leaf quality in flue-cured tobacco varieties with different fertilizer response

摘要: 通过测定不同耐肥品种的肥料利用率与烟叶化学成分和香气吸味,烤烟品种的耐肥本质是肥料利用率的不同,N、P、K肥利用率均以耐肥性弱的品种高于耐肥性强的品种。随着施肥量的增加,耐肥性强的品种烟叶总糖含量下降的幅度和烟碱、总N、蛋白质含量上升的幅度比耐肥性弱的品种大。烟叶香气吸味较好时的施肥量以耐肥性强的品种高于耐肥性弱的品种。

Abstract: The experimental results showed that the varieties with weak fertilizer response had higher utilization efficiency for N, P and K element than the varieties with strong fertilizer response.With the increasing of fertilizer applied, the range of chemical composition in the levies of varieties with strong fertilizer response was bigger than the varieties with weak fertilizer response.The fertilizer rate which the good leaf quality could be get for the varieties with strong fertilizer response was higher than that for the varieties with weak fertilizer response.