the results of genetic cluster analysis of n utilization efficiency showed that 137 wheat parents could be divided into three types.
小麦亲本氮素利用效率的遗传聚类分析,将137个小麦亲本分为三类。
n utilization efficiency on clay soil was higher than sand soil under different amount of nitrogen.
各氮肥水平下,氮肥当季利用率粘土均比砂土高。
this experiment is suggested that there are difference in the yield, plant total amount of n absorption among four maize hybrids, but the n utilization efficiency is just the opposite.
结果表明,四个玉米品种间产量、总吸氮量存在一定程度的差异,氮利用效率差异均不显着。
under different application rates of w, n, k and m, the n utilization efficiency was significantly increased with optimum timing of watering and fertilization.
水肥施用分配相对于不同水、化肥(n、k )、有机肥量的选择,可以大大地提高肥料n利用率;