小麦的生物量养分利用效率和产量养分利用效率都存在显著的种间差异，而且后者的差异更大。
Nutrient use efficiency for biomass and that for grain yield were all different significantly among wheat genotypes, but the differences of the latter were more significantly than those of the former.
水稻与秧田萌生稗草的生物量比率、茎蘖比率和产量比率增加均不显著。
The ratios of aboveground biomass, tiller number and yield did not increase significantly.
随小麦的进化，生物量养分利用效率和产量养分利用效率均显著增加。
With the increase of wheat ploidies, nutrient use efficiency for biomass and that for grain yield all increased significantly.
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