internal nutrient efficiency 养分利用效率
specific nutrient efficiency 特异养分效率
Agronomic nutrient efficiency 肥料农学效率
nutrient use efficiency 养分利用效率 ; 提高养分利用效率
Nutrient uptake efficiency 养分吸收效率
The experiment was conducted to study the performance, nutrient efficiency, blood serum biochemical traits and the mineral element in tissue of cage-rearing young ducks (one day).
研究饲粮中添加不同水平硫酸锰对笼养蛋雏鸭生产性能、营养物质利用率、血清生化指标以及组织矿物元素沉积的影响。
P fertilization increased N, P and K accumulation in tree biomass and nutrient use efficiency in wood and biomass production.
施P肥还增加了树木N、P和K的养分积累量，提高了上述养分的利用效率。
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