Amount of nitrogen fertilizer的用法和樣例：
例句
- The growth rate and moving biomass of Kentucky bluegrass turf were affected by the quantity of nitrogen fertilizer.
氮肥用量是提高草地早熟禾草坪生長速率和修剪量的主要因素。 - In particular, an increase in the amount of nitrogen applied has the effect of increasing the MPP of potash.
特別是氮肥用量的增加具有提高鉀肥邊際產量的作用。
