The level of applying fertilizer的用法和樣例：
例句
- The highest returns are received from the highest level of fertilization.
最高的施肥水平可獲最高的經(jīng)濟效益。 - Effects of fertilizer level on plant growth, development and yield of muskmelon in spring and autumn were studied under organic and conventional production systems.
摘要在有機和常規兩種生產(chǎn)系統中，研究了不同施肥水平對春秋兩季甜瓜生長(cháng)發(fā)育和產(chǎn)量的影響。
