1)three major fertilizer,三要素肥料2)three essential factors of fertilizer,肥料三要素3)fertilizer element,肥料要素4)major fertilizer elements,主要肥料元素;肥料三要素5)four factors of fertilize,肥料四要素6)four elements fertilizer,四要素肥料
用法和例句
The relationship of three essential factors of fertilizer and physiology of Larix kaempferi seedlings;
