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植物所需的16种必要营养元素,在植物生长发育过程中具有同等重要和不可代替的关系。尽管植物体内各种营养元素的含量差异很大,但它们各自担负的营养生理作用却是独特的,相互之间是不可代替的。不能认为植物体内含量多的氮磷钾
The 16 essential nutrients needed by plants have an equally important and irreplaceable relationship in plant growth and development. Although the content of various nutrients in plants vary widely, their respective nutritional and physiological roles are unique and mutually irreplaceable. Can not think of plants in the content of more NPK