Macronutrient

A macronutrient is a chemical element which, at a Homme of 70 kilograms, represents more than 5 grams.

At the plants, they are nutritive elements necessary in great quantities to their growth and their development. There is thus no relationship with their size. They are agents of construction which one especially finds in the solutions in the ground in the form of Ion S in combined forms (NH4+, NO2-). The macronutrients , but exclusively, are especially not implied in the structure of the molecules, which explains the need for important contributions partly. Their concentration is lower than 0,1% in the dry matter.

List macronutrients

See too

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