Phosphate (P2O5)

Phosphate promotes root development and thus the growth of the crop and is necessary for outgrowth. Especially in spring, when the roots have to develop, a good phosphate supply is of great importance, as a shortage results in a slow start to growth; in turn, a shortage translates into reduced yields. For each type of soil, a target range has been established, within which the P-Al figure should be situated for optimal crop growth.