Granular Fertilizers

A correct nutrition must foresee the correct contribution of the most needed nutrients (macro-elements: nitrogen – phosphorous – potassium) in the right ratios in relation to different seasonal periods.
A highly problematical aspect is the management of nitrogen.
In fact, because this element is mobile and therefore subject to being washed away, it is necessary that its release occurs in a regular and constant manner for the whole period that elapses until the next application.