Welcome to “NPK Removals Calculator”, the free service that allows to calculate crops removal in N, P2O5 and K2O based on yield and hectares.
The difficult economic conditions lead a great number of farmers to hold down the cost of production by reducing the number of fertilizations, also with reference to the essantial ones with macronutrients. Often farmers are not aware of the quantities of NPK removed by agricultural crops, and do not realize that the fact of reducing fertilization compromises production both from a quantitative and a qualitative point of view.
Among the priorities indicated in CAP 2014/2020 guidelines, it is noted that sustainable fertilization is a key element to safeguard and strengthen ecosystems based on agricultural and forest activities.
In order to “fertilize responsibly and in a sustainable way” it is essential to guarantee at least the steady restoration of removals: as a consequence we need a new awareness of plant macronutrients real requirements based on their removals.
Thanks to the “NPK Removals Calculator” service, every Fertilgest user can calculate, indipendently and free of charge, the real NPK removals based on yield and hectares of each agricultural crop.
N.B: "NPK Removals Calculator" only calculates crop removals in N, P2O5 and K2O. It does not create an actual fertilization plan, since it does not take into account the initial soil resources (for which the analysis of the soil itself is needed), the factors that influence the elements availability (in a positive or negative way), the potential different supply sources (green manures, residues cut, various supplies of Soil organic matter (SOM) , etc), the dispersions (such as placer mining) and the immobilization of nutritional elements. Therefore the N, P2O5 and K2O quantities provided by “NPK Removals Calculator” are the ones strictly necessary to restore in the soil the quantities removed by the sole production.
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