Each crop requires nutrients. The essential nutrients that a crop needs most are nitrogen (N), sulphur (S), phosphate (P), potassium (K), calcium (Ca) and magnesium (Mg). The other essential nutrients are the micro nutrients iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), boron (B), molybdenum (Mo) and chloride (Cl). A crop require relatively low concentrations of these micro nutrients, however a deficit can cause loss of yield and/or quality in every crop.
A number of other nutrients (sodium, silicon, cobalt, selenium) can also be important to - amongst other factors - the yield, quality, resilience, sturdiness, fertility, palatability and (animal) health.
Elements can also compete with each other. For example, if the Mg status is “good” but the K status is “high”, then an Mg deficiency can still occur. Therefore, the recommended dosages take these interactions into consideration.
In the first year after you have created your field the condition of the soil will change substantially. We advise you to submit a new sample for analysis, to obtain correct fertilisation recommendations for after the first year.
Analyzing the grass clippings is a good tool to assess whether the N and P content in the grass is sufficient and thereby if the fertilization is in order. You can request a CropCheck to check this.