Explanation sports fields

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 requires 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 construction, the condition of the soil changes significantly. To fertilize correctly the year after installation, a new soil sample is recommended

Analyzing the grass clippings is a good tool to assess whether the N and P contents in the grass are sufficient and therefore whether the fertilization is in order. You can request a Crop Check to check this.

When constructing a new sports field,  we  recommend to apply the doses of N, P and K  through the top 10 cm.


In addition to the organic matter content, the nitrogen advice also takes into account the nitrogen supplying capacity and the pH. The nitrogen advice is based on normal use intensity (150-350 hours) and an average mowing frequency (40-50 times per year). If the intensity of use or the mowing frequency is more extensive or intensive, adjust the advice according to the table below. If the clippings are removed, increase the N recommendation by 20 kg N/ha.

When sowing the sports field after September, it is best to give an extra dose of 50 kg N/ha in November.


Carry out the phosphate fertilization in the spring. The plant available phosphate is lowest in spring due to the low soil temperatures.


For an optimal potassium supply throughout the growing season, it is advisable to administer half of the recommended dose in March and the other half in June. With a low CEC, an even further division of the gift may be desirable.

Too much potassium competes with calcium and magnesium, among other things. Too little potassium will hinder growth and resistance.


The best time to fertilize is spring.

Organic Matter

If the sod layer has a lutum percentage greater than 4% or an organic matter content greater than 6.5%, impoverishment with 30 - 50 m3 of sand per field/year is recommended. Have the suitability of the depletion sand checked by means of a granular analysis.


If you receive a liming advice, do not spread more than 300 kg of lime (neutralizing value) at once per hectare per year.

The best time for liming existing sports fields is during the resting period of the field.