Grassland nutrition Correct crop nutrition is fundamental to growing any crop successfully and grass is no exception. To grow a good crop of grass in any situation; whether it be for low or high intensity grazing, hay, or silage the nutrition must be tailored to what is already in the soil. P, K, Mg, and pH Soil testing Soil analysis is required to ascertain the fertility and acidity of your grassland fields. At Bartholomews we recommend that each field should be soil tested once every three years to get the best crop. The results from the soil test will be displayed as an index, aiding decision-making regarding fertiliser requirements. Soil analysis will also reveal the pH of your soil, a measure of the acidity which affects soil fertility. Soils which are too acidic can decrease the availability of nutrients such as phosphate.
Nutrient / pH
Optimum index / pH
Phosphate (P)
2
Potassium (K)
2-
Magnesium (Mg)
2
pH
6
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