With the lawn, large amounts of plant nutrients are removed from the soil. By letting the clip remain or, even better, composting it and then returning compost to the lawn reduces the losses.
There are a variety of substances that the plant needs for its development, see the drawing! Surplus on one substance does not reduce the need for another; the balance between the various nutrients in the soil is important.
Some are of particular importance:
Nitrogen (N), the grass plant has a great need for growth and development. Sufficient nitrogen in the soil makes the grass greener and the plant shoots more closely with shoots. Large nitrogen donors make the plant lush, but at the same time increase the need for mowing.
Vulnerability to cold, drought and fungal diseases decreases with excessive nitrogen supply.
Phosphorus (P) plays an important role in the photosynthetic process when the plant, with sunlight, carbon dioxide transforms from air and water into sugars from which it is built and alive.
Large amounts of phosphorus are found in the seed. Phosphorus affects the grass plant's start after groningen and root formation is promoted.
Potassium (K) is found as a free salt in the plant without being bound to the other nutrients. Nevertheless, potassium is of great importance and contributes to growth and development. Potassium is necessary for the build up of sugars in the plant.
Adequate potassium increases the plant's resistance to drought and cold, it is healthier and more resistant to wearing.
Lawn grass has a high demand for potassium, only the nitrogen requirement is larger.
Other plant nutrients such as magnesium, calcium, sulfur, iron, copper, manganese, living with many must be in the soil to prevent the plant from suffering. All links in the food chain are important, even the weakest.
A good lawn soil should contain air and water in approximately equal parts but a significantly greater amount of inorganic material (mineral) than organic (molluscs).
In an interplay between the ground and the air, with sunlight, carbon dioxide, water and mineral, the plant lives.