Apart from liming the substrate, an equally important activity in preparing the soil for planting is providing the right amount of nutrients. The easiest way to deliver them is in the form of fertilizers.Normally, before planting trees, potassium-phosphorus fertilization is performed.
These are two elements that are extremely important for plants. They play a key role in growth and development. One of the properties of these elements is that they move very slowly into the soil profile.For this reason, it is important to apply fertilization before planting trees.
It is assumed that the supplied fertilizers should be sufficient for the first few years of plant growth.On soils with an average content of elements, the dose of potassium and phosphorus should be about 200 kg of pure nutrient per hectare. It will be approx. 0.2 kg of pure phosphorus and potassium per 10 m².
One of the most popular fertilizers containing both phosphorus and potassium in equal amounts (24%).It also contains nitrogen and some sulfur. We use it at a dose of about 1 kg per 10 m²It is important to mix the fertilizers with the soil well. Phosphorus, in particular, is a slow-moving element in soil, which means that it practically does not move.
Usually it is sufficient if the fertilizers are dug to the depth of the spade after spreading onto the soil.In poor soils, the dose can be increased by 1/3, using up to 300 kg of potassium and phosphorus per hectare.