Usually, this step is carried out after digging the soil. However, since the main fertilizers should be applied before digging the soil for lawn laying, fertilization is first applied, and then the soil is cultivated.
As it is well-known, fertilizers can be organic or mineral, and it is optimal to use them in a complex. On poor soils, organic fertilizers are desirable, especially on sandy soils. On heavy clay soils, organic matter improves the structure. In other cases, mineral fertilizers are sufficient.
It should be kept in mind that a lawn is created for at least several years, and the introduction of such nutrients as potassium and phosphorus with top-dressing is ineffective (they move poorly in the soil). Therefore, they should be applied during the lawn laying and provide a reserve of nutrients for several years.
For phosphorus fertilizers, it is permissible to apply a triple rate or even more, and for potassium fertilizers, up to 2-3 rates.
One should be cautious with nitrogen fertilizers - if digging is done in the fall, it is not desirable to apply nitrogen, and when digging in the spring, the recommended amount indicated on the package should be applied. Later, nitrogen is applied in the form of top-dressing in the spring, which is practically the only nutrient element that moves well in the soil.