Natural fertilisers – application principles

Natural fertilisers are: manure, slurry and urine.

Their beneficial effects on soil and plants are widely known and confirmed by multiannual scientific research. They are rich in a whole range of macro- and micronutrients essential for plant nutrition, and thus their application can significantly reduce the use of mineral fertilisers. Moreover, manure is a rich source of organic matter. The application of natural fertilisers triggers microbial activity in soil and has an all-round effect on its fertility.

However, the rational management of natural fertilisers is not easy in view of the risk of nitrogen losses. The application of fertilisers, i.e. time when large losses of nitrogen in the form of ammonia can occur, is the most critical moment. Therefore, it must be carried out very skilfully and fertilisers must be quickly covered with soil to minimise losses of this valuable component. In case of manure, the difficulty stems from the fact that it is largely composed of organic nitrogen compounds which must be converted into mineral forms to be absorbed by plants. The mineralisation process of organic compounds is slow; therefore plants with a long growing season can best use nitrogen coming from manure, which should be borne in mind when drawing up a fertilisation plan.

The application and storage of natural fertilisers is regulated by Act of 10 July 2007 on fertilisers and fertilisation.   link to the Act