Rokolan is a basic fertilizer on an organic basis for root nutrition of agricultural crops. Its effect ensures a better start in the initial growth phase due to better development of the root system and a starter dose of nutrients with a high content of amino acids. The effect of Rokolan lies in a mix of eighteen types of amino acids, various peptides, excipients, and nutrients necessary for the intended application. It contains organic nitrogen from chicken feathers. The goal of Rokolan is to support plant growth, strengthen plant resistance to pests, diseases, and stress conditions. The amino acids in the fertilizer directly nourish the plants and simultaneously provide nutrition to microorganisms, thereby activating soil microflora and subsequent mineralization processes. Rokolan effectively supports the efficient use of nutrients present in the soil, thereby reducing the plants' demand for the amount of fertilizer used.