Alginite, an organic material recently discovered in the maars of Northern Novohrad Region of the Southern Slovakia, demonstrates a high humus content reaching 15.5% as well as considerable contents of macronutrients, such as P, K, Ca, Mg. Even though it contains numerous trace elements, the content of heavy metals lies below toxicity limit (Vass, Koncěný, Elečko, 1998). The alginite excels in high water retention capacity about 110%. It is conditioned by a large specific surface up to 654 m2 g-1, high amount organic matter such as kerogene II and the presence of smectite. Due to the aforementioned properties alginite lends itself as an effective natural sorbent agent, fertilizer and growth promoter without any negative side effects on the environment.