engleski

Investigations of the fertilizing value of the zeolite tuff based special natural substrate, Agrarvital - SPS

Volcanic rocks have a high content of various elements. Investigations, Snoek, H. (1985), showed that finely ground volcanic rocks have a good effect on the cation/anion content in plant absorption as well as on growth restraints. Two localities in Croatia have sediment deposits of volcanic tuff with a high zeolite content (clinoptilolite and analcine). Mineralogical, physical and chemical investigations of these minerals revealed their very useful properties for fertilizing trials. Effect of Agrarvital-SPS with the prevailing content of these zeolites upon the fertilizational and neutralizational value of liming (acid soil) was estimated.

natural zeolites; fertilizing; Agraravital-SPS

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