Research the influence of mineral substratum on process of plants humification

The interrelation between the nature of soil minerals surface and properties of humic acids, emitted from humic substances, created in the process of humification of vegetable substances of a various type (clover, wheat) on surface of quartz sand and bentonite, and also noncarbonated loam under certain thermomoist conditions is established. According to IR-spectroscopy and to element structure it is revealed that the studied samples can be carried to humic acids of various extent of ripening.