Fertilizers with Humic Substances - Some Characteristics

Using as fertilizers the substances containing humic compounds proved to be effective in a wide range of cultures and applied to different types of soil. The types and number of fertilizers that are composed of organic substances of plant origin are very numerous due to the variation of sources from which they can be obtained. The range of fertilizers containing humic substances as source of plant origin has extensively developed both due to the sources from which they can be obtained and to the mode of extraction (separation) from them. Such extracts can be used as such or combined with other organic or mineral substances, and this possibility leads to obtaining one of the largest classes of fertilizers, known as organo-mineral fertilizers. This paper presents a technology for obtaining complex fertilizers with humic substances, as well as the physicochemical and agrochemical characteristics of two fertilizers experimentally obtained.