Malyuga Y. Ecological Substantiation to Efficiency of Slow-Acting Nitrogen-Containing Fertilizers

A scientific problem of creation and usage of slow-soluble fertilizers in forestry and agriculture and also the problem of processing of solid domestic waste into ecologically friendly organic and mineral fertilizers is solved in this dissertation. The objective is to make new ecologically friendly nitrogen-containing fertilizers of durable action and universal ameliorator on the base of industrial mineral fertilizers by means of solid domestic waste and precipitation of waste water processing; methods - field, laboratory, vegetative; theoretical sig-nificance of the dissertation is in establishing the peculiarities of effect of slow-soluble nitrogen-containing fertilizers on forest species and agricultural plants, main soil properties, productivity and quality of the received production; the novelty is in evolving the possibility of ecologically friendly effective usage of new forms of capsule slow-soluble nitrogen-containing mineral and organic and mineral fertilizers which contain bioglued coveringin arable farming and forestry; the results of implementation show that vegetable produc-tivity goes up 20 - 400%, nitrate content in products reduces by 58%, winter wheat productivity goes up 8,7 - 19,7% (protein content of cereals goes up 1,46 - 1,8%, stock cast of long-fibred flax goes up 180 - 217%, filament cast - 76 - 135%), nitrogen nutrition of forest seedlings optimizes on application of slow-soluble fertilizers. The usage of slow-soluble fertilizers raises antierosive effectiveness in forests to 1, 8% as compared to standard fertilizers. The usage of organic and mineral fertilizers in doses of 30-40 tones per hectare results in density reduction, improvement of structural condition, increase of nitrogen content in dark grey regraded soil. New kinds of slow-soluble nitrogen-containing fertilizers and organic and mineral fertilizers are recommended for rational ecologically friendly usage; branch - forestry and agriculture.