HUMIC FERTILIZER AND AMELIORANTS BASED ON BROWN COALS OF UZBEKISTAN

The article describes the main results of the oxidation of the Angren brown coal with nitric acid and the receiving nitrogen-phosphorus-humic, phosphorus-humic, liquid and solid nitrogen-humic fertilizers and results of their agrochemical tests. The results of obtaining humic ameliorants that absorb moisture and improve the structure of soils based on oxidized brown coal with nitric acid of the Angren field are presented. The possibility of receiving a humic ameliorant – a lime humate, improving the structure of soils by addition of burned lime solution in the oxidized brown coal is shown. The receiving the moisture bulking up humic ameliorant by polymerization of acrylic monomer in the water environment in the presence of the linking agent mixing the polymerization mixture with oxidized coal is presented.