INFLUENCE OF SOLID LIQUID STATES RATIOS ON THE COMPOSITION AND PROPERTIES OF HUMATE-CONTAINING ORGANO-MINERAL FERTILIZERS

Human economic activity leads to removal of nutrients from the soil along with crop. Nutrients losses also occur because natural processes (erosion, leaching, etc.). It is necessary replenish missing use humate-containing organomineral fertilizers preserve fertility and increase productivity. The purpose this work study iron (III) phosphates interaction potassium humate obtain fertilizers. Methodology. Chemical analysis, infrared spectroscopy, X-ray phase analysis methods have been used. Results discussion. obtaining by in systems “iron dihydrogen phosphate - humate”, hydrogen humate” orthophosphate studied. has determined that an S:L ratio 1:3 1:6 content digestible forms Р2О5 up 44.70%, nitrogen 1.85% output humic substances 79.23%. An IRS data indicates multicomponentness complexity composition samples. Conclusion. shown absorption bands compounds various functional groups substitutions are superimposed, while shape distorted, their maxima shifted high- or low-frequency area. found that, regardless ionnature, a decrease absolute total, water-soluble assimilable P2O5. Concurrently, part almost completely converted into assimilated form. defined adding humate, makes all phosphorus, which indigestible form phosphates, pass mobile revealed addition degrees substitution it possible neutralize residual acidity pulp, neutralization process proceeds without P2O5 retrogradation. resulting products good physical, mechanical fertilizer properties.