Взаимодействие известковых удобрений с органическим веществом торфяных почв | Interaction of caicareous fertilizers with organic matter of peat soils
2012
Bambalov, N.N., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Soil Science and Agrochemistry
In course of the research there was studied the mechanism of interaction of caicareous fertilizers with organic matter of peat soils on a base of the thermal analysis, sensitive to changes of organic and mineral components, and electronic-paramagnetic resonance. The research was realized in the conditions of the Republic of Belarus. As a result of realized research it was revealed that the increase of the decomposition degree of peat take place if calcareous fertilizers have been used on the weakly decomposed peat soils, but decomposition degree was not changing by introduction of calcareous fertilizers into soils developing on the middle or highly decomposed peat. The content of total nitrogen, humic and fulvic acids was increasing, but C:N ratio, the quantity of the light- and heavy hydrolysable substances were decreasing in soils developing on weakly decomposed peat. The elemental and group composition of organic matter were not changing if calcareous fertilizers have been used on the soils developing on the middle and highly decomposed peat. At entering of calcareous fertilizers into peat soils calcium and magnesium cations interact with the car-boxyl groups located at aromatic nucleus belonging to different molecules of humic acids. The new organic-mineral components with the increased electronic paramagnetism were forming into peat soils as a result of such interaction.
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