Abstract
The process of migration of organic carbon from the biochar into the substrate and the aqueous phase was simulated. The process of organic carbon migration in passive and washing mode was evaluated. Part of the organic carbon was washed with water and passed into the aqueous phase, the other part remained in the mass of biochar. Biochar can be a source of available organic carbon, providing nutrition to rhizosphere microorganisms that improve the mineral nutrition of plants, both in the short and long term.
Highlights
The unreturnable removal of organic carbon from the soil with agricultural products makes the problem of soil depletion worse every year
The exposure time insignificantly changed the quantity of organic carbon extracted by water
The main part of the carbon of the biochar from corn straw belongs to the total organic carbon, the proportion of inorganic carbon in the samples is insignificant
Summary
The unreturnable removal of organic carbon from the soil with agricultural products makes the problem of soil depletion worse every year. The search and development of measures for environmentally safe farming is a key issue of modern agriculture. Biochar produced from agricultural waste is a clean and safe source of carbon. There is a number of positive results from the introduction of biochar into the practice of agriculture in different countries [1,2,3,4]. The production of fertilizers from biochar contributes to solving the problem of storage and processing of waste from agriculture, animal husbandry, food industry and others [5]. Made on the basis of biomass, is used for sequestering carbon, sorbent for heavy metals, etc. Made on the basis of biomass, is used for sequestering carbon, sorbent for heavy metals, etc. [6, 7]
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