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Title: INVESTIGATION OF CONSEQUENCES OF ORGANIC FARMING BASED ON THE STUDY OF SOILS OF ANCIENT AGRICULTURE TERRACES
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INVESTIGATION OF CONSEQUENCES OF ORGANIC FARMING BASED ON THE STUDY OF SOILS OF ANCIENT AGRICULTURE TERRACES
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1314-2704
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English
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20
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3.1
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It was shown that organic agriculture in the Middle Ages resulted in significant changes of chemical and microbiological properties of soil of ancient agricultural fields and these changes have preserved up to now. Estimation of the changes in soil properties in result of centuries old intensive organic agriculture was made. As objects with intensive form of agriculture soils of agricultural terraces in submountain zone of North Caucasus (Russia) were chosen. Agricultural terraces are unique example of centuries old organic agriculture. It was shown that long time soil cultivation with organic fertilisers does not cause a decrease in soil fertility, but it also leads to a significant improvement in the balance of basic elements of plant nutrition. For the first time, it was shown that application of organic fertilisers more than 3000 years ago led to the accumulation of the nitrate form of nitrogen in ploughed soils. In the soils of ancient terraces increase of organic carbon content and its stabilization was observed. Increasing of organic carbon content resulted in an increase in active microbial biomass in buried soils, and hence general biological activity of soils. It was shown that in ancient ploughed soils that were manuring long periods of time mineral phosphates are dominated. Ploughing and manuring are stimulating microbiological activity and decomposition of organic-P compounds as a result more available forms of phosphates for plants uptake is occurred. In ancient ploughed soils an increase in enzyme activity, first of all, in phosphatase activities was shown. Variation of the level of enzyme activity in buried terraced soils of different age may show the change in intensity of application of organic fertilisers in different periods of time.
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conference
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20th International Multidisciplinary Scientific GeoConference SGEM 2020
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20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
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455-462
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18 - 24 August, 2020
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website
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cdrom
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7154
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organic farming; Middle Ages; fertility; nitrogen and carbon cycles; soil microbiology
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