2015,    N 6 (22)    

AGRICULTURE

Gogmachadze G., Matyuk N., Polin V., Kovalenko E.

Quantity specification and qualitative characteristics modification of organic matter

The impact of long-term weathering and human intervention with varying intensity of the topsoil has reduced productivity and ecological sustainability in different agricultural ecosystems in comparison with natural biogeocenosises. In this activity content of carbon loosed the dynamics. It has strongly degraded cultivated land in the first three years of crop rotation then subsequently stabilized to reached the biological balance which present in a particular agrocenoses (0,6-0,8% Corg). The regularly concentrating soil with organic matter in a manure dose of 17,4 t/ha inhibited the mineralization process. Moreover, providing the carbon content at the level of 1,23 – 1,24% Corg. The humus content dynamic’s in herbaceous biogeocenosises has feebly marked accumulative principles. The quantity and qualitative parameters are identified in the sod-pod solid soil. Morever, the balance of central and peripheral parts of humic acids are actively involved in plant nutrition. The highest participation degree of central group are characterized by humic acids of degraded ecosystems (Z=0,52), and the lowest – in intensity (Z = 2,67) and the superintense (Z = 3,01).

Keywords: LONG-TERM EXPERIMENT, AGRICULTURAL ECOSYSTEMS, HUMUS, TRANSFORMATION PROCESSES, SPECIFIC CONSUMPTION ОF AGROCOENOSIS