Published in Scientific Papers. Series A. Agronomy, Vol. LXII, Issue 2
Written by Gheorghe JIGĂU, Elena TOFAN, Nina PLĂCINTĂ, Ana BÂRSAN, Cristian JIGĂU, Natalia BORŞ, Dumitriţa COJOCARU, Grigore COJOCARU
Arable chernozems in the Carpatho-Danubian-Pontic space have entered in a new natural-anthropogenic evolutionary phase caused by the reduction to the minimum of formation process and humus accumulation in their evolution, reflected in the degradation of function and physical regimes. Reducing its role is caused by unidirectional modification, the biotic and abiotic factors responsible for the formation process and accumulation of humus, hydrothermal and aerodynamic regimes, reduction of bioenergetic resources, quantitative reduction and qualitative degradation of soil biota, reduction of biological nitrogen reserves in the soil. Restoring its priority role in the evolution of chernozems requires unidirectional optimization of specified factors. Our research during the period 20102018 showed that to achieve this objective more indicative are adaptive - landscape - ameliorative agrobiotechnologies and the main component are: use of tillage systems selected according to physical state of soils, restoration of soil biota through the systematic administration of biohumic products in soils.
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