Abstract

It were studied the enzymatic activity, the microbial population and the intensity of nitrification, ammonification, CO2 emission and cellulose decomposition in gray-brown, meadow-sierozemic, alluvial meadow-forest and yellow-gley (zheltozem) soils in the subtropical zone of Azerbaijan under vegetable cultures in crop rotation and permanent crops. On this basis, the biological diagnostics of these soils were suggested and the soil ecological health was evaluated. It was shown that properly chosen crop rotation systems on irrigated lands make it possible to preserve the fertility of the meadow-forest alluvial and zheltozem-gley soils and to improve the fertility of the gray-brown and meadow-sierozemic soils.

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