Files
Abstract
Use of fertilizers keeps increasing on the global scale, primarily because of
increased fertilizer use in developing countries. In conditions of the global
economic crisis, the portion of expenditures for mineral fertilization increases
within the total price of main field crops.
Nitrogen fertilization cannot be omitted because of specific properties of
this macronutrients (migration down the soil profile).
Low humus content was found in a large number of soil samples taken on
the territory of the Vojvodina Province. This calls for a more intensive application
of organic fertilizers and restraint from the practice of burning harvest residues.
Phosphorus and potassium fertilization may be optimized if soil analyses
show that the levels of these macronutrients are above the optimum level (a
minimum of 15 mg/100 g of soil). Length of period during which phosphorus and
potassium fertilization will be omitted depends on the actual levels of these
elements in the soil and crops grown.