Productivity of Common Wheat (Triticum aestivum L.) Depending on Predecessor and the Level of Nitrogen Fertilization
Keywords:
wheat, predecessor,, nitrogen fertilization,, elements of productivity,, grain yieldAbstract
In a field experiment during the period of 2005-2008 in south-east Bulgaria for estimation the influence of different predecessors (sunflower, stubble, coriander and sorghum) and the rate of nitrogen fertilization on productivity of the common winter wheat variety Prelom. The analysis of the results show that the predecessor and nitrogen rate in combination with meteorological conditions during the years of the study were decisive factors for the expression of the productivity of common winter wheat variety Prelom. The most suitable predecessor for the wheat under the conditions of south-east Bulgaria is the coriander, followed by sunflower and stubble. The sorghum was a unsuitable predecessor. The most effective fertilization rates are N120P80 with predecessor coriander and N160P80 with sunflower and stubble.
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