Published in Scientific Papers. Series A. Agronomy, Vol. LXVII, Issue 1
Written by Plamen ZOROVSKI
The study was conducted in the period 2017-2020 at the Agricultural University, Plovdiv, Bulgaria. A comparative study of growth and development of common winter wheat variety Trakiyka under organic and conventional farming conditions was conducted. To achieve the objective, a two-factorial field experiment was set up using the method of fractional plots with a plot size of 10.5 m2, in three replications. The soil fertilizers YaraMila Complex (for the conventional) and Italpolina (for the organic) were applied in the two agrocenoses. No differences were found in the occurrence and duration of phenological phases and interphase periods. Differences in plant height were found on average over the study period. In conventional technology, plants at full ripeness are 3.4 cm taller than those in organic - 94.45 cm. Under conditions of conventional agrocenosis, the cultivar forms a higher number of tillers per plant - 3.2 compared to the organic - 2.7. The tendency is maintained in the indicators number of productive tillers per plant and number productive stem/m2. The cultivar shows comparative stability of both indicators under conventional and organic cultivation.
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