Bulgarian Journal of Agricultural Science
Array ( [session_started] => 1718907104 [LANGUAGE] => EN [LEPTON_SESSION] => 1 )
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Thousand kernel weight of durum wheat (Triticum durum Desf.) over a 30-year period as affected by mineral fertilization and weather conditions
Stefka Stefanova-Dobrevaorcid, Angelina Muhovaorcid
Abstract: The aim of the study was to determine the influence of mineral fertilization and weather conditions on thousand kernel weight over a 30-year period. The experiment was carried out at the Field Crops Institute-Chirpan, Bulgaria and represents 30 consecutive years (1990-2019). Nitrogen and phosphorus fertilizers were studied in rates of 0, 40, 80, 120 and 160 kg ha-1. Fertilizers were applied alone and in different combinations. A variant without fertilization (N0P0) was taken as control. The results showed the strong dependence of the thousand kernel weight on the conditions of the year and nitrogen fertilization. The most suitable conditions for growing durum wheat were moderately dry years with normal temperatures for the region. We also found that long-term single application of N above 80 kg ha-1 resulted in a decrease in values. A single application of phosphorus has no effect. The highest thousand kernel weight, averaged over a 30-year period, was recorded when fertilized with N80P120, the excess over the control being 4.70%.
Keywords: durum wheat; meteorological conditions; nitrogen; phosphorus; thousand kernel weight
Citation: Stefanova-Dobreva, S. & Muhova, A. (2024). Thousand kernel weight of durum wheat (Triticum durum Desf.) over a 30-year period as affected by mineral fertilization and weather conditions. Bulg. J. Agric. Sci., 30(2), 247–253
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Date published: 2024-04-26
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