Soya in extreme years
2015
The paper deals with the results of the varietal macro trials on soya in 2013 i 2014 at the location Aleksandrovac, micro trial with fertilizers at the location Aleksandrovac in 2014 and micro trial with fertilizers at the location Banja Luka in 2013. Both vegetation seasons have been characterised with very extreme weather conditions. Achieved yields (536 - 1.216 kg ha-1) in the varietal macro trial in very dry vegetation season 2013 were significantly lower than the yields (3.022 - 4.133 kg ha-1) in very rainy season in 2014. The traits of permeable, alluvial soil had dominant influence on the yield results in Aleksandrovac in the both years. The micro trials with the fertilizers were performed on the variety Sonja. Raising doses of fertilizer (MAP 100-200-300 kg ha-1, N10:P30:K20 200-300 -400 kg ha-1 and N15:P15:K15 200-400-600 kg ha-1) in 2014 did not result with economically justified grain yield increase. Similar results were obtained at the location Banja Luka in the previous year, what impose the need for more detailed study of this agrotechnical operation in the future.
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