Reaction of barley varieties to nitrogen-potassium fertilization
2017
Kostadinova, Svetla | Panayotova, Galia
Reaction of barley varieties to nitrogen (0, 200, 400, 600 mg N.kg-1 soil) and potassium (0, 200, 400 mg K2O.kg-1 soil) fertilization was studied on a background of 200 mg P2O5.kg-1 soil under greenhouse conditions in a pot experiment. The highest grain yield and dry biomass in maturity was obtained at a moderate nitrogen and high potassium fertilization N400K400. High nitrogen-potassium supply N600K400 increased the grain protein concentration and protein yield. Genotypic response was established at moderate nitrogen fertilization combined with K0-400 where standard Obzor demonstrated the highest productivity, followed by Emon, and Krami.
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