THE EFFECTIVENESS OF NITROGEN-PHOSPHORUS FERTILIZATION IN WINTER WHEAT (TRITICUM AESTIVUM L.) CULTIVATION

J. Igras, M. Karsznia, P. Rusek, U. Sienkiewicz-Cholewa, M. Mikos-Szymańska

Abstract: The objective of the study was to evaluate the effect of the ureasuperphosphate (USP) fertilizer effectiveness on yield and quality of winter wheat in comparison to coventional fertilizer (CSP – concentarted superphosphate with urea). In the years 2011–2014, the field experiments were conducted in a randomized complete block design with four replications. In the research, USP and CSP (40% P2O5) with urea (46% N) fertilizers were applied at two doses: optimal (80 kg P2O5, 168 kg N/ha) and reduced (50 kg P2O5, 105 kg N/ha).The results indicate that USP fertilizer has showed good assimilability of nitrogen
and phosphorus by plants and equivalent to studied conventional fertilizer. The average yields of wheat were statistically significant higher averagely by about 30% after application of USP and CSP with urea fertilizers comparing to wheat yield from non-fertilized plots. The nitrogen-phosphorus fertilization increased the nitrogen, protein and gluten contents in wheat grains and had the positive influence on wheat quality. The studied USP fertilizer product showed a good fertilization value.

Keywords: mineral fertilizer; plant nutrition; protein content; wet gluten content

Date published: 2017-08-28