The effect of multi-component fertilizers on the yield and mineral composition of winter rye *

The objective of this study was to determine the effect of mixed multi-component fertilizers, Amofosmag 4 and Amofosmag 3, on winter rye yield, and the content and uptake of macronutrients. A three-year field experiment (2008–2010) was carried out in a randomized block design at the Research and Experimental Station in Tomaszkowo, at the University of Warmia and Mazury in Olsztyn. The tested crop was winter rye (Secale Cereale L.) cv. Dańkowskie Diament. The obtained results showed that fertilization multi-component fertilizers, especially Amofosmag 3 has the effect of increasing the yield of grain and straw of winter rye as compared to simple fertilizer. The concentrations of the analyzed macronutrients in winter rye grain and straw varied insignificantly between fertilization treatments. Simple and multi-component fertilizers exerted a comparable effect on the mineral composition of the test crop. Significant differences were observed in this respect between successive years of the study. The highest total uptake of nitrogen, potassium and calcium by rye plants was noted in treatments with simple fertilizers, and somewhat higher phosphorus uptake was observed in the Amofosmag 4 treatment. Total magnesium uptake was similar in all treatments. WPŁYW NAWOZÓW WIELOSKŁADNIKOWYCH NA PLONOWANIE I SKŁAD MINERALNY ŻYTA OZIMEGO Anna Nogalska, Stanisław Sienkiewicz, Jerzy Czapla, Małgorzata Skwierawska Katedra Chemii Rolnej i Ochrony Środowiska Uniwersytet Warmińsko-Mazurski w Olsztynie S ł o w a k l u c z o w e: żyto ozime, plon, makroelementy, nawozy wieloskładnikowe, pobranie. Address: Anna Nogalska, University of Warmia and Mazury, ul. Michała Oczapowskiego 8, 10-718 Olsztyn, Poland, phone: +48 (89) 523 32 50, e-mail: anna.nogalska@uwm.edu.pl * This study was financed by Agrochem Ltd., Dobre Miasto.