Original scientific paper
https://doi.org/10.5513/JCEA01/17.4.1806
Effect of nitrification inhibitors on the content of available nitrogen forms in the soil under maize (Zea mays, L.) growing
Zuzana PANÁKOVÁ
; Department of Agrochemisty and Plant Nutrition, Faculty of Agrobiology and Food Resources, SlovakUniversity of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
Pavol SLAMKA
; Department of Agrochemisty and Plant Nutrition, Faculty of Agrobiology and Food Resources, SlovakUniversity of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
Otto LOŽEK
; Department of Agrochemisty and Plant Nutrition, Faculty of Agrobiology and Food Resources, SlovakUniversity of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
Abstract
The objective of this research was to investigate the effect of nitrification inhibitors (dicyandiamide and 1,2,4 triazole) on the content of nitrate and ammonium nitrogen in the soil and the effectiveness of nitrogen-sulphur nutrition of maize. The research was conducted in field small-plot experiment with maize on Haplic Luvisol with dominance of clay fraction in experimental years 2012 to 2015. The dose of nitrogen in all experimental treatments was 160 kg*ha-1 and was applied at one shot or split in three partial doses. Soil samples from all examined treatments were taken from three soil depths (0.0-0.3 m, 0.3-0.6 m and 0.6-0.9 m, respectively) by probe rod in 4- 5 week intervals. Achieved results indicate that on the average of four years and three depths of the soil profile, application of nitrification inhibitors contained in fertilizer ENSIN considerably reduced portion of nitrate nitrogen from the content of mineral nitrogen in the soil by 7-32 relative %. The application of fertilizer ENSIN considerably increased content of ammonium nitrogen in the soil by 10-59 relative %. A favourable effect on increase of ammonium nitrogen content and reduction of nitrate nitrogen content was found out in spite of the fact that in this treatment the total dose of fertilizer was applied at one shot.
Keywords
ammonium cation; fertilization; nitrates; nitrification; nitrification inhibitors
Hrčak ID:
170844
URI
Publication date:
16.12.2016.
Visits: 1.516 *