Influence of mononitrogen fertilizer system on biochemical status of Luvisol sandy loam soil with high contents of phosphorus and potassium
https://doi.org/10.29235/1561-8323-2018-62-5-633-640
Abstract
The effect of mononitrogen fertilizer system on biochemical status of high fertility Luvisol sandy loam soil was studied during five years in the field experiment. Data interpretation of enzyme diagnostics was done based on the resulting estimation criteria, which is a biochemical coefficient including four key enzymatic parameters and representing the ratio of average speeds of humification and mineralization activities in С and N cycles. Five-year application of mono nitrogen fertilizer system resulted in progressive increase of organic substances mineralization, which enhanced with nitrogen dose rising. It is ecologically advisable to fertilize the soil with the complete mineral fertilizer with the minimal doses of phosphorus and potassium. Thus, humification and mineralization processes are balanced and organic matter is saved.
About the Authors
V. V. Lapa
National Academy of Sciences of Belarus, Institute for Soil Science and Agrochemistry
Belarus
Belarus
Lapa Vitalij Vitalyevich - Academician, D. Sc. (Agrarian), Professor, Director.
90, Kazinets Str., 220108, Minsk
N. A. Mikhailouskaya
National Academy of Sciences of Belarus, Institute for Soil Science and Agrochemistry
Belarus
Belarus
Mikhailouskaya Natallia Alekseevna - Ph. D. (Agrarian), Associate professor, Head of the Laboratory.
90, Kazinets Str., 220108, Minsk
S. A. Kasyanchyk
National Academy of Sciences of Belarus, Institute for Soil Science and Agrochemistry
Belarus
Belarus
Kasyanchyk Sviatlana Ananievna - Ph. D. (Agrarian), Associate professor.
90, Kazinets Str., 220108, Minsk
E. G. Mezentseva
National Academy of Sciences of Belarus, Institute for Soil Science and Agrochemistry
Belarus
Belarus
Mezentseva Elena Gennadievna - Ph. D. (Agrarian), Associate professor, Head of the Laboratory.
90, Kazinets Str., 220108, Minsk
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