ORGANOMİNERAL GÜBRE KULLANIMININ TOPRAK AZOT PROSESLERİNE ETKİSİ.

The aim of this study is to determine the effects of using solid organomineral fertilizers under optimal conditions on soil nitrogen processes. To evaluate the effects of different concentrations of organomineral fertilizers on soil nitrogen processes, 100g soil samples were treated with varying amounts (20 ve 40 g kg-1) of organomineral fertilizers. The samples were then incubated under controlled conditions in the dark at 28°C for 15 and 30 days. NH4-N, NO3-N, arginine ammonification rate, and nitrification potential were determined in the samples. The results showed that soil nitrogen processes can be used as a bioindicator to determine the effect of organomineral fertilizer application on soil productivity. A significant increase in ammonium nitrogen levels was observed in soils treated with 20 ve 40 g kg-1 Organomineral fertilizers, with increases of 71% and 73%, respectively. In addition, the ammonification rate increased by 61-80% after incubation. When the soils were evaluated for nitrate content, it was found that both doses of organomineral fertilizer treatment suppressed nitrification potential by reducing nitrate concentrations. The data obtained suggest that the use of organomineral fertilizers can increase nitrogen use efficiency in plants and improve the productivity of terrestrial ecosystems. This indicates that the use of organomineral fertilizers can reduce environmental problems caused by excessive fertilizer use and improve soil quality, thus increasing agricultural productivity for more sustainable agriculture. [ABSTRACT FROM AUTHOR]