Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 1
Written by Murat GENCER, Mustafa GÖK
Nitrogen, which serves an important role in the vital activities of living organisms, is difficult to manage because it is highly mobile in soil. Nitrate, which is a form of mineral nitrogen, can cause economic and environmental effects through losses such as leaching and denitrification. Nitrification inhibitors slow down the biological process of nitrification in soil, preventing nitrate losses. In this study, the effects of DMPP and DCD on the nitrification process in soil with silty loam and alkaline textures were examined in an incubation conditions. The findings showed that the effects of DCD were still present on the 51st sampling day and both inhibitors were successfully inhibiting nitrification for more than 21 days. Soil mineral nitrogen content increased by 9% and 7% in the DCD and DMPP compared to the Control, respectively. DCD was found to be more effective at inhibiting nitrification in alkaline and silty loam soils. The impact of nitrification inhibitors on plant productivity and their function in mineral nitrogen losses require more research.
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