Abstract

Effect of nitrogen-sulphur nutrition and inhibitors of nitrification on the yield and quality of maize grain

Highlights

  • Increasing fertilization with nitrogen fertilizers contributed decisively to the rise of agricultural production (Dobermann and Cassmann, 2002; 2004)

  • The majority of the research indicates that nitrification inhibitors, when applied to soils in conjunction with N fertilizers or animal wastes, have beneficial effects on reducing nitrate leaching and nitrous oxide emissions, and, as a result, increase plant growth (Merino et al, 2002)

  • The nitrification inhibitor dikyandiamid (DCD) decreases NO3- leaching by inhibiting the growth and activity of the ammonia-oxidizing bacteria in the soil, slowing down the rate of nitrification and keeping the N in the NH4+ form which is adsorbed onto the soil

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Summary

Introduction

Increasing fertilization with nitrogen fertilizers contributed decisively to the rise of agricultural production (Dobermann and Cassmann, 2002; 2004). In reality agricultural crops take up only around 50 % of antropogenic input N (Cassmann et al, 2002; Galloway et al, 2003) resulting in negative impact on ecological systems (nitrate leaching, eutrophisation, acidification, gaseous N emissions) and adverse effect on the climate and the loss of biological soil diversity (Xi et al, 2010). For this reason a lot of research works deal with the reduction of these losses and more effective utilization of nitrogen fertilizers. The nitrification inhibitor dikyandiamid (DCD) decreases NO3- leaching by inhibiting the growth and activity of the ammonia-oxidizing bacteria in the soil, slowing down the rate of nitrification and keeping the N in the NH4+ form which is adsorbed onto the soil

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