Nitrification and urease inhibitors reduce gaseous N losses and improve nitrogen use efficiency in wheat exposed to elevated CO2 and temperature

Summary

Introduction Climate change significantly impacts food production by influencing crop growth and soil processes. Rising atmospheric CO 2 levels and temperatures may affect reactive nitrogen losses from cultivated soils. This study aimed to quantify the effects of nitrification and urease inhibitors on reactive nitrogen losses from wheat soils in the context of elevated CO 2 and temperature interactions. Methods An experiment was conducted in open top chambers for two consecutive years to quantify the effect of nitrification and urease inhibitors on ammonia (NH 3 ), and nitrous oxide (N 2 O) emissions in wheat under elevated carbon dioxide (EC), elevated temperature (ET) and their interaction (ECT). The carbon dioxide (CO 2 ) concentration ranged from 552 to 568 ppm in the EC treatment, whi