Do tropical climatic conditions reduce the effectiveness of nitrification inhibitors? A meta-analysis of studies carried out in Brazil

Abstract Extensive research has been performed into the effectiveness of nitrification inhibitors (NIs) in preventing N losses; however, tropical agriculture underrepresented recent meta-analyses. Here, we apply a meta-analytic approach using data from 50 articles to identify impact NIs (DMPP, DCD, and DCD + NBPT) on crop yield, 2 O emissions, soil NH 4 NO 3 − concentrations, volatilization subtropical regions Brazil. In addition, survey includes information about location; climate zone; cultivated crops; pH; organic carbon; texture; experimental method; management; irrigation; fertilizer source, rate, type; NI type rate. Overall, set showed that increased yield concentrations by 60%, respectively, whereas emissions were reduced 62 31%, respectively. Ammonia was not changed application. However, combination with urease inhibitor decreased such losses 39%. The highest irrigated fields, fine-textured soils, mineral sources. Moreover, performance Brazil found be similar climates, also comparable values previously reported meta-analyses, including those conducted temperate climates. Therefore, application is indicated an efficient strategy delay mitigate agroecosystems.