Nitrification inhibition in tropical soil under no‑tillage system

• Autor(a) principal: Moro, Edemar
• Data de Publicação: 2014
• Outros Autores: Nascente, Adriano Stephan, Crusciol, Carlos Alexandre Costa, Cantarella, Heitor
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista de Ciências Agrárias (Belém. Online)
• Texto Completo: https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1191

In no-tillage systems (NTS), biological activity and nitrification process in thesoil are higher due to higher organic matter and moisture contents, resulting in higher levelsof nitrate compared with areas under conventional tillage systems. However, nitrogen in theform of nitrate is more easily leached, helping to reduce nitrogen use efficiency (NUE) byplants, besides contaminating water resources. Therefore, the use of alternatives that promotethe persistence of ammonium in the soil contribute to increased nitrogen use efficiency inagricultural systems, as well as to their sustainability. The purpose of this review was todiscuss the process of nitrification inhibition. We observed that it is possible to increase thecontent of ammonium in the soil, contributing to the reduction of N loss through leachingand increasing the efficiency of nitrogen use by crops, thus providing sustainability toagricultural systems. To this end, the use of cover crops, such as Brachiaria species, andsynthetic nitrification inhibitors incorporated to nitrogen fertilizers are among the alternatives.Nevertheless, studies should be developed in order to clarify the conditions under whichthese cover crops can be introduced in agricultural systems for this purpose and also whichfactors interfere on the efficiency of synthetic nitrification inhibitors.