Studies on nitrogen losses [ammonium sulphate, urea] due to volatilization in rice soils

agricultural chemicals ammonium compounds ammonium sulphate anthropogenic soil types atmospheric sciences azote compuestos de amonio elements engrais environment environnement evaporation fertilizantes nitrogenados fertilizers gases gaz hidrometeorologia hydrometeorologie hydrometeorology losses medio ambiente meteorologia meteorologie meteorology nitrogen nitrogen fertilizers no metales nonmetals organic compounds organic nitrogen compounds paddy soils perte physical states produit agrochimique profitability rentabilidad site factors soil types sulfato de amonio type de sol urea uree