Role of soil redox in growth and fertilizer nitrogen uptake by rice in Thailand paddy soils

abonos nitrogenados absorption de substances nutritives acid sulphate soils amendement calcique ammonium fertilizers arroz azote contenido de materia seca crecimiento croissance dispersion dispersions drainage drenaje dry matter content enmiendas calizas genetic soil types growth inceptisols irrigation lime liming materials mineral nutrients nitrogen nitrogen fertilizers nutrient uptake nutrientes minerales oryza sativa paddy soil potencial redox potentiel redox redox potential rice riego riz soil sol sol sulfate acide substance toxique suelo sulfate tailandia thailand toxic substances variedades varieties