Improvement of Efficiency and Environmental Impact of Nitrogen Fertilizers in Irrigated Rice Cropping in South East Asia. Final Technical report

abonos de acción retardada abonos nitrogenados aplicación de abonos arroz irrigado chlorophylle chlorophylls clorofilas combinaciones de abonos engrais azoté engrais combiné engrais retard environmental impact fertilisation fertilizer application fertilizer combinations formulaciones formulation formulations impact sur l'environnement impacto ambiental irrigated rice nitrogen fertilizers riz irrigué slow release fertilizers