From January 11th to the 19th 2003, as I was invited by the Coordinator of the Project “Aplicacion de la simbiosis diazotrófica entre Azolla y Anabaena como abono verde para el cultivo del arroz en Litoral Ecuatoriano”, ...

The artificial production of reactive nitrogen in agriculture at present is 140 Tg. The nitrogen production potential of paddy fields in the world reaches 219 Tg, that is widely enough for demands of agriculture and ...