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Leaves of nine green manure (GM) species were surface applied to a tropical volcanic-ash soil at a rate of 100 kg N ha 1 in order to evaluate their N-fertilizer value in a glasshouse experiment. GM treatments were compared to urea at two rates, 50 kg N ha 1 (FN50) and 100 kg N ha 1 (FN100), and t...


Cobo Borrero, Juan G.Barrios, E.Kass, DCLThomas, Richard J.[Nitrogen mineralization and crop uptake from surface-applied leaves of green manure species on a tropical volcanic-ash soil]Nitrogen mineralization and crop uptake from surface-applied leaves of green manure species on a tropical volcanic-ash soil
Guimaraes, Elcio PerpétuoSanz Scovino, José IgnacioRao, Idupulapati M.Amézquita, María CristinaAmézquita Collazos, EdgarThomas, Richard J.[Agropastoral systems for the tropical savannas of Latin America]Agropastoral systems for the tropical savannas of Latin America
Thomas, Richard J.Lascano, Carlos E.Sanz Scovino, José IgnacioAra, MASpain, James M.Vera, Raúl R.Fisher, Myles J.[The role of pastures in production systems]The role of pastures in production systems

The capacity of woody and non-woody species to supply N to rice (Oryza sativa) was evaluated in field and greenhouse experiments in Palmira, Colombia. N liberation rates decreased in the order: Indigofera constricta > Mucuna deerengianum > Mucuna pruriens var. Brunin > Tithonia diversifo...


Cobo Borrero, Juan G.Kass, DMuschler, RArze Borda, JABarrios, E.Thomas, Richard J.[Abonos verdes de leñosas y no leñosas como fuente de nitrógeno a cultivos anuales]Abonos verdes de leñosas y no leñosas como fuente de nitrógeno a cultivos anuales

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