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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

The decomposition and nutrient release of 12 plant materials were assessed in a 20-week litterbag field study in hillsides from Cauca, Colombia. Leaves of Tithonia diversifolia (TTH) and Indigofera constricta (IND) decomposed quickly (k=0.035±0.002 d?1), while those of Cratylia argentea (CRA) and...


Cobo Borrero, Juan G.Barrios, E.Kass, DCLThomas, Richard J.[Decomposition and nutrient release by green manures in a tropical hillside agroecosystem]Decomposition and nutrient release by green manures in a tropical hillside agroecosystem

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