selected publications
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letter
- PASTURE SOILS AS CARBON SINK - REPLY. Nature. 473-473. 1995
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article
- Efecto de especies y manejo de abonos verdes de leguminosas en la producción y calidad de un cultivo forrajero utilizado en sistemas ganaderos del trópico seco. Archivos De Zootecnia. 66:99-106. 2017
- Advances in improving tolerance to waterlogging in Brachiaria grasses 2013
- Alternative plant protein sources for pigs and chickens in the tropics – nutritional value and constraints: a review. Journal of Agriculture and Rural Development in the Tropics and Subtropics. 113:101-123. 2012
- Detecting bacterial endophytes in tropical grasses of the Brachiaria genus and determining their role in improving plant growth. African Journal of Biotechnology. 10:965-976. 2011
- Influence of cultivation site and fertilisation on the properties of condensed tannins and in vitro ruminal nutrient degradation of Calliandra calothyrsus, Flemingia macrophylla and Leucaena leucocephala. Animal Feed Science and Technology. 157:30-40. 2010
- Effect of season, soil type and fertilizer on the biomass production and chemical composition of five tropical shrub legumes with forage potential. Grass and Forage Science. 64:255-265. 2009
- In vitro assessment of the suitability of replacing the low-tannin legume Vigna unguiculata with the tanniniferous legumes Leucaena leucocephala, Flemingia macrophylla or Calliandra calothyrsus in a tropical grass diet. Animal Feed Science and Technology. 147:105-115. 2008
- In vitro ruminal fermentation of tanniniferous tropical plants: Plant-specific tannin effects and counteracting efficiency of PEG. Animal Feed Science and Technology. 146:222-241. 2008
- The ruminal degradability of fibre explains part of the low nutritional value and reduced methanogenesis in highly tanniniferous tropical legumes. Journal of the Science of Food and Agriculture. 88:1794-1803. 2008
- Effect of the tropical tannin-rich shrub legumes Calliandra calothyrsus and Flemingia macrophylla on methane emission and nitrogen and energy balance in growing lambs.. Animal. 2:790-799. 2008
- Nutrient composition and in vitro ruminal fermentation of tropical legume mixtures with contrasting tannin contents. Animal Feed Science and Technology. 138:29-46. 2007
- Biological nitrification inhibition (BNI)—is it a widespread phenomenon?. Plant and Soil. 294:5-18. 2007
- Effects of tannins on ruminal degradation and excretory pattern of N and implications for the potential N emission from the manure 2006
- The effects of cultivation site on forage quality of Calliandra calothyrsus var. Patulul. Agroforestry Systems. 68:209-220. 2006
- Phenological, agronomic and forage quality diversity among germplasm accessions of the tropical legume shrub Cratylia argentea. The Journal of Agricultural Science. 144:237-248. 2006
- Forage quality and tannin concentration and composition of a collection of the tropical shrub legume Flemingia macrophylla. Journal of the Science of Food and Agriculture. 86:1023-1031. 2006
- Morphological, agronomic and forage quality diversity of the Flemingia macrophylla world collection. Field Crops Research. 96:387-406. 2006
- The effect of mixing prunings of two tropical shrub legumes (Calliandra houstoniana and Indigofera zollingeriana) with contrasting quality on N release in the soil and apparent N degradation in the rumen. Plant and Soil. 280:357-368. 2006
- Effects of sample post harvest treatment on aerobic decomposition and anaerobic in-vitro digestion of tropical legumes with contrasting quality. Plant and Soil. 269:159-170. 2005
- Effects of Sapindus saponaria fruits on ruminal fermentation and duodenal nitrogen flow of sheep fed a tropical grass diet with and without legume. Journal of Animal Science. 82:1392-1400. 2004
- Ruminal fermentation, methanogenesis and nitrogen utilization of sheep receiving tropical grass hay-concentrate diets offered with Sapindus saponaria fruits and Cratylia argentea foliage. Animal Science. 79:177-189. 2004
- Saponin rich tropical fruits affect fermentation and methanogenesis in faunated and defaunated rumen fluid. Animal Feed Science and Technology. 109:79-94. 2003
- Biological nitrogen fixation: A key input to integrated soil fertility management in the tropics 2003
- Forage technology adoption: linking on-station research with participatory methods. Tropical Grasslands. 37:197-203. 2003
- In vitro degradability of mature and immature leaves of tropical forage legumes differing in condensed tannin and non-starch polysaccharide content and composition. Journal of the Science of Food and Agriculture. 83:1256-1266. 2003
- Supplementation of a tropical grass diet with forage legumes and Sapindus saponaria fruits: effects on in vitro ruminal nitrogen turnover and methanogenesis. AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH. 54:703-713. 2003
- Effect of sward attributes on legume selection by oesophageal-fistulated and non-fistulated steers grazing a tropical grass-legume pasture. Tropical Grasslands. 36:227-238. 2002
- Use of the mature and young silvery Cratylia as protein bank for cows of milk.. REVISTA CIENTIFICA-FACULTAD DE CIENCIAS VETERINARIAS. 12:595-598. 2002
- Comparison of the Precipitation of Alfalfa Leaf Protein and Bovine Serum Albumin by Tannins in the Radial Diffusion Method. Journal of the Science of Food and Agriculture. 74:513-523. 1997
- A Method for Isolating Condensed Tannins from Crude Plant Extracts with Trivalent Ytterbium. Journal of the Science of Food and Agriculture. 74:359-368. 1997
- Valor nutritivo de Centrosema y producción animal 1997
- Calidad nutritiva y utilización de Cratylia argentea 1996
- El arachis: Una leguminosa multipropósito 1996
- THE EFFECT OF MIXTURES OF SUN-DRIED TROPICAL SHRUB LEGUMES INTAKE AND NITROGEN-BALANCE BY SHEEP. Tropical Grasslands. 29:92-96. 1995
- THE EFFECT OF WILTING AND DRYING ON INTAKE RATE AND ACCEPTABILITY BY SHEEP OF THE SHRUB LEGUME CRATYLIA-ARGENTEA. Tropical Grasslands. 29:97-101. 1995
- Adaptation responses of tropical grass-legume associations to acid soils 1993
- Edaphic and climatic factors that affect intake and selectivity of forage plants under grazing 1993
- Recommendations for evaluating germplasm under small-plot grazing 1993
- Oesophageal fistulated cattle can give unreliable estimates of the proportion of legume in the diets of resident animals grazing tropical pastures. Grass and Forage Science. 47:128-132. 1992
- Forage quality and animal selection of Arachis pintoi in association with tropical grasses in the eastern plains of Colombia. Grass and Forage Science. 43:433-439. 1988
- Qualitative and quantitative intake of steers grazing native grasslands supplemented with a legume pasture in the eastern plains of Colombia. Journal of Animal Breeding and Genetics. 105:154-159. 1988
- A strategy for the gradual replacement of native savanna on an Oxisol in Eastern Colombia 1984
- Aspectos de calidad forrajera de Brachiaria humidicola (Rendle) Sc hweickt en la altillanura plana de los Llanos Orientales de Colombia 1982
- Algunos aspectos sobre utilizacion de mezclas gramineas: Leguminosas en el tropico 1981
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document
- Establecimiento y manejo de pasturas de Centrosema 1997
- An integrated approach to soil-plant-animal interactions on grazed legume-based pastures on tropical acid soils 1993
- Nutrient cycling via forage litter in tropical grass-legume pastures 1993
- Estrategias para mejorar la eficiencia de utilización de sabanas nativas en el trópico húmedo 1987
- Mediciones en la pastura en ensayos de pastoreo 1986
- Bancos de proteina como alternativa para la suplementacion del ganado en pastoreo 1985
- Medicion de consumo bajo pastoreo 1982
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review
- LivestockPlus - The sustainable intensification of forage-based agricultural systems to improve livelihoods and ecosystem services in the tropics. Tropical Grasslands - Forrajes Tropicales. 59-82. 2015
- Alternative plant protein sources for pigs and chickens in the tropics - nutritional value and constraints: a review. Journal of Agriculture and Rural Development in the Tropics and Subtropics. 101-123. 2012