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Journal Article 2010

Autor: Cobo Borrero, Juan G. Dercon, G. Cadisch, Georg

Nutrient balances are useful tools as indicators of potential land degradation and for optimizing nutrient use, and are thus highly relevant in the African context. A comprehensive literature review on nutrient balances in Africa was carried out to illustrate the main approaches, challenges, and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/43897

Investigación en Agricultura
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Cobo Borrero, Juan G. ,  Dercon, G. ,  Cadisch, Georg ,  [Nutrient balances in African land use systems across different spatial scales: a review of approaches, challenges and progress] ,  Nutrient balances in African land use systems across different spatial scales: a review of approaches, challenges and progress
Journal Article 2002

Autor: Cobo Borrero, Juan G. Barrios, E. Kass, DCL Thomas, Richard J.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/43893

Investigación en Agricultura
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Cobo Borrero, Juan G. ,  Barrios, E. ,  Kass, DCL ,  Thomas, 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
Journal Article 2002

Autor: Cobo Borrero, Juan G. Barrios, E. Kass, DCL Thomas, Richard J.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/42717

Investigación en Agricultura
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Cobo Borrero, Juan G. ,  Barrios, E. ,  Kass, DCL ,  Thomas, 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
Journal Article 2004

Autor: Barrios, E. Cobo Borrero, Juan G.

Planted fallow systems under slash and mulch management were compared with natural fallow systems at two farms (BM1 and BM2) in the Colombian Andes. The BM1 site was relatively more fertile than the BM2 site. Planted fallow systems evaluated included Calliandra calothyrsus CIAT 20400 (CAL), Ind...

Enlace original: https://cgspace.cgiar.org/handle/10568/43958

Investigación en Agricultura
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Barrios, E. ,  Cobo Borrero, Juan G. ,  [Plant growth, biomass production and nutrient accumulation by slash/mulch agroforestry systems in tropical hillsides of Colombia] ,  Plant growth, biomass production and nutrient accumulation by slash/mulch agroforestry systems in tropical hillsides of Colombia
Journal Article 2005

Autor: Barrios, Edmundo Cobo Borrero, Juan G. Rao, Idupulapati M. Thomas, Richard J. Amézquita Collazos, Edgar Jiménez Jaén, Juan José Rondón, Marco Antonio
Enlace original: https://cgspace.cgiar.org/handle/10568/77688

Investigación en Agricultura
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Barrios, Edmundo ,  Cobo Borrero, Juan G. ,  Rao, Idupulapati M. ,  Thomas, Richard J. ,  Amézquita Collazos, Edgar ,  Jiménez Jaén, Juan José ,  Rondón, Marco Antonio ,  [Fallow management for soil fertility recovery in tropical Andean agroecosystems in Colombia] ,  Fallow management for soil fertility recovery in tropical Andean agroecosystems in Colombia
Journal Article 2009

Autor: Delve, Robert J. Probert, ME Cobo Borrero, Juan G. Ricaurte Oyola, José Jaumer Rivera Pena, M Barrios, E. Rao, Idupulapati M.

Crop simulation models have been used successfully to evaluate many systems and the impact of change on these systems, e.g. for climatic risk and the use of alternative management options, including the use of nitrogen fertilisers. However, for low input systems in tropical and subtropical region...

Enlace original: https://cgspace.cgiar.org/handle/10568/44099

Investigación en Agricultura
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Delve, Robert J. ,  Probert, ME ,  Cobo Borrero, Juan G. ,  Ricaurte Oyola, José Jaumer ,  Rivera Pena, M ,  Barrios, E. ,  Rao, Idupulapati M. ,  [Simulating phosphorus responses in annual crops using APSIM : Model evaluation on contrasting soil types] ,  Simulating phosphorus responses in annual crops using APSIM : Model evaluation on contrasting soil types
Journal Article 2010

Autor: Cobo Borrero, Juan G. Dercon, G. Yekeye, T Chapungu, L Kadzere, C Murwira, A Delve, Robert J. Cadisch, Georg

Knowledge of soil spatial variability is important in natural resource management, interpolation and soil sampling design, but requires a considerable amount of geo-referenced data. In this study, mid-infrared spectroscopy in combination with spatial analyses tools is being proposed to facilitate...

Enlace original: https://cgspace.cgiar.org/handle/10568/43600

Investigación en Agricultura
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Cobo Borrero, Juan G. ,  Dercon, G. ,  Yekeye, T ,  Chapungu, L ,  Kadzere, C ,  Murwira, A ,  Delve, Robert J. ,  Cadisch, Georg ,  [Integration of mid-infrared spectroscopy and geostatistics in the assessment of soil spatial variability at landscape level] ,  Integration of mid-infrared spectroscopy and geostatistics in the assessment of soil spatial variability at landscape level
Journal Article 2016-11-01

Autor: Adamtey, Noah Musyoka, M.W. Zundel, C. Cobo Borrero, Juan G. Karanja, E. Fiaboe, K.K.M. Muriuki, A. Mucheru-Muna, M. Vanlauwe, Bernard Berset, E. Messmer, M.M. Gattinger, A. Bhullar, G.S. Cadisch, Georg Fliessbach, A. Mäder, Paul Niggli, U. Foster, D.

In 2007 two long-term trials were established in Kenya to contribute research-based evidence to the global debate on the productivity, economic viability and sustainability of different agricultural production systems. These trials compare conventional (Conv) and organic (Org) farming systems at ...

Enlace original: https://cgspace.cgiar.org/handle/10568/77403

Investigación en Agricultura
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Adamtey, Noah ,  Musyoka, M.W. ,  Zundel, C. ,  Cobo Borrero, Juan G. ,  Karanja, E. ,  Fiaboe, K.K.M. ,  Muriuki, A. ,  Mucheru-Muna, M. ,  Vanlauwe, Bernard ,  Berset, E. ,  Messmer, M.M. ,  Gattinger, A. ,  Bhullar, G.S. ,  Cadisch, Georg ,  Fliessbach, A. ,  Mäder, Paul ,  Niggli, U. ,  Foster, D. ,  [Productivity, profitability and partial nutrient balance in maize-based conventional and organic farming systems in Kenya] ,  Productivity, profitability and partial nutrient balance in maize-based conventional and organic farming systems in Kenya
Journal Article 1999

Autor: Cobo Borrero, Juan G. Kass, D Muschler, R Arze Borda, JA Barrios, E. Thomas, Richard J.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/65789

Investigación en Agricultura
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Cobo Borrero, Juan G. ,  Kass, D ,  Muschler, R ,  Arze Borda, JA ,  Barrios, 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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