Descubre y comparte nuestro conocimiento público

Se han encontrado 70 recursos

Resultados de búsqueda

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
Enlace permanente
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
Report 1999

Autor: Thomas, Richard J. Craswell, E.T.
Enlace original: https://cgspace.cgiar.org/handle/10568/71326

Investigación en Agricultura
Enlace permanente

Thomas, Richard J. ,  Craswell, E.T. ,  [Integrated natural resource management: the approach of the soil, water and nutrient management program] ,  Integrated natural resource management: the approach of the soil, water and nutrient management program
Report 1996

Autor: Amézquita Collazos, Edgar Sanz Scovino, José Ignacio Thomas, Richard J. Vera, Raúl R. Hoyos, P. Molina López, Diego Luis Chávez, Luis F.

Soil productivity and sustainability depends on the building and/or conservation of an adequate and dynamic equilibrium between physical, chemical and biological properties and processes in the volume of soil explored by roots, so that there is no constraints in the availability of water and nutr...

Enlace original: https://cgspace.cgiar.org/handle/10568/71571

Investigación en Agricultura
Enlace permanente

Amézquita Collazos, Edgar ,  Sanz Scovino, José Ignacio ,  Thomas, Richard J. ,  Vera, Raúl R. ,  Hoyos, P. ,  Molina López, Diego Luis ,  Chávez, Luis F. ,  [Características estructurales de los suelos de los Llanos Orientales de Colombia sometidos a varios sistemas de manejo] ,  Características estructurales de los suelos de los Llanos Orientales de Colombia sometidos a varios sistemas de manejo
Journal Article 2014

Autor: Qadir, Manzoor Quillérou, E. Nangia, V. Murtaza, G. Singh, M. Thomas, Richard J. Drechsel, Pay Noble, A.D.

Food security concerns and the scarcity of new productive land have put productivity enhancement of degraded lands back on the political agenda. In such a context, salt-affected lands are a valuable resource that cannot be neglected nor easily abandoned even with their lower crop yields, especial...

Enlace original: https://cgspace.cgiar.org/handle/10568/75867

Investigación en Agricultura
Enlace permanente
Qadir, Manzoor ,  Quillérou, E. ,  Nangia, V. ,  Murtaza, G. ,  Singh, M. ,  Thomas, Richard J. ,  Drechsel, Pay ,  Noble, A.D. ,  [Economics of salt induced land degradation and restoration, natural resources forum] ,  Economics of salt induced land degradation and restoration, natural resources forum
Conference Paper 2002

Autor: Amézquita Collazos, Edgar Friesen, Dennis K. Rivera, Mariela Rao, Idupulapati M. Barrios, Edmundo Jiménez Serna, Juan de la Cruz Decaëns, Thibaud Thomas, Richard J.
Enlace original: https://cgspace.cgiar.org/handle/10568/78719

Investigación en Agricultura
Enlace permanente

Amézquita Collazos, Edgar ,  Friesen, Dennis K. ,  Rivera, Mariela ,  Rao, Idupulapati M. ,  Barrios, Edmundo ,  Jiménez Serna, Juan de la Cruz ,  Decaëns, Thibaud ,  Thomas, Richard J. ,  [Sustainability of crop rotation and ley pasture systems on the acid-soil savannas of South America] ,  Sustainability of crop rotation and ley pasture systems on the acid-soil savannas of South America
Conference Paper 2000

Autor: Amézquita Collazos, Edgar Thomas, Richard J. Rao, Idupulapati M. Molina, D. L. Hoyos, P.
Enlace original: https://cgspace.cgiar.org/handle/10568/78731

Investigación en Agricultura
Enlace permanente

Amézquita Collazos, Edgar ,  Thomas, Richard J. ,  Rao, Idupulapati M. ,  Molina, D. L. ,  Hoyos, P. ,  [The influence of pastures on soil physical characteristics of an Oxisols in the Eastern Plaines (Llanos Orientales) of Colombia] ,  The influence of pastures on soil physical characteristics of an Oxisols in the Eastern Plaines (Llanos Orientales) of Colombia
Working Paper 2017

Autor: Thomas, Richard J. Reed, M. Clifton, K. Appadurai, Arivudai Nambi Mills, A. J. Zucca, Claudio Kodsi, E. Sircely, Jason A. Haddad, F. Hagen, C. von Mapedza, Everisto Wolderegay, K. Shalander, K. Bellon, M. Le, Q. B. Mabikke, Samuel Alexander, S. Leu, S. Schlingloff, S. Lala-Pritchard, T. Mares, V. Quiróz, R.

With current rates of land degradation reaching ten to twelve million ha per year, there is an urgent need to scale up and out successful, profitable and resource-efficient sustainable land management practices to maintain the health and resilience of the land that humans depend on. As much as 50...

Enlace original: https://cgspace.cgiar.org/handle/10568/89515

Investigación en Agricultura
Enlace permanente
Thomas, Richard J. ,  Reed, M. ,  Clifton, K. ,  Appadurai, Arivudai Nambi ,  Mills, A. J. ,  Zucca, Claudio ,  Kodsi, E. ,  Sircely, Jason A. ,  Haddad, F. ,  Hagen, C. von ,  Mapedza, Everisto ,  Wolderegay, K. ,  Shalander, K. ,  Bellon, M. ,  Le, Q. B. ,  Mabikke, Samuel ,  Alexander, S. ,  Leu, S. ,  Schlingloff, S. ,  Lala-Pritchard, T. ,  Mares, V. ,  Quiróz, R. ,  [Scaling up sustainable land management and restoration of degraded land] ,  Scaling up sustainable land management and restoration of degraded land
Book Chapter 1996

Autor: Boddey, Robert M. Rao, Idupulapati M. Thomas, Richard J.
Enlace original: https://cgspace.cgiar.org/handle/10568/82026

Investigación en Agricultura
Enlace permanente

Boddey, Robert M. ,  Rao, Idupulapati M. ,  Thomas, Richard J. ,  [Nutrient cycling and environmental impact of Brachiaria pastures] ,  Nutrient cycling and environmental impact of Brachiaria pastures
Journal Article 1999

Autor: Decaëns, Thibaud Rangel Becerra, AF Asakawa, N. Thomas, Richard J.

The effects of a large species of anecic earthworm, Martiodrilus carimaguensis Jiménez and Moreno, on soil C and N dynamics were investigated in a native savanna and a man-made pasture of the eastern plains of Colombia. We compared, across time (11 months), the total C, total N, NH+ 4 and NO– 3 c...

Enlace original: https://cgspace.cgiar.org/handle/10568/43243

Investigación en Agricultura
Enlace permanente
Decaëns, Thibaud ,  Rangel Becerra, AF ,  Asakawa, N. ,  Thomas, Richard J. ,  [Carbon and nitrogen dynamics in ageing earthworm casts in grasslands of the eastern plains of Colombia] ,  Carbon and nitrogen dynamics in ageing earthworm casts in grasslands of the eastern plains of Colombia

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso
Marcar todos
Limpiar todo