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The savannas of eastern Colombia located in the Orinoco river basin represent 18% of the Latin American neotropical savannas, and those areas that are tillable and closer to markets are subject to considerable anthropic pressure in the quest for intensification. Historically, and even today, beef...


Ramírez Restrepo, Carlos A.Vera, Raúl R.Rao, Idupulapati M.[Dynamics of animal performance, and estimation of carbon footprint of two breeding herds grazing native neotropical savannas in eastern Colombia]Dynamics of animal performance, and estimation of carbon footprint of two breeding herds grazing native neotropical savannas in eastern Colombia

Datos nacionales e incluso departamentales de anemia y desnutrición crónica se recolectan con periodicidad. Es raro encontrar datos a nivel municipal del estado nutricional de una población, información necesaria para focalizar intervenciones. Un esquema conceptual se desarrolló, aplicó y válido....


Vesga Varela, ALPachón, HelenaHyman, GlennMonserrate Rojas, FAZapata Caldas, E[Un esquema conceptual para identificar localidades con poblaciones en riesgo de anemia y desnutrición crónica]Un esquema conceptual para identificar localidades con poblaciones en riesgo de anemia y desnutrición crónica

Results of preliminary experimentation with a computer based simulation model of beef production in theEastern Savannas of Colombia are reported The energetic consequences of various uses of sown pasturesare examined with reference to their long term biological feasibility The quality of grass le...


Thornton, Philip K.[Computer experimentation with an energy-based simulation model of animal production in the eastern savannas of Colombia]Computer experimentation with an energy-based simulation model of animal production in the eastern savannas of Colombia

Modern restructuring of agricultural landscapes, due to the expansion of monocultures and the resulting elimination of non-crop habitat, is routinely blamed for rising populations of agricultural insect pests. However, landscape studies demonstrating a positive correlation between pest densities ...


Parsa, SCcanto, Raul I.Rosenheim, JA[Resource concentration dilutes a key pest in indigenous potato agriculture]Resource concentration dilutes a key pest in indigenous potato agriculture

The assumed relationship between biodiversity or local richness and the persistence of ‘ecosystem services’ (that can sustain productivity on-site as well as off-site, e.g. through regulation of water flow and storage) in agricultural landscapes has generated considerable interest and a range of ...


Swift, MJIzac, AMNNoordwijk, Meine van[Biodiversity and ecosystem services in agricultural landscapes - are we asking the right questions?]Biodiversity and ecosystem services in agricultural landscapes - are we asking the right questions?

This paper seeks to establish the concept that the analysis of high temporal resolution meteorological data adds value to the investigation of the effect of climatic variability on the prevalence and severity of agricultural pests and diseases. Specifically we attempt to improve disease potential...


Farrow, AndrewMusoni, DCook, Simon E.Buruchara, Robin A.[Assessing the risk of root rots in common beans in east Africa using simulated, estimated and observed daily rainfall data]Assessing the risk of root rots in common beans in east Africa using simulated, estimated and observed daily rainfall data
Autor: Grof, B

The yield attributes of 18 accessions of Centrosema, comprising the species, C. macrocarpum, C. brasilianum, Centrosema sp. nov. were compared in two experiments under a cutting regime. Small, grazed swards of various Centrosema spp. sown with Andropogon gayanus in mixture were also studied, with...


Grof, B[Forage potential of some Centrosema species in the Llanos Orientales of Colombia]Forage potential of some Centrosema species in the Llanos Orientales of Colombia
Autor: Grof, B

Agronomic assessment of 76 accessions of tropical fine stem stylo or "tardio" (Stylosanthes guianensis Sw. var. guianensis) was carried out at the Carimagua Research Station in the eastern plains region of Colombia. Of 27 accessions tested for dry matter yield, CIAT 10136 was the highest yielder ...


Grof, B[Preliminary studies on the performance of accessions of tropical fine stem stylo (Stylosanthes guianensis sw. var. guianensis) in the eastern plains of Colombia]Preliminary studies on the performance of accessions of tropical fine stem stylo (Stylosanthes guianensis sw. var. guianensis) in the eastern plains of Colombia

The seed yields and limitations to seed production for four tropical grass cultivars were defined via a replicated field experiment conducted over three years at the Cerrados Agricultural Research Centre near Brasilia (latitude 15° 36' S; longitude 47° 42' W) in a tropical savanna region. The fou...


Andrade, Ronaldo P. deThomas, D.Ferguson, John E.[Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses]Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses

The work assessed the relative importance of production and consumption attributes of different wealth groups of households and tested the effect of attribute preference and that of other factors on common bean variety demand in the drought areas of Eastern Kenya. Variety demand was conceptualize...


Katungi, ESperling, L.Karanja, D.Farrow, AndrewBeebe, Stephen E.[Relative importance of common bean attributes and variety demand in the drought areas of Kenya]Relative importance of common bean attributes and variety demand in the drought areas of Kenya

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