Smallholders with dual-purpose cattle production systems in most Central America experience a shortage of forages during the dry season (4-8 month. As a result, substantially lower milk production and weight gain occurs. Dual-purpose operations seeking to maximize milk and beef production in the ...
Schoonhoven, Aart van
,
Holmann, Federico J.
,
Argel M., Pedro J.
,
Pérez, E.
,
Ordoñez, Jenny C.
,
Chaves, J.
,
[Estimation and comparison of benefits due to feeding hay and silage during the dry season on commercial dual-purpose cattle production systems in Honduras and Costa Rica.]
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Estimation and comparison of benefits due to feeding hay and silage during the dry season on commercial dual-purpose cattle production systems in Honduras and Costa Rica.
Schoonhoven, Aart van
,
Holmann, Federico J.
,
Argel M., Pedro J.
,
Pérez, E.
,
Ordóñez, JV
,
Chaves, J.
,
[Costos y beneficios del suministro de heno y ensilaje durante la época seca en Honduras y Costa Rica]
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Costos y beneficios del suministro de heno y ensilaje durante la época seca en Honduras y Costa Rica
La composición y variación de la riqueza del complejo de larvas Melolonthidae se examinó en cuatro circunstancias agroecológicas en los municipios de Caldono y Buenos Aires, Cauca (1400 a 1500 m.s.n.m, 21,5ºC. y 2000 mm/año de precipitación promedio). Quincenalmente, durante un año, se visitaron ...
Pardo Locarno, LC
,
Montoya Lerma, J
,
Schoonhoven, Aart van
,
Moron, MA
,
[Riqueza del complejo chisa (Coleoptera: Melolonthidae) en cuatro agroecosistemas del Cauca, Colombia]
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Riqueza del complejo chisa (Coleoptera: Melolonthidae) en cuatro agroecosistemas del Cauca, Colombia
Smallholders with dual-purpose cattle production systems in most Central America experience a shortage of forages during the dry season (4-8 month. As a result, substantially lower milk production and weight gain occurs. Dual-purpose operations seeking to maximize milk and beef production in the ...
Schoonhoven, Aart van
,
Holmann, Federico J.
,
Argel M., Pedro J.
,
Pérez, E.
,
Ordoñez, J.C.
,
Chaves, J.
,
[Estimation and comparison of benefits due to feeding hay and silage during the dry season on commercial dual-purpose cattle production systems in Honduras and Costa Rica]
,
Estimation and comparison of benefits due to feeding hay and silage during the dry season on commercial dual-purpose cattle production systems in Honduras and Costa Rica
Al examinar la composición y variación de la abundancia del problema de plagas subterráneas tipo chisa (larvas de Coleóptera Melolonthidae) en Caldono y Buenos Aires, dos localidades agrícolas del departamento del Cauca (altitud: 1.400 a 1.500 msnm; T°: 21,5°C (promedio); precipitación: 2.192 mm/...
Pardo Locarno, LC
,
Montoya Lerma, J
,
Schoonhoven, Aart van
,
[Abundancia de chisas rizófagas (Coleoptera: Melolonthidae) en agroecosistemas de Caldono y Buenos Aires, Cauca, Colombia = Abundance of whitegrubs (Coleoptera: Melolonthidae) in two Colombian agroecosystems]
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Abundancia de chisas rizófagas (Coleoptera: Melolonthidae) en agroecosistemas de Caldono y Buenos Aires, Cauca, Colombia = Abundance of whitegrubs (Coleoptera: Melolonthidae) in two Colombian agroecosystems
An expt. to study the background soil effects associated with var. resistance in bean pest populations, virus incidence and yield was carried out at the Centro Internacional de Agricultura Tropical (CIAT), Palmira, Colombia from Jan.-March, 1978. The effect of the treatments and of the var. on Em...
Hohmann, C.L.
,
Schoonhoven, Aart van
,
Cardona, C.
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[Manejo de pragas do feijoeiro (Phaseolus vulgaris, Linnaeus, 17S3) atraves da utilizacao de cobertura de solo associada a resistwncia varietal]
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Manejo de pragas do feijoeiro (Phaseolus vulgaris, Linnaeus, 17S3) atraves da utilizacao de cobertura de solo associada a resistwncia varietal
Ospina O., Héctor Fabio
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Cardona Mejía, César
,
Schoonhoven, Aart van
,
García, J.E.
,
[El Lorito verde (Empoasca kraemeri Ross y Moore) y su control : Guía de estudio]
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El Lorito verde (Empoasca kraemeri Ross y Moore) y su control : Guía de estudio
Schoonhoven, Aart van
,
Pastor Corrales, Marcial A.
,
[Sistema estándar para la evaluación de germoplasma de frijol]
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Sistema estándar para la evaluación de germoplasma de frijol
The effect of maize/bean intercropping on Empoasca kraemeri population and damage, populations of other phytophagous insects, the parasitic action of Anagrus sp. on E. kraemeri, ambient temp. and RH, light intensity, and bean leaf temp. was observed. Two planting dates and 3 maize densities in 2 ...
Hernández R., J.C.
,
Vera G., J.
,
Schoonhoven, Aart van
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Cardona Mejía, César
,
[Efecto de la asociacion maiz-frijol sobre poblaciones de insectos plagas, con enfasis en Empoasca kraemeri Ross & Moore]
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Efecto de la asociacion maiz-frijol sobre poblaciones de insectos plagas, con enfasis en Empoasca kraemeri Ross & Moore
A standard system for the evaluation of bean germplasm under field conditions is described, including a table with the developmental stages of the common bean plant which is used in the proposed system. This system has been tested in Colombia and many countries in Latin America, Africa, and other...
Schoonhoven, Aart van
,
Pastor Corrales, Marcial A.
,
[Sistema estándar para la evaluación de germoplasma de frijol]
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Sistema estándar para la evaluación de germoplasma de frijol