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Se presentan los resultados de las actividades de multiplicacion de semilla exptl. y basica de pastos tropicales en las regiones de Pucallpa, Tarapoto y Puerto Maldonado (Peru) durante 1987-88, y se explican los principales factores que impidieron el cumplimiento de los objetivos propuestos. Se e...


Schaus, R.Peralta, A.[Multiplicacion de semilla experimental y basica]Multiplicacion de semilla experimental y basica

Inoculum of the VA mycorrhizal fungusGlomus manihotis was added to an Oxisol containing only a moderate inoculum potential of indigenous VA mycorrhizal fungi. Its effect on growth and P uptake of two pasture plant species was investigated in pot experiments. This effect was studied at a range of ...


Salinas, JGSanz Scovino, José IgnacioSieverding, E[Importance of VA mycorrhizae for phosphorus supply to pasture plants in tropical Oxisols]Importance of VA mycorrhizae for phosphorus supply to pasture plants in tropical Oxisols

Established swards of the tropical forage grass Andropogon gayanus var. bis-quamulatus (Hochst.) Hack were heavily colonized by the leaf-cutter Acromyrmex landolti Forel over a period of 33 months in the eastern plains of Colombia. Density of Ac. landolti colonies in swards of A. gayanus increase...


Lapointe, Stephen L.Serrano, MSVillegas, A[Colonization of two tropical forage grasses by Acromyrmex landolti (Hymenoptera: Formicidae) in Eastern Colombia]Colonization of two tropical forage grasses by Acromyrmex landolti (Hymenoptera: Formicidae) in Eastern Colombia
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
Lourenco, A.J.Lascano, Carlos E.[Efeito do pastejo sequencial na composicao botanica da forragem disponivel e da dieta selecionada por bovinos em pastos de Andropogon gayanus Kunth consorciado]Efeito do pastejo sequencial na composicao botanica da forragem disponivel e da dieta selecionada por bovinos em pastos de Andropogon gayanus Kunth consorciado
Ferrufino C., A.[Caracterizacion de la resistencia de Brachiaria spp. al salivazo de los pastos Zulia Colombiana (Lallemand) (Homoptera:Cercopidae). Tesis (M.Sc.)]Caracterizacion de la resistencia de Brachiaria spp. al salivazo de los pastos Zulia Colombiana (Lallemand) (Homoptera:Cercopidae). Tesis (M.Sc.)
Suarez-Vasquez, SenenMachado, L.F.Pizarro, Esteban A.[Seleccion de gramineas y leguminosas forrajeras en la zona cafetera de Supia, Colombia]Seleccion de gramineas y leguminosas forrajeras en la zona cafetera de Supia, Colombia

The possible use of tropical forage legumes in pastures based on Brachiaria decumbens and Andropogon gayanus pastures was tested on farms in the humid tropics region of Pucallpa, Perú. The pastures were established by farmers using manual labour. They were associated with maize in some cases and ...


Reategui del Aguila, KVera, Raúl R.Loker, WMVásquez, M.[On farm grass-legume pasture performance in the Peruvian rainforest]On farm grass-legume pasture performance in the Peruvian rainforest

A survey of three regions of Colombia revealed a total of 31 species of plant-parasitic nematodes associated with tropical pasture legumes and grasses. Seventeen of these nematode species had not been recorded previously in Colombia. There also are 120 newly reported associations of plant-parasit...


Stanton, J.M.Siddiqi, MRLenne, J.M.[Plant-parasitic nematodes associated with tropical pastures in Colombia]Plant-parasitic nematodes associated with tropical pastures in Colombia

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