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Modelo matemático del balance hídrico agroclimático
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-10)
An agroclimatic model which simulates the evolution of the soil water balance under perennial crops is proposed. The model is recurrent, operates with a rime step of one day and utilizes daily rainfall data, potential ...
Evolución estacional de nutrimentos en guindo dulce (Prunus avium L.)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-10)
The variability of foliar N, P, K, Ca, Mg, Mn, Fe, Zn, and B content as a function of time was studied in an irrigated, 18 year old cherry orchard (Prunus avium L.). Samples were taken during two seasons at 1.5 clays ...
Actividad estrogénica de cuatro variedades de trébol (Trifolium sp.) asociados a gramíneas y reconocimiento de isoflavonas en T. repens var. Ladino
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-10)
Estrogen activity in lbw- varieties of clover alone or in association with grasses in the Bogota Savannah in the Andean highlands at an altitude of 2 600 masl was measured by comparing radioactive estradiol by receivers. ...
Aplicación de N y de estiércol en la lechuga (Lactuca sativa L.)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-10)
The objetive of this study was to know the amount and the application form of nitrogen and the levels of poultry manure (P. M) more efficients in the lettuce (Lactuca sativa L. cv Great Lakes, crisp head salad) production ...
Identificación de especies y biotipos de Brucella aisladas en Costa Rica
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-10)
This is the first report of the presence and identification of BruceIla in Costa Rica. BruceIla abortus was isolated from eight bovine aborted fetus and from the blood of one human case. All the bovine isolates belonged ...