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Biannual Journal of Agricultural Sciences of the Ministry of
Agriculture,
the Society of Agronomic Engineer and the University of Costa
Rica. __________________________________________________________________________________
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Volume 01
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September
1977
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Number
02
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CONTENT
Phosphorous-zinc
interactions in potato (Solanum
tuberosum L.) in the Pacayas area.
Bernardo A. Chaverri
and E. Bornemisza.
Methods
of evaluation and levels of resistance in corn to ear rot caused by Fusarium moniliforme. Francisco
Salazar F. and Edgar Vargas G.
Coffee
pulp in the feeding of ruminants. II Absorption and retention of nitrogen in
steers fed coffee pulp concentrates. Emilio Vargas, Marco Tulio Cabezas and Ricardo Bressani.
The
control of foliar diseases of bean (Phaseolus
vulgaris) by limited fungicide applications. Luis C. González, Ricardo Gutiérrez, Félix
Cascante and Enrique Portilla.
Host
response and morphometrics of three populations of Meloidogyne incognita and one of M. javanica. Róger López and
Donald W Díckson.
Comparative
tests of soybean (Glycine max (L)
Merr) cultivars during five planting times in Guanacaste. Rodrigo Alfaro M.
Composition
and use of annatto (Bixa orellana L.) in laying hen diets as
pigmentation of the egg yolk Héctor Araya H., Mario Murillo R.,
Emilio Vargas G. y Jorge Delgado M.
Evaluation
of the reaction to late blight (Phytophthora
infestans) in different potato clones.
Luis Fernando Cartín.
Technical notes
Preliminary
results on chemical weed control in beets (Beta
vulgarís L.). Fabio A . Robles
M.
Development
and control of potato blackleg, caused by Erwinia
caratovora var. atroseptica, in Costa Rica. Jorge G. Herrera y Luis C. González.
Biological
control of the Lantana weed (L. camara) by Octotoma championi and Uroplata
sp. (near bilineata).George Diatloff .
Analysis and comment
Twenty-five years of systematic research on the
coffee crop in Costa Rica: 1950-1975.
Víctor Manuel Pérez S.
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