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Incidencia de Azospirillum en algunas gramíneas del tropico subhúmedo cálido de México
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
Number and identification of Azospirillum species were determined in the rhizosphere and roots of maize in 3 different biasses (l anicum maximum, Hyparremia tufa and Cynodon dactylon) collected in the field We observed ...
Helmintos parásitos de la ganadería de Jamaica
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
The paper gives a list of helminths found in horses, cattle, goats and pigs in Jamaica. Reference was made to records of single multiple infections stemming from imported animals.
Anillos anuales de crecimiento en cafetos (Coffea arabica L.) y sus usos potenciales
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
Annual growth rings are reported for coffee trees growing in the Coatepec region of Veracruz, Mexico. Ring structure and formation are briefly discussed and the potential use of growth rings in coffee are highlighted.
Resíduos, degradación y persistencia del fungicida maneb en patatas, en Costa Rica
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
Residues of the fungicide maneb (manganese-1,2-ethylen-bisdithiocarbamate) were analyzed by the carbondisulfide evolution method in samples of potatoes, potato leaves and soil from a commercial crop located in Llano Grande ...
Fertilización potásica de papa (Solanum tuberosum L.) en cultivo bajo riego
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
The objective of this research was to study the effect of potassium fertilization on potato.
During October 1979 — March 1980 measurements of yield, tuber quality and starch content were made in a field experiment on ...
Determinación del potencial agroclimático para la producción de caña de azúcar (Saccharum officinarum L.) en Costa Rica
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
The agroclimatic potential of sugar cane is defined by estimating a production function for dry matter, performing a rainfall frequential analysis, and calculating a climatic ripening index. This requires the use of data ...