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Fertilización foliar del frijol común (Phaseolus vulgaris L.): I. El efecto del tiempo de aplicación de nitrógeno
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-10)
To study the effects of foliar fertilization with nitrogen in different stages of plant growth, two field experiments were set out in a sandy loam soil. The first experiment was conducted during the wet season and the ...
Fertilización foliar del frijol común (Phaseolus vulgaris L.): II. Efecto de la aplicación foliar del nitrógeno con y sin aplicación de nitrógeno al suelo
In two field experiments, the effects of nitrogen fertilizers applied in the soil and/or on the leaves on bean production were studied. The first experiment was conducted during the wet season and the second during the dry ...
Influencia de sustancias orgánicas en la persistencia del carbaril en suelos
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-10)
La degradación del carbaril, evaluada por la técnica de centelleo liquido fue estudiada en dos tipos de suelos tratados con diferentes fuentes de nutrimentos orgánicos.
Los resultados obtenidos muestran que después de 2 ...
Peso y contenido de aceite de las semillas de higuerilla (Ricinus communis L.): Efecto de la posición en el racimo
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-10)
The seed weight and oil content of the castorbean cultivar Guarani and the introduction IPP, were evaluated at the top, middle and lower parts of the raceme. The evaluations were done in order to verify differences along ...
Efectos de N, P y K en el contenido y producción de proteína en el sorgo para grano (Sorghum bicolor) en solución nutritiva
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-04)
Effects of N, P and K on protein contents and protein production of grain sorghum.
The experiment was designed to study the effects of nitrogen, phosphorus and potassium defficiences on protein contents of 5 grain sorghum ...
Medidas simultáneas del potencial de agua tanto en el suelo como en las hojas y raíces de plantas de maíz (Zea mays L.)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-10)
Experiments were undertaken using growth chamber grown corn plants (Zea mays, L. ) hybrid "United 108," to characterize the relative magnitude of the water-potential in the soil and within the plant. Root water potential ...
Balance de energía en soya (Glycine max L. Merr)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-10)
The energy balance method was used to estimate the partitioning of the avariable net radiation on a soybean crop. Results of the distribution of the net radiation into the various components of the energy balance ...
Evaluación de la actividad de enzimas del grupo de las fenoloxidasas en pulpa del camote (Ipomoea batatas)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-04)
For the purpose of evaluating the enzymatic action of the phenol oxidase and polyphenol groups in sweet potato pulp, a suitable method was sought which would not involve very complex laboratory techniques. After testing, ...
Maturacao de sementes de sorgo sacarino
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1985-04)
Com o intuito de estudar a maturacao das sementes de 17 cultivares de sorgo sacarino (Sorghum bicolor (L.) Moench), foi conduzido um experimento em condicoes de campo, em um solo Terra Roxa Estruturada distrófica textura ...
Efeito da trifluralina sobre a acumulacao de materia seca, fosforo e potassio pela soja
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1985-10)
Com o objetivo de estudar o afeito da trifluralina sobre o crescimento e absorcao de fosforo e potássio pela soja (Glycine max (L.) Merrill, cv. Paraná), foram conduzidos ensaios em vasos com terra, em dois solos, um ...