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Now showing items 3191-3200 of 3594
Impact of agro-forestry systems on the aroma generation of coffee beans
(Frontiers, 2022)
A long experiment has been established since 2000 at CATIE (Tropical Agricultural Research and Higher Education Center), Turrialba, Costa Rica. Twenty agro-forestry systems with different shade types and managements (organic ...
Contribución al estudio del fósforo en suelos ácidos del noroeste de España. II. Relaciones entre valores representativos del P del suelo, obtenidos por incubación o agitación con solución 0.01 M de CaCl subíndice 2, y su absorción por trébol violeta
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-10)
P- adsorption uptake by red clover grown in an acid brown soil heavily fertilized 6 years before sampling, was correlated with soil P estimated after the procedure followed to obtain their adsorption isotherm, with the ...
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 ...
Uso de la isoterma de adsorción para evaluar requerimientos de fósforo, 3: Comparación con otros métodos.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-10)
A comparison of the yield of Vigna unguiculata L. var. Tuy (Frijol bayo) as predicted by a traditional extraction method (Mendell reagent) and two methods which make use of the sorption characteristics of the soils are ...
Evaluación del fruto del caulote (Guazuma ulmifolia, Lam) en la alimentación de terneros.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-10)
In order to evaluate caulote fruit (Guazuma ulmifolia, Lam) as a feedstuff; Holstein steers were fed corn silage alone and supplemented with a concentrate containing 0, 15, 30 and 45% of caulote flour. Levels up to 30% did ...
Investigaciones sobre el control del barrenador del tallo de la cola (Phosphorus virescens Oliver); (Cerambycidae: coleoptera) en Nigeria Occidental
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1981-07)
Los estudios de campo y laboratorio con inyectores hechos con latas de aceite como aplicadores de insecticida, mostraron que el barrenador del tallo de la Kola (Phosphorus sp ) puede ser controlado con éxito mediante la ...
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 ...
Liberación de protoplastos, reconstitución de la pared celular, proliferación del callo en tejidos de callo de Coffea arabica L.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-04)
Uma metodologia para liberação e cultura de protoplastos de tecidos de café foi definida a fin de permitir a possibilidade de manipulação genética dentro do genero Coffea. Uma combinação de 2,5% Pectinase, 3,5 por cento, ...
Evaluación de los daños causados por el virus dorado del frijol (VMDF)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-04)
Quantitative evaluation of losses caused by golden mosaic virus in beans (BGMV) is very difficult under field conditions due to the difficulty in having plots completely free of the disease for comparison with infected ...
Sistema radical de la caña de azúcar 'V58-4' a los seis y doce meses de edad en un suelo del orden Mollisol del Estado Portuguesa [Venezuela, Saccharum officinarum, raíces]
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-04)
The root system was studied in a sugar cane field, variety V 58-4, twelve and six months after germination. The soil is of the order Mollisol (Aquic Haplustoll) which is representative of the 26 per cent of the flat land ...