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Development and evaluation of an alternative culture medium for mass cultivation of Azospirillum brasilense C16 using sequential statistical designsDesarrollo y evaluación de un medio de cultivo alternativo para la multiplicación de Azospirillum brasilense C16 mediante diseños estadísticos secuenciados
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2013)
For mass plant growth-promoting inoculant production, a high-yield culture medium is fundamental. Sequential application of statistical designs was used to optimize Azospirillum brasilense C16 biomass production. Six nutritional (glycerol, glutamate, mannitol, citric acid, yeast extract and K2HPO4 3H2O) and three mineral sources (MgSO4 7H2O, FeCl3 and NaCl) were evaluated using five statistical experiments Placket-Burman, ...
Effect of nitrogen fertilization on nitrous oxide and methane dynamics in Brachiaria humidicola (Rendle) SchweickerdtEfecto de la fertilización nitrogenada en la dinámica del óxido nitroso y metano en Brachiaria humidicola (Rendle) Schweickerdt.
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2011)
Livestock activities cause a significant impact on the environment due to the release of N into the soil, which in turn results in nitrification and the emissions of greenhouse gases (GHG). At Corpoica’s Turipaná Research Center (Cereté, Colombia), we evaluated three different genotypes of B. humidicola (CIAT 16888, CIAT 26159, and CIAT 679) with three levels of nitrogen fertilization application (0, 150, and 300 kg ...
Effect of plant growth-promoting rhizobacteria (PGPR) associated to Pennisetum clandestinum in the altiplano cundiboyacenseEfecto de bacterias promotoras de crecimiento vegetal (PGPR) asociadas a Pennisetum clandestinum en el altiplano cundiboyacense
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2013)
Pennisetum clandestinum (kikuyo) is a common pasture in the altiplano cundiboyacense silvopastoral systems, which possesses high nutritional value. Therefore, studies to improve the production process in both economic and environmental terms are very important. The role of inoculation with plant growthpromoting bacteria was evaluated on the growth of kikuyu grass. The 4K and 5B strains were identified, through amplification ...
Determinants of the adoption of standards in the horticulture subsector of Northwestern MexicoDeterminantes de la adopción de estándares en el subsector hortícola del Noroeste de México.
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2011)
Vegetable production in the northwestern region of Mexico is an important economic activity; this is attributed to natural factors such as climate, soil quality, and proximity to the U.S. market. Clearly, the creation of competitive advantages gained by product differentiation, while maintaining quality, is extremely important and can be achieved through the application of standards. The adoption of standards is ...
Molecular characterization of Bradyrhizobium japonicum J-01, J-96 and J-98, rep-PCR using protocolsCaracterización molecular de las cepas de Bradyrhizobium japonicum J-01, J-96 y J-98, mediante protocolos rep-PCR
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2013)
The cultivation of soybeans (Glycine max (L.) Merril), in oxisols of the Colombian Orinoco has restrictions due to high aluminum saturation and generally low CEC and OM, which affect the biological fixation of N and the normal growth of plants. In response to this problem, the plants are inoculated with different strains of Bradyrhizobium japonicum. The B. japonicum strains J-96 and J-98 are a highly effective choice ...
Alternate bearing and phenology of ‘Valencia’ orange (Citrus sinensis [L.] Osbeck) in the lowland wet tropics of ColombiaAlternancia de la producción y comportamiento fenológico de la naranja ‘Valencia’ (Citrus sinensis [L.] Osbeck) en el trópico bajo húmedo de Colombia
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2013)
In tropical conditions near the equatorial, precipitation is the main climatic factor that influences the growth and development of citrus plants. In a ‘Valencia’ orange orchard planted with 11-year-old trees located in the higher portion of the foothills of Corpoica, La Libertad Research Center in Villavicencio, Meta, Colombia, we recorded tree production data between the years 2008-2010. Information on the phenology ...