Corrección De La Deficiencia Crónica De Zinc en Aguacate ‘Hass’

Efecto a corto plazo de la fertilización de sitio específico en mangos ‘Kent’ y ‘Tommy Atkins’ cultivados sin riego

“…Unlike the above studies, results from our research come from rainfed orchards, where over 80% annual rainfall occurs from July to September, after which soil moisture declines, limiting nutrients access to the root, and also root growth (Salazar- García et al, 1993). Changes in foliar nutrient concentration in rainfed 'Hass' avocado have also been found until several years later (Salazar- García et al, 2008;Cossio-Vargas et al, 2009;Salazar-García et al, 2009). …”

“…A diferencia de los estudios mencionados los resultados de la presente investigación corresponden a huertos sin riego, en donde más de 80% de la lluvia anual ocurre de julio a septiembre; posteriormente, la humedad del suelo declina limitando no sólo el acceso de nutrientes a la raíz, sino el mismo crecimiento de la raíz (Salazar-García et al, 1993). Los cambios en la concentración nutrimental foliar en aguacate 'Hass' sin riego también han sido encontrados hasta después de varios años (Salazar-García et al, 2008;Salazar-García et al, 2009).…”

“…The lack of quick response to fertilization, judged by nutrients foliar concentrations, appears to be common in woody fruit trees. After soil fertilization with Zn or B in 'Hass' avocado (Salazar- García et al, 2008;Cossio-Vargas et al, 2009), changes were found in foliar concentrations of these nutrients, three and four years after starting the annual application. The above authors suggested that this response could be due to the acute deficiency in the trees and therefore nutrients may have been translocated to demand sites (flowers, fruits and shoots) and reservoir sites (branches, trunk and roots).…”

Site-specific fertilization approach increased productivity of rainfed ‘Ataúlfo’ mango

“…The highest concentrations of N, Mg, and Fe were recorded in 2011, a year after the start of the study, but for 2012, concentrations of K, S, Cu, Mn, Zn, and B were higher than those of 2011. In 2013, P concentrations were higher than in 2011 and 2012, and the Mn concentration showed no differences compared to 2012 but was higher than in 2011 (Table 3) fertilization (Salazar- García et al, 2008;Cossio-Vargas et al, 2009 1 ;Salazar-García et al, 2009). Fertilization treatments did not change leaf concentrations of N, P, K, Ca, S, Cu, Mn and Zn (Table 3).…”

Accumulation of nutrients during the development of ‘Méndez’ avocado fruit

“…Since the mesocarp is the edible part of the avocado fruit, its quality at consumption maturity usually identif ies whether adequate orchard nutrition management was carried out. As the mesocarp reflects the response to fertilization more quickly than the leaves (Salazar-García et al, 2008 and, opportune modif ications can be made to the fertilization program by monitoring its nutrient status (Salazar-García et al, 2014).…”