Soil patterns and foliar standards for two cocoa clones in the States of Espírito Santo and Bahia, Brazil

Abstract

The objective of this research was to establish soil patterns and foliar standards for clonal crops of cocoa CCN51 and PS1319 in the Atlantic regions within the northern Espírito Santo and southern Bahia States. Samples were collected from September to October 2015, in 45 high productive plots, being 23 plots of clone CCN51 and 22 of clone PS1319. Sufficiency ranges for soil and foliar standards were recommended for cocoa clones CCN51 and PS1319 planted in the Northern Espírito Santo and Southern Bahia states. Differences in the contents of foliar macronutrients K, Ca, Mg, S and micronutrients Fe and Mn, were verified between clones CCN51 and PS1319. Differences reported for standards from different geographical regions confirmed that these standards need to be regional and specific for different cocoa clones.

Indicadores de calidad para posturas microinjertadas de Theobroma cacao inoculadas con hongos micorrízicos arbusculares

“…Estudios realizados en Colombia y Brasil, establecieron como adecuados los rangos para el nitrógeno de 18 -25 g kg -1 y para el fósforo de 1,5 -2,5 g kg -1 , a nivel foliar (Góes de Oliveira et al, 2019;Marrocos et al, 2020;Puentes-Páramo et al, 2016). Estos valores fueron similares a los obtenidos en las posturas de cacao inoculadas con HMA con un sustrato 5:1 con cáscara de cacao o humus de lombriz, lo que sugiere que dichas plantas tienen una adecuada concentración de nutrientes foliares, a partir de los criterios de esos autores.…”

Sistema Integrado de Diagnóstico y Recomendación, su aplicación y utilidad en la agricultura. Una Revisión

“…After the establishment of DRIS norms, DRIS-I, NBI, and mNBI indices are applied to identify deficiencies, excesses, or nutritional balance of macronutrients (N, P, K, Ca, Mg, S) and micronutrients (Fe, Mn, Zn, Cu, Mo, B) in leaf tissue. The results of these studies have been applied mainly in Brazil, in crops of wide commercial interest such as cotton, banana, soybean, potato, cacao, and sugarcane (Araújo et al, 2019;Dos Santos et al, 2019;Oliveira et al, 2019;Pereira et al, 2013;Pereira & Justino, 2021;Rodrigues-Filho et al, 2021), and in other agricultural species, including beans, garlic, carrots, atemoya, and cactus pear (Table I).…”

“…Said analyses are a powerful tool for integrated nutritional diagnosis (Gonzáles, 2017;Franco-Hermida et al, 2017). DRIS has been used successfully in Colombia for rubber trees (Chacón-Pardo et al, 2013a, Chacón-Pardo et al, 2013b, and roses in greenhouses (Franco-Hermida et al, 2017), cacao in Brazil (Oliveira et al, 2019), and banana in India (Raghupathi & Srinivas, 2014).…”