The effect of potting mix and phosphate fertilization on the production of rooted cocoa tree cuttings was evaluated and recommended rates and critical foliar P levels were determined based on a factorial 5 x 5 + 1 experiment: five potting medium (coconut fiber CF and Plantmax® mix), five P rates at planting (0 to 800 mg dm-3) and an additional P treatment (applied on the 30th day). Each plot contained 27 cuttings, of which 12 rooted cuttings were evaluated. From […]

Nitrogen is the mineral nutrient required most by plants. There are, however, no studies on N fertilization calibration for rooted cocoa tree cutting production on substrate and frequent irrigation. The objective of this study was to compare the efficiency of urea fertilization on substrate and leaves for rooted cocoa tree cutting and to define N recommendable doses and foliar critical N level. The experiment was set up in a rooted cutting breeding nursery of the Cocoa Biofactory Institute, in Ilheus, […]