Exportation of nutrients by fruit of ‘Gala’ and ‘Fuji’ apple in orchards with different productivity and regions

Abstract

The objective of this work was to quantify the nutrients exported by apple fruits harvested in orchards with different productivities and regions. From the mineral content of N, P, Ca, K and Mg determined in flesh of fruits harvested in the 2017/2018 growing season in ‘Gala’ and ‘Fuji’ cultivars in the regions of São Joaquim (SC) and Fraiburgo (SC), it was estimated the export of nutrients in orchards with yields of 10 to 80t ha-1. All the mineral contents analysed in the two cultivars and in the two regions remained within the adequate values for the two producer regions. The results show that the export difference between the cultivars is not very expressive, as well as the differences between regions, and it is possible to adopt average values for the cultivars and regions.