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Knowledge regarding the behaviour and accumulation of nutrients in coffee berries and leaves is important information for the management of fertilisation. Therefore, this study aimed to evaluate the concentration and accumulation of macronutrients in coffee fruits and leaves under different fertilisation regimes in the south western Amazon, Brazil. The experiment was conducted in of plots subdivided by time: the main plots consisted of two fertilisation regimes (fertilised and unfertilised plants), and evaluation periods were in subplots (leaves: May 2013 to June 2014, fruits: July 2013 to April 2014). The experimental design was of randomised blocks with three replicates. Each experimental plot consisted of 11 plants; two productive plagiotropic branches were marked on each plant. Fruits were sampled every 28 days from the “pinhead” stage (July 2013) to maturation (April 2014). Twenty leaves were concomitantly sampled from each block until June 2014. The berries and leaves were dried in a convection oven and sent for laboratory chemical analysis. It was found that mineral fertilisation affects the concentration and accumulation of nitrogen, phosphorus, potassium, calcium and magnesium in berries and leaves. The concentration of macronutrients at the beginning of fruit formation is high and tends to decrease at later stages. In leaves, lower concentrations occur at the stage when the fruit is small and increase with growth. Most of the accumulation occurs in the expansion, bean formation and maturation stages the fruits.

Concentration and accumulation of macronutrients in leaf of coffee berries in the Amazon, Brazil