Amount of NPK Fertilizer Needed

In Table 8.9, an overview of the amounts of fertilizer/ash to be used on 1-ha plantations is given for both scenarios. The amount of fertilizer in scenario 2 needed to compensate for the amount of filter ash used in scenario 1 is 1.1 kg/ha for triple superphosphate and 4.1 kg/ha for potassium chloride.

Table 8.8 Overview of the main characteristics of the combustion of 74 kg cacao shells in the

Table 8.9 Overview of the amounts of fertilizer/ash needed for the two scenarios (kg/ha)

Demand Scenario 1

Scenario 2

Added by filter ash

Synthetic fertilizer

Synthetic fertilizer

N

69.5 0

298 kg urea

298 kg urea

P

23.9 0.22

113 kg triple superphosphate

114 kg triple superphosphate

K

63.9 2.05

125 kg potassium chloride

129 kg potassium chloride