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Sustainability

                          Mainly, sunlight is required for                           Cafeology
                   Growing coffee
                         photosynthesis and photosynthesis is
                         one requirement for the coffee trees to                       Roberto’s trees last for
                         grow and produce fruit. This explains                       approximately 30 years
                         why no shade plantations produce                            after their first prune, if
                         higher yields but no shade harms the                        the tree is sufficiently
                         trees because there is such a thing as                      looked after. Once a tree
                         too much sun. Coffee trees grown in                         has reached the end of its
                         the shade might produce lower yields                        life, it is pruned at the
                         but the coffee tastes nicer and the                         base (killed) and then
                         trees live longer lives
                                                                                     seeds are planted where
                           When you plant a coffee tree it will                      the old tree was. Sufficient
                         take 3-4 years before the tree produces                     shade is one part of the
                         fruit, and reaches peak maturity on                         puzzle that helps
                         year 5. Then every 7-8 years (or sooner                     Roberto’s trees live long
                         if the tree looks tired) they are pruned                    lives, require less pruning,
                         low down. Pruning is important                              and produce higher-
                         because when a coffee tree flowers,                         quality coffee.
                         that flower will only bloom once and
                         therefore only produce fruit once.                            Fertile soil is critical in all

                         When picked clean of fruit, a branch will                   agriculture and coffee is
                         never grow cherries again. So pruning                       no different. Keeping soil
                         is crucial to allow trees more room to                      optimally fertile is difficult
                         produce new branches (else you would                        and has major
                         have tall trees, empty of fruit except for                  consequences if there are
                         where it is too high to pick!)                              too many or too few
                                                                                     nutrients in your soil. A
                                                                                     large part of what makes
                                                                                     the soil fertile is available
                                                                                     Nitrogen (i.e. Nitrogen in
                                                                                     specific molecules that are
                                                                                     available for plants to
                                                                                     absorb and use) because
                                                                                     Nitrogen is vital for life via
                                                                                     protein synthesis and
                                                                                     therefore plant growth.

                                                                                       Nutrient rich trees are
                                                                                     stronger and produce
                                                                                     better tasting coffee.
                                                                                     Inorganic fertiliser is used   MAY/JUNE. 2024 | ISSUE 36
                                                                                     by most farmers
                                                                                     worldwide to make sure
                         Juvenile plants which are a rust                            their land is optimal for
                         resistant variety                                           growth.





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