Rquefts-package         Quantitative Evaluation of the Native Fertility
                        of Tropical Soils
batch                   Batch QUEFTS model predictions
fertApp                 Optimal fertilizer application
fertilizers             Helper functions to go from fertilizers to
                        nutrients
nutSupply1              Soil nutrients supply for QUEFTS model
optApp                  Compute the optimal fertilizer application for
                        a crop and location.
predict                 Spatial QUEFTS model predictions
quefts                  QUEFTS model
quefts_biom             biomass parameters
quefts_crop             Crop parameters
quefts_fert             fertilizer parameters
quefts_soil             soil parameters
revSupply               Estimate soil nutrients supply
