ABSTRACT
A similar approach as the one described above was reported by Ezui et al. (2016) for validating the QUEFTS model for cassava in West Africa by calculating the N, P and K application rates for a balanced nutrition. Using the calibrated QUEFTS model, the amount of N, P and K required for obtaining a target yield under balanced nutrition can be calculated, and its use will optimize the nutrient use efficiency within the plant, resulting in higher yields at lower fertilizer application rates, thus lowering the cost of fertilizers, increasing farmers’ income and preventing nutrient loss to the environment, which may cause pollution.
