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An implementation of the QUEFTS (Quantitative Evaluation of the Native Fertility of Tropical Soils) model. The model (1) estimates native nutrient (N, P, K) supply of soils from a few soil chemical properties; and (2) computes crop yield given that supply, crop parameters, fertilizer application, and crop attainable yield. See Janssen et al. (1990) doi:10.1016/0016-7061(90)90021-Z for the technical details and Sattari et al. (2014) doi:10.1016/j.fcr.2013.12.005 for a recent evaluation and improvements.
| CRAN.R-project.org/package=Rquefts | |
| Bug report | File report |
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