Fig 5. The random forest relative variable importance plot using the whole dataset based on the Gini criterion.

Farm size, agro-ecological region, seed type, legume crop, socio-economic status class, land ownership, ethnic origin, topography, irrigation constraint, severity of soil problem, organic manure, seed rate, and total labor are denoted as Farm, AE, Seed, Legu, SES, land, Ethnic, Topo, Irrigation, Severity, Organic, SRate, and Labor, respectively.