Modifiable constraints might be mitigated, for example, with the usage of included nutrients or fertilizer. Unmodifiable constraints are constraints which relate more on the ecosystem, such as, significant erosion hazard, which can not be very easily modified or altered. The classification on the FCC constraints can be referred to in https://agricultural-commodities09471.uzblog.net/the-basic-principles-of-ag-commodity-prices-today-48920104