**2. Materials and Methods**

Soil biomass productivity evaluation must be based on biomass data and the assessment of the environmental and management factors influencing it. This requires biomass data, and geographical and management data, including soil, topography, climate and fertilizer data. Country-wide implementation of the agricultural biomass productivity model can only be based on information that is available for the full agricultural area of the country. To ensure the best possible spatial detail to develop and implement a new productivity model, data of dependent variables (measured yield and remotely sensed

biomass indicators) as well as independent variables on soil properties were collected at parcel scale and implemented at soil property maps of 100 m resolution.
