Evolution of the use of Decision Support Systems (DSS) to calculate the rate of N fertilizer among cooperatives or trading companies aiming at increasing this use.
|Objective of the cooperatives or trading companies
|Number of cooperatives or companies
|% of oilseed rape area conducted with a DSS and with an estimation of the biomass by weighing or remote sensing
|+10 to +30% in the rapeseed area conducted with the use of a nitrogen DSS and with an estimation of the biomass by weighing or remote sensing
|Less than +10% in the rapeseed area conducted with the use of a nitrogen DSS and with an estimation of the biomass by weighing or remote sensing
|The objective is not quantified as a % of increase in the total area
|The objective is not quantified
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