Evolution of the agreement between the amount of N fertilizer actually applied and the calculated rate, among cooperatives or trading companies aiming at decreasing the differences between the two.
|Objective||Number of cooperatives or companies||% of the total area with differences between N applied and N calculated ranging from −10 to +10 kg N ha−1|
|Amount of N fertilizer = calculated rate ± 10 kg N ha−1||1||55.4||20.3 S|
|Amount of N fertilizer = calculated rate +0 to +10%||1||55.3||56.7 NS|
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