Method for controlling a driving condition for a tractor of an agricultural machine having - a tractor ; - an implement for applying a material selected from the group of a granular material, a liquid material, and a powder-form material, the implement being carried or trailed by the tractor and comprising - a supply container for receiving the material; - an application device for applying the material; and - a weight sensor device having at least one weight sensor configured to sense an empty weight and a filling weight for the supply container ; and - a tractor implement management system , the tractor implement management system operationally connected to the weight sensor device and configured to generate control signals for controlling driving conditions of the tractor ; the method comprising - moving the agricultural machine by tractor driving; the method characterized by the steps of: - measuring first weight signals by the weight sensor device , the first weight signals indicative of a first driving condition for the movement of the agricultural machine; - providing first tractor control signals in the tractor implement management system , the first tractor control signals generated in response to the first weight signals and configured to apply a first control condition to the tractor driving; and - applying the first tractor control signals for controlling the tractor driving. - a tractor ; - an implement for applying a material selected from the group of a granular material, a liquid material, and a powder-form material, the implement being carried or trailed by the tractor and comprising - a supply container for receiving the material; - an application device for applying the material; and - a weight sensor device having at least one weight sensor configured to sense an empty weight and a filling weight for the supply container ; and - a supply container for receiving the material; - an application device for applying the material; and - a weight sensor device having at least one weight sensor configured to sense an empty weight and a filling weight for the supply container ; and - a tractor implement management system , the tractor implement management system operationally connected to the weight sensor device and configured to generate control signals for controlling driving conditions of the tractor ; - moving the agricultural machine by tractor driving; the method characterized by the steps of: - measuring first weight signals by the weight sensor device , the first weight signals indicative of a first driving condition for the movement of the agricultural machine; - providing first tractor control signals in the tractor implement management system , the first tractor control signals generated in response to the first weight signals and configured to apply a first control condition to the tractor driving; and - applying the first tractor control signals for controlling the tractor driving. - measuring first weight signals by the weight sensor device , the first weight signals indicative of a first driving condition for the movement of the agricultural machine; - providing first tractor control signals in the tractor implement management system , the first tractor control signals generated in response to the first weight signals and configured to apply a first control condition to the tractor driving; and - applying the first tractor control signals for controlling the tractor driving. <EOS>