Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

Based on a windrowing device of a mower conditioner tests were carried out for developing a yield monitoring system for grass. The torque requirement of the wind rowing device and the pressure drop at the hydraulic motor which drives the windrowing device were employed for determining the masses of grass. Under laboratory conditions both methods achieved a high accuracy. In the field the deviations from the actual grass mass were higher.