A method for determining the biomass from plant populations and / or the vertical guide is constituted by spraying, in particular, on an agricultural machine systems

摘要

The present invention relates to a method for dispensing of a substance (11), such as a plant protection agent, a pest control and / or by means of a fertilizer, on plants stocks (5) by means of a spraying device (3), which in a mobile support (2) is mounted, and a vertically adjustable spray bar assembly (3), to which a plurality of metering devices (4) for the substance (11) and at least four ultrasonic sensors (9) are fixed, whereby during the passage of the mobile support (2) by means of the ultrasonic sensors (9) cyclically sound pulses in the direction of the stand of the plants (5) and be discharged from the crop and echo reflected from the ground are detected. The method in accordance with the present invention comprises:(a) the cyclic determination of the distance between the ultrasonic sensors (4) and the surface of the stand of the plants (was surface); and adjusting the height of a spray bar assembly (4), if the distance between the ultrasonic sensors (4) and the stock surface (6) deviates from a default value; and, at the same time(b) the cyclic determination of the biomass under generation of a biomass value, which is a measure for the current biomass to a region is, of the ultrasonic sensors (9) is scanned; calculating the amount of the substance (11), which, on the crop (5) of this area is to be discharged, while producing at least one control signal for the metering devices (4) and adjusting the amount of the substance (11) by means of the metering devices (4) on the basis of the or of the control signals.