Development of a novel mechatronic system for mechanical weed ...

Results and discussion
As a final check the obtained data set can be limited to the intra-row area,
taking into consideration that inter-row systems leave an approximately 100 mm
wide non-cultivated strip around the crop row. The estimation of the hoeing
quality using the same methodology as described, only limited to the 100 mm
transversal area around the plant centre position is shown in Figure 5.28.
x [mm]
80
60
40
20
0
-20
-40
-60
-80
+
dp=54 mm
-60 -40 -20 0 20 40 60
z relative [mm]
Distance from the plant centre position [mm]
80
70
60
50
40
30
20
10
0
+
-60 -40 -20 0 20 40 60
z relative [mm]
Figure 5.28 Estimation of the hoeing quality attained during the
experiment with constant speed limited to the 100 mm
transversal area around the plant centre position: a)
distribution of the cuts under the soil surface transformed
to a relative distance from the plant centre position (�)
for duckfoot number 3 (�) and duckfoot number 1 (�);
b) mean distances of duckfoot number 3 (�) and
duckfoot number 1 (�) in relation to the plant centre
position (�)
Analysing the graph b) from Figure 5.28 it can be observed that all the cuts
made by duckfoot knife 3 are roughly distanced in the range from 25 to 65 mm
and the cuts made by duckfoot knife 1 in the range from 55 to 80 mm from the
plant centre position. The distribution of the total number of cuts based on their
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