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72
30
25
20
15
10
5
0
5
10
15
20
25
30
26
24
22
20
18
16
14
12
10
8
6
4
2
0
30
25
20
15
10
5
0
-5
-10
-15
-20
-25
-30
45
40
35
30
25
20
15
10
5
0
7,5%
30
25
20
15
10
5
0
-5
-10
-15
-20
-25
-30
45
40
35
30
25
20
15
10
5
0
Very good
G
ood
Acceptable
Not acceptable
Tilt angle: +4
Tilt angle: +0
Tilt angle: +2
Tilt angle too high
To ensure the correct spread pattern decrease the tilt angle in steps of -2º
To ensure the correct spread pattern increase the tilt angle in steps of +2º
Tilt angle too low
Optimum spread pattern
The shape of the curve shows the overlap between the
tram lines is too big.
The shape of the curve shows the overlap between the
tram lines is too small.
A triangular shaped curve ensures
a full and correct overlap.
Metres
Spread pattern including overlap
Spread pattern including overlap
Spread pattern including overlap
Metres
C
oefficient of variation: 7,5%
*
C
oefficient of variation: 9%
*
C
oefficient of variation: 4,1%
*
Test tray collection
Test tray collection
Test tray collection
Metres
Metres
Metres
Metres
Metres
Metres
Metres
Normal spreading
Example of how the tilt angle can optimize the spread pattern.
Working width
24 metres
Amount
250 kg/ha
C
oefficient of variation: International standard
Coefficient of variation
The coefficient of variation is an expression of the spreaders ability to distribute the fertiliser even.
*
Optimize spreading
Содержание L15 base
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Страница 96: ...FIND MORE INFORMATION ON www bogballe com 0423 GB 11 19 V01 ...