Use e Maintenance ENGLISH
Figure 4.25: Spread check test - Scheme with 7 crates
Figure 4.26: Spread test: results
4.7.10 Calculation of the amount of fer-
tiliser to spread
Below are the formulas needed to find the total fertiliser
flow value (kg/min) exiting the fertiliser spreader based on
the desired spreading dose and vice versa.
Calculation of fertiliser flow (kg/min)
F
T
=
D
L
· W
L
· V
L
600
[kg/min] (4.7)
where:
F
T
: is the total fertiliser flow value (kg/min) exiting the
fertiliser spreader. To know the fertiliser flow exiting only
one adjustment shutter, divide the F
T
value by 2.
D
L
: is the amount of fertiliser you wish to spread ex-
pressed in (kg/ha).
W
L
: is the working width expressed in (m).
V
L
: is the working speed expressed in (km/h).
Calculation of the fertiliser dose (kg/ha)
D
L
=
F
T
· 600
W
L
· V
L
[kg/ha] (4.8)
where:
D
L
: is the amount of fertiliser you wish to spread ex-
pressed in (kg/ha).
F
T
: is the total fertiliser flow value (kg/min) exiting the
fertiliser spreader.
W
L
: is the working width expressed in (m).
V
L
: is the working speed expressed in (km/h).
Cod. F07011577 EN - 35