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Construction and function of the sprayer boom
112
UF02 BAG00225.3 09.22
6.11
Special optional equipment for liquid fertiliser
There are currently two main types of liquid fertiliser available:
●
Ammonium nitrate / urea solution (AUS) with 28 kg N per 100 kg
AUS.
●
An NP solution 10-34-0 with 10 kg N and 34 kg P
2
O
5
per 100 kg
NP solution.
If the liquid fertiliser is sprayed using flat-fan nozzles, multiply the cor-
responding values from the spray table for the spray rate (l/ha) by
0.88 for AUS and by 0.85 for NP solutions, as the spray rates listed
(in l/ha) only apply for water.
As a rule:
Use coarse-dropped application for liquid fertiliser to avoid chemical
burns to the plants. Overly large drops roll off the leaf and drops
which are too small cause a magnifying glass effect, which burns the
leaves. Too much fertiliser may cause burns to appear on the leaves
due to the salt concentration in the fertiliser.
As a rule, do not spray more liquid fertiliser than, for example, 40 kg N
(see also "Conversion table for spraying liquid fertiliser"). Always dis-
continue nozzle-based AUS fertilisation at development stage EC-39,
because chemical burns to on ears have a particularly bad effect.
6.11.1 Three-ray
nozzles
The use of three-ray nozzles for applying liquid fertiliser is beneficial if
the liquid fertiliser needs to be taken up more by the roots of the plant
than through the leaves.
Thanks to its three openings, the dosing aperture, which is integrated
into the nozzle, ensures a coarse-dropped, almost depressurised dis-
tribution of the liquid fertiliser. This prevents an undesirable spray mist
and the formation of smaller drops. The coarse drops produced by the
three-ray nozzle hit the plants with little force and roll off their surface.
Although this avoids damage from burns to the greatest extent
possible, avoid the use of three-ray nozzles for late top dressing
and use drag hoses.
For all three-ray nozzles listed in the following, only use the black bay-
onet nut.
Different three-ray nozzles and their operational areas
(at 8 km/h)
three-ray, yellow 50 - 80 l AUS/ha
three-ray, red
80 - 126 l AUS/ha
three-ray, blue
115 - 180 l AUS/ha
three-ray, white
155 - 267 l AUS/ha
Содержание UF 1002
Страница 20: ...General safety instructions 20 UF02 BAG00225 3 09 22 Super S boom...
Страница 21: ...General safety instructions UF02 BAG00225 3 09 22 21 Q Plus boom...
Страница 217: ...Liquid circuit UF02 BAG00225 3 09 22 217 Part width section control...
Страница 218: ...Liquid circuit 218 UF02 BAG00225 3 09 22 Single nozzle control Flushing water pump...
Страница 219: ...Liquid circuit UF02 BAG00225 3 09 22 219 Single nozzle control FlowControl...
Страница 223: ...Spray table UF02 BAG00225 3 09 22 223...
Страница 232: ......