Autumn 2023 EN

BIOGAS JOURNAL | AUTUMN_2023
ENGLISH ISSUE
Western France, and has operated a branch in Hannover
since 2022, demonstrated the no-till farming
method of catch crops in cereal and rapeseed stubble
in Kleindemsin.
In the no-till farming process referred to by the manufacturer
as T-SlotPlus, a vertically positioned toothed
disc cuts into the soil surface. Positioned closely on
both sides of the 575 mm cutting disc are the seed
openers, known as blades. These blades are angled outward
at 90 degrees at their ends, forming an inverted
“T” shape. The seed or fertilizer is placed separately on
both sides of the cutting disc through the angled ends
of the seed openers, which move horizontally in the soil
at the set depth.
This allows, for example, approximately 90% of the surface
straw to remain undisturbed when sowing catch
crops in cereal stubble, even at high driving speeds.
The two V-shaped press wheels immediately behind the
discs close the horizontal slot of the angled seed openers.
In addition, the press wheels house the sensors for
the “IntelliForcePlus” depth control system developed
by Novag, which is integrated as a standard feature. The
sensors measure the force required to close the seed slot
and transmit the values to the software on the 7-inch
monitor for operating the seeder in the tractor cabin.
Based on this information, the system calculates the
necessary pressure for each individual T-SlotPlus opener
to maintain the set seed placement depth (e.g., 3 cm
for winter wheat) and generates this pressure through
hydraulic cylinders on the parallelograms of the seed
units. Each seed opener can exert a pressure of up to
500 kg with a vertical stroke of 450 mm. According to
Novag, the automatic depth control of the individual
openers ensures a consistent sowing depth even in
compacted and varying soil types.
The farm has been using fixed lanes for three years both for nutrient
applications and for crop protection in the crops using a sprayer with a
working width of 30 m.
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