Technology

Fendt and John Deere tractors on our farm: why a farm needs several power classes

How we match tractors to vegetable work in Żuławy: Fendt Vario from 155 to 415 hp, the tracked John Deere 8RX and RTK GPS in every cab. Practice from the field.

Agro-Malz TeamAugust 7, 20265 min read
A Fendt Vario tractor on twin wheels in front of our farm building

On a vegetable farm a tractor rarely does just one thing. The same machine that pulls a cultivator in spring hauls the crop off the field in summer and works the harvest in autumn. That is why we do not have one big tractor for everything, but a fleet from 155 to 415 hp, matched to specific operations across more than 800 hectares. Here we show how we make that choice and why we make it this way.

One power class will not cover the whole season

It is tempting to buy the most powerful tractor and haul everything with it. In practice that is the road to downtime and to ruined soil. A big machine on light work burns fuel for nothing and compacts the field unnecessarily, and on hauling duty it ties up equipment that should be working somewhere else.

OperationWhat it needsWhat we run
Tillage and seedbed preparationhigh power and weight, working a heavy cultivatorFendt 942 and 936 Vario, John Deere 8RX 410
Drilling and crop careprecision, repeatable passes, lower ground pressureFendt 828 and 724 Vario
Hauling the crop off the fieldmanoeuvrability, continuous work in a cycle, lower fuel useFendt 620 Vario, John Deere 6930 Premium
Working the harvestmatching the pace of the harvestertractor and trailer running alongside the harvester

Splitting the jobs up has one more advantage: when the grain harvest or the onion harvest starts, several teams work in parallel. With 87 machines in our machinery fleet, we can move into a narrow weather window on a broad front instead of working through it one set at a time.

Why Vario, or the case for a stepless transmission in vegetables

The Fendts in our fleet have the stepless Vario transmission. In short: there are no gears to shift, speed is set smoothly and the engine holds whatever revs are most economical at that moment.

In vegetables this is not operator comfort, it is a condition for doing the job properly. In planting, drilling and crop care what counts is holding an even, often very low working speed, no matter whether the machine has just hit a heavier patch of the field. A stepped gear change at that moment leaves a mark in the crop: uneven seeding, a gap in the row, uneven depth.

A Fendt tractor with a cultivator preparing a field, with oilseed rape in flower behind
Preparing a field position for vegetables. On heavy alluvial soil both power and an even working pace matter.

The tracked John Deere 8RX, because alluvial soil demands it

We work on Żuławy alluvial soils: ground that is very fertile but heavy and easily compacted. Once soil like that is packed down, water does not drain away, roots do not go deep, and you see it in the yield for seasons afterwards. We write more about this ground in our post on Żuławy alluvial soils.

That is why the heaviest work here is done by a John Deere 8RX 410, a 410 hp tractor on four tracks. Tracks spread the machine's weight over a far larger area than wheels, so pressure per unit of area drops. At the same power we leave less of a mark in the soil, and that matters above all in spring, when the field has not fully dried out yet.

The 2025 season showed how fine that line is. In July we had 150 to 220 litres of water per square metre in a single day, drainage canals overflowed and the soil was compacted. On a field like that every pass has to be thought through, because the effects stay with the crops that follow.

A smaller tractor for hauling off the field

For hauling onions we use, among others, a John Deere 6930 Premium with a Wielton tridem trailer. This is not cutting corners on equipment: in hauling what counts is manoeuvrability on the headlands, a pace matched to the harvester, and not driving a heavier machine around the field than the job needs.

The cycle itself looks like this: the harvester does not stop, it unloads on the move onto a trailer running alongside, the full outfit heads for the store and the next one takes its place. We describe the whole chain in our posts on harvesting potatoes with the AVR Puma 3 and on the onion harvester.

RTK GPS in every cab

We run all our tractors on GPS navigation with RTK correction, which gives accuracy measured in centimetres. This is not a gadget: straight passes mean no overlaps and no misses in drilling, fertilising and crop protection, and in vegetables it also means the crop care machine goes exactly between rows planted a few weeks earlier.

That system is the basis for parallel guidance and John Deere Auto Pilot and for variable rate fertiliser application, which spreads the rate according to what a given zone of the field needs. Where that accuracy comes from, we explain in our post on RTK GPS in precision farming.


Want to see exactly what we work with in the field and in the store? Take a look at our machinery fleet, and for vegetables from these fields write through the contact page.

Frequently asked questions

We run Fendt 942, 936, 828, 724 and 620 Vario, plus a tracked John Deere 8RX 410 and a John Deere 6930 Premium. The fleet covers 155 to 415 hp, and every machine has GPS navigation with RTK correction.

To compact the soil less. Tracks spread the weight over a larger area than wheels, so at the same power the pressure per unit of area is lower. On heavy Żuławy alluvial soils, which pack down easily, that is real protection for soil structure.

Yes. It lets you hold a constant, very low working speed regardless of the resistance the field puts up. In drilling, planting and crop care every stepped change of pace leaves a mark in the crop that stays visible for the rest of the season.

We start with the operation, not the machine. We check what power and what ground pressure a given job calls for, how long the run is and whether the work is continuous, as in hauling, or cyclical. Only then does the tractor class become clear.

Let's talk about delivery

Tell us what you need and by when. We reply with a straight answer, usually the same day.

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Author: Agro-Malz Team

Published: August 7, 2026

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