Open source · Regenerative agriculture · Austria
Understand your field.Decide for yourself.
Cropstar will not tell you which variety to sow, when to fertilise or what to spray. It lays bare what is happening in your field, so you can interpret your own ecosystem. For anyone tired of blindly following decisions others made for them.
Why Cropstar exists
Independence begins with understanding
Almost every decision in the field comes with a recommendation – often from someone with something to sell. That is convenient while the season follows the plan. When it does not, the question of why remains.
A resilient farm is built not on ready-made answers, but on understanding how water, nutrients, plants and soil interact.
What follows from this
What Cropstar deliberately does differently
Open in its development, transparent in its results and free from ready-made judgements.
- 01
Developed openly, shaped together
Open source and independent. Developed by and for people in agriculture.
- 02
No bare numbers
Every value shows its context, uncertainty, provenance and the influences behind it.
- 03
Compare, don't judge
Cropstar shows possibilities and consequences. The decision remains yours.
Interactive illustration
Water and nitrogen in interaction
Highly simplified — not a complete simulation
This illustration focuses solely on how water and nitrogen availability might interact in winter wheat. A real ecosystem simulation would also need to account for temperature, radiation, soil structure, root dynamics, disease and management history, among other factors. The numbers come from a hard-coded response surface; no model runs in the background.
Inputs
Weather and soil
Nutrients
- total N in manure
- 125 kg N/ha
- of it plant-available this season
- 40 kg N/ha
- total plant-available
- 65 kg N/ha
Drawn at BBCH 75 — medium milk. The drawing follows the figures beside it: tiller number from ground cover, colour from nitrogen supply, droop from water supply, rooting depth from the days spent short of water. The pale dots in the soil are plant-available nitrogen.
Grain yield
4.5t/ha
3.7 – 5.2 t/ha
Crude protein
11.2%
10.3 – 12.1 %
Peak ground cover
0.82
0.73 – 0.91
Fraction of soil shaded by the canopy at its peak (fCover).
Plant height
89cm
78 – 99 cm
Days on which plant-available soil moisture sat below 40 % of the usable field capacity.
Days on which the crop would have needed more nitrogen than soil and manure could supply.
Derived from yield and crude protein, using a factor of 5.7.
Balance: 125 kg N/ha + 25 kg N/ha − 88 kg N/ha = 62 kg N/ha.
Get involved
Build together.
Learn together.
We connect observations from practice with soil, weather, crop development, satellite data and models. The result is a tool that helps farmers understand their ecosystem more deeply over time.
It is developed together with farms — and open to further perspectives from farming, advisory services and research.
No form, no tracking, no mailing list. Plain email — and your address stays in our inbox.
Our stages
The path ahead
- 01
Capture the status quo together
Together with farms, we capture workflows, decisions and sources of information.
- 02
Capture the field as a story
Observations and field records become a traceable history of each field.
- 03
Make relationships visible
Weather, soil and satellite data reveal developments and their causes.
- 04
Explore and understand relationships
A crop model helps explore how water, nutrients, weather, rotations and mixed cropping interact.