Depends on which farm sector.
Part of my family is into flowers. I can tell you that flowers are like gold. Almost every flower farmer in our region is loaded.
Lowest tier for farming are traditional crops. You need lots of acres and good machines to get efficient en break-even. Only a few manage, but most do not.
I would probably focus on farm tech. Automated greenhouses growing tomatoes, cucumbers etc is for example big business. If done right you can be 10-50 times more profitable per square feet than a outside potato field.
100k isn't enough to start something like that. More in the line of 5-10m start capital needed.
Your other comments reveal you're living in The Netherlands. The farming sector there is massively subsidized both via EU and local funds. Now during COVID-19 the state is bankrolling up to 70% of the revenue of the horticulture industry[1].
And that's before you get into all the indirect subsidies like zoning, fuel subsidies for industrial use etc. that are largely aimed at subsidizing farmers.
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