I'm a barrister. I think I can help with this.
Is your old farmer friend deceased?
Do you know who the executors are?
Its quite easy. You can use this new online service offered by the government: https://probatesearch.service.gov.uk/#wills
It costs £10 and takes up to 10 working days for the documents. You should then definitively know whether or not you were left the land.
If I have answered your query please press accept, if not, please ask me for clarification.
You need to know the year of death.
The documents are the will and associated documents (this will show whether you are a beneficiary).
I think this website might help (you might need to visit the Somerset local registry in person as I have not used this site before):
My response answers your question as you will be able to find out / check the information you want. If you agree, please accept my answer. You will have to pay separately further questions.
Please remember to accept my answer if you're satisfied with it.
There is a green button which says "accept", press that to accept my answer. Thank you.
I cannot assist with that I'm afraid. I'll email support.
Thank you. Me too, I am in court tomorrow!