Thank you very much for your very succinct answer.
The gov.uk site states that an LLP is for "two or more persons associated for carrying on a lawful business with a view to profit".
In your view is the mere holding of an interest in agricultural land by the LLP sufficient. The land would eventually be sold at a profit in some years time.
My wife and I have decided to transfer our agriculural land which we own jointly to a simple partnership (not an LLP) comprising us two as partners.. We need evidence, i.e. an agreement, that the transfer has taken place. Is it sufficient to say e.g. "I, Mrs A of xyz do hereby irrevocally transfer half of the beneficial interest in the land I own at (description) to the C Partnership for nothing of monetary value. And the same for Mr. A. I know this has to be signed as a deed..
Sorry I misled you. We are not making a transfer of ownership, only the beneficial interest in the land. The Land Registry would not be involved. I think the only point I need to clear up is that since the transfer is from two people as owners to the same two people as partners does there have to be any consideration for the transfer of beneficial interest to make the contract valid.