Agricultural leases are by their nature rather different to other lease types. With most other types of leases the tenant is not permitted to significantly alter the premises without specific consent from the landlord.
However with agricultural leases, the way the tenant uses the property may potentially either improve the property or cause detriment to it (depending upon the husbandry methods that the tenant employs).
Accordingly it is essential that an Agricultural lease is properly drafted to recognise the competing needs of the tenant and the landlord. In addition the Agricultural Tenancies Act 1990 and its compensation regime need to be taken into account.
If you wish to avoid disputes, then a rural lease should not just be based on a handshake.