"financial subsidies which they will no longer receive if we leave the EU"....

and, the Govt promise to match the subsidies for a limited period is exactly that, a short term sticking plaster. Thereafter farmers are going to have to "earn" their subsidies by meeting environmental targets. In other words, the Tories will progressively increase the targets until they're unachievable and the subsidies will all but disappear. Give them credit, they always find good disguises.