Do Ghanaian farmers have pension?

Is there an Agric pension plan or fund for Ghanaian farmers? I am only asking maybe there is and I stand to be corrected but I ask this because it appears it is mandatory for all employers & workers to pay some sort of pension whether you like it or not. Why has nothing been put in place for farmers? Perhaps the exception is Cocoa farmers....the question is..... are they the only ones playing a role in Agriculture in Ghana? I wish we could put this question forward to the policy makers?