pluoghing land

[Tartar Horde]

Our (my) lack of knowledge on this subject makes me think about the very real need to grow "grains" after any significant event. Given that an experienced Ploughman could do an Acre a day (not that big really) gives us an idea how demanding this work can be, without any experience someone attempting the same task I reckon would struggle. I don't mind admitting I would find it a steep learning curve.
Regarding Horses you would definately need a larger framed Horse like Hunters or Shires, I don't think smaller Horses and Ponies will have the power to pull a Plough. Cattle seem to be the best choice for pulling power, and I think there would be more cattle available than large Horses. It seems a plough is not just a plough, there are different designs for differing soil types etc. I know how to saddle a Horse, but yoking a team of them to a plough is a different thing altogether.
I'd like to know your thoughts on the subject, and will it even be necessary to plough etc.