I would have suggested you keep your farmland, use it to generate food for yourself and some small sales, land is a precious resource that can give good dividends if managed well.
In times of conflict and hardship, those who own land and farms become kings....
49th rule of power
Well you got a good suggestion. But you cant tell the reason behind his purpose of selling it.
On the other hand, all lands are kept and not sold, how will others be opportuned to purchase it?