That may be true but lets not forget, that some farmers do have their hands out to accept money NOT to grow things. Actually.....quite a few. Have to look at ALL of the picture.
Many are forced to accept money NOT to grow. It is very complicated. The idea of 'resting' land for a few years is based on solid science. MOST farmers cannot afford to place land out of production due to high land taxes, cost of equipment, fixed/discounted commodity prices, etc. ALL of those problems are 110% the fault of government.
There ARE ways to farm, at a profit, that allow for 'resting' of land, allow for wildlife habitat etc. NONE of those can be put into operation as long as government controls farming.
Food is a weapon. When government controls the production of food and prices they control the People. Look to Washington if one wants to know why things are a mess.