Well, spray herbicides does not demand much power so it could be quick, moving soil demand much power, cutting grass and alike demand much power, irrigation dem

Well, spray herbicides does not demand much power so it could be quick, moving soil demand much power, cutting grass and alike demand much power, irrigation demand a certain amount of power. I suppose that a slowly moving large machine could be powered by p.v. for spraying chemicals and for certain kind of irrigation, deep water pumping probably eat more power but still enough for a 40kWp p.v. spread around a field, for the field. Moving soil will demand few days instead of one, but for that I see not much issues, similarly harvesting. Am I wrong?