I'm sure the photo would look yellowish now but this is time related.
In my opinion this is how it should look more or less restored to its original colors.
(There's no crop on the fields, its bare ground)
We don't know the actual color of the soil and other things in the image, so, that being said, here's my guess at how it might have looked. Also, I started to remove the hundreds of small white spots on the image and gave up part way through. They are easy to remove, just tedious. Unfortunately, because of all the JPG compression artifacts on the image the usual quick and dirty technique for removing lots of small bright pixels (a "Dust & Scratches" pass on a layer set to darken), doesn't work very well and you have to go back to more of a manual technique.
I agree Tom. I hope I'm doing this right as this is the first time I've been on this forum (about any forum as a matter of fact!). I think the picture is somewhere between Tom and Jerry's, with a little less red in Jerry's and a little more color in Tom's. The soil color is close to the unfaded part of the original photo.
Unfortunately, I have to disagree pretty strongly with your statement that "the borders are the original colors of the photo". I've seen a lot of different soils in my life, and I've seen a lot of faded prints, but I've never seen any soils that are the type of yellow on the edges of the image you posted (when viewed on a color calibrated monitor), even if the scene had been photographed at sunrise or sunset. Yellow crops, sure, but yellow soil ... humm ... quite rare, at least in the USA, LOL.
One of the things that happens to old prints is that if one part of the print has been exposed to sunlight or other bright, blue/UV rich light, the colors in that area shift one way, whereas the colors in the areas that haven't exposed to light shift in a different direction. The first is due to photochemical reactions, the second is due to ordinary, non-photochemical reactions like oxidation, reactions with pollutants like nitric oxides in the air, etc. The two types of reactions act differently on the various dyes in the print.
Jerry, I played with it a little based on your finished product and I think this is pretty close. I'm very inexperienced with Photoshop. We believe the photo was taken in July in the Oklahoma Panhandle so the only green would be where the yard was being watered or a little rain had caused some weeds to sprout.
I really should have given you more information. The soil directly around the farm was summer fallow so pretty much just dirt. The areas behind the farm that is a little more golden is grass that is dead due to the time of the year. The areas kind of golden in the distance would be wheat stalks, which are pretty gold colored. A lot of different colors in this picture!