This is mostly played in the key of G, I have seen her use E shapes on capo 
3, so if you prefer it that way just hit "transpose"

3|2|0|0|0|3 - G
x|3|2|0|1|0 - C
x|2|4|4|3|2 - Bm
x|x|0|2|3|2 - D
3|x|0|0|1|3 - Gsus4
x|2|0|0|0|3 - G/B
x|0|2|0|1|0 - Am7
x|2|4|2|3|0 - Bm7

G       Am7        Bm7       C

G          C                    Bm                C
   Baby I know that we've got trouble in the fields
          G                   C                D                G     Gsus4
When the bankers swarm like locust out there turning away our yield
G                  C              Bm            C
   The trains roll by our silos, silver in the rain
                 G               C               D                     G   Gsus4
They leave our pockets full of nothing but our dreams and the golden grain

G                     C            Bm                C
   Have you seen the folks in line downtown at the station
G                          C                D                   G     Gsus4
  They're all buying their tickets out and talking the great depression
G               C                    Bm          C
   Our parents had their hard times fifty years ago
           G                   C              D               G
When they stood out in these empty fields in dust as deep as snow

Chorus:
G                 C               D
    And all this trouble in our fields
          G      G/B           C
If this rain can fall, these wounds can heal
               D               G      Gsus4
They'll never take our native soil
G             C                     D
    But if we sell that new John Deere
                G          G/B         C
And then we'll work these crops with sweat and tears
                G         Am7
You'll be the mule I'll be the plow
     Bm7                 C
Come harvest time we'll work it out
                     Am7     D                       G      Am7     Bm7    C
There's still a lotta love, here in these troubled fields

There's a book up on the shelf about the dust bowl days
And there's a little bit of you and a little bit of me
In the photos on every page
Now our children live in the city and they rest upon our shoulders
They never want the rain to fall or the weather to get colder

Repeat Chorus

Outro:
         G                 Am7
You'll be the mule I'll be the plow
       Bm                        C
Come harvest time we'll work it out
                Am7          D                        G
There's still a lotta love, here in these troubled fields