Video: Are You Ready for SPRING FIELD WORK?Big Tractor Power is out in the field with three JOHN DEERE tractors hard at work on early spring field preparation for corn planting. Working in this Western Kentucky field is a 620 hp JOHN DEERE 9620RX tractor, a 345 hp JOHN DEERE 8345R tractor and a 210 hp JOHN DEERE 7210R tractor. The 9RX and 8R tractors are applying anhydrous ammonia as a fertilizer ahead of corn planting. The 7R equipped with an H480 loader is cleaning up tree limbs and rocks ahead of the JOHN DEERE 8400R tractor and DB60 corn planter. Viewers also get to see the operators view from inside the cab of the 9RX, 8R and 7R.