620 hp John Deere 9620R hard at work in fall tillage with a 9 shank John Deere 915 V Ripper .
Two John Deere 9420R 4wds ripping soybean stubble with 7 shank John Deere 915 V Rippers .
A 620 hp John Deere 9620R and a 570 hp John Deere 9570R are chisel plowing to incorporate chicken litter with Great Plains Turbo Chisels .