That is a chopper on the back. You just feed the bales in it. I know they make bigger ones that blow it over the whole field. But they take more straw. You only need it over the row of plants. 1 bale goes about 35 feet. We still do the rows with the irrigation pipes by hand. We grow are own winter rye for the straw. We cut it just as it it heading out so the seed doesn't mature, otherwise we get a lot of volunteer coming up in spring. Wheat straw is the worst for that. Plus the winter rye gets about 6-7 foot tall and produces alot of straw. I have to bale in low gear and the bales come out 1 right after another.