We have used ATV's to get into logging roads and area's way back off the beaten path a Tractor would have much difficulty getting to for planting some food plots.We rented a ATV disc from Hunters Specialties that had ballon tires and you ratcheted the disc's up or down and we put some weight onto the disc to dig in a little deeper,we also used the same ATV for spreading fertilizer,lime,seed and then dragging section of fence wire for covering up the seed.Now when it came to plowing and disc-ing up a large field the Tractor was the best piece of equipment available...if your doing small food plots an ATV would work just fine as long as it has plenty of horse power and like several mentioned to watch so it doesn't get hot on you.Then You can use the ATV for fun or hauling wood or your Deer out of the Woods.
I was thinking about getting an ATV or even a UTV for work and planting but with the high prices ranging from around $5000.00 up into over $12,000.00 for a nicely equiped UTV with a dump bed,roof and windshield I can buy a decent Tractor for $6,500.00 (Farm Trac) up to around $14,000.00 (Kioti) with hydrostatic trans and a front-end loader.