I lightly fertilized and then loosened the soil deeply. I don't really need to do that as I'm putting in some more fresh eating carrots - Mokem and Yaya. They don't really get that long. Eight inches if I'm lucky. I've never grown a spot just for the carrots I eat fresh and don't store. I like it though as I won't feel like I'm shorting my winter stores when I eat these. They will also size up faster and are being planted earlier than the storage carrots.