I'm a fan of organics for outdoor gardens. Prepping the soil with nice well-rotted compost in fall, then turning it in spring at planting time, then fertilizing with bat or seabird guano is a nice way to get a quality organic product without animals diggin up your soil because they want to get at the bone or blood meal that are sometimes used by outdoor veggie gardeners, who can keep an eye on their plants, lol.