Incorporating plenty of organic matter and compost into your garden is critical before planting your crops. Continuing to feed with slow release granular fertilizer works well for those people with limited time. This fertilizer will continue to feed for 3 months and it includes micronutrients that may have been depleted from gardens of years past. For those people with a little more time, water soluble fertilizers like Miracle Gro will feed your plants every 2 weeks and will help produce large yields. For those Organic gardeners, fish fertilizer works great as well.