Disclaimer: This post was originally posted by Hero Member, gardendoc. This user is located in Ocean Springs, MS Zone 9a. This was originally posted on April 17, 2013.
Right now I'm transitioning from lettuce. For the winter leafy crops I use a locally available certified organic fertilizer. With the heavier feeding tomatoes, peppers, etc. I use the ag grade granular. When prepping after using the granular fertilizers I only remove the mix immediately surrounding the fertilizer strip, not the entire top 2" which I consider extreme overkill when considering salt buildup.