A new ‘equity-first’ model claims to show where Tampa Bay should grow food for those who lack it. But what happens to the needs of gardens that already exist?By Kate WaxmanIn the East Tampa neighborhood where Dee Morales bought her house, residents have been asking for a supermarket for 10 years. They still don’t have one. So Morales did the math out loud: In the decade the neighborhood has spent waiting, a community garden could have grown thousands of pounds of food.