Discussions about fertilizing tomatoes is mostly about selecting the right NPK and rarely discusses the amount to use. When quantity does come up, most comments suggest following the instructions on the box. But are the instructions on the box correct? Are the instructions complete enough so that you can apply the correct amount?
This post will compare some commercial products to see what they suggest and then I’ll compare that to reliable agricultural recommendations to see how much fertilizer gardeners should be using to grow great tomatoes.











