This is a project I'm doing for an online course (greenhouse management). This shows the development of tomato plants with Osmocote as fertilizer, toms watered with soluable fert (miracle grow), and no fert at all. The osmacote tom has set a tom! The MG plant looks good. The non fertilized plant is about to keel. I really am surprised about the osmocote plant. I'd like to test it against organic ferts. I am, however, having a massive fungus gnat problem!
PS. I did get my Horticulturist Certificate from University of Guelph (with Distinction). It was a good experience. Not really happy with the greenhouse management course - not much student interaction.