I have rather leggy tomato plants (tall and not as bushy as in previous years). It was suggested that, now that they are blooming and I have some green tomatoes on them, I should use some fertilizer that has a lot of phosphorus in it.
It has to be liquid or water soluble because all of my vegetables were planted through landscaping fabric to keep out weeds, so I can't really side dress them without cutting back the fabric (allowing more weeds).
I'd like to stay organic. Any suggestions?