One of the experiments I’m trying this year is to mix charcoal in with my fertilizer. I’m mixing it at a ratio of 1 to 1, so in essence I’m cutting my fertilizer use by 50%.While the new charcoal will capture some of the fertilizer nutrients over time, I don’t expect any big change since I’m putting this on fairly lightly.
I can always add more fertilizer later in the year if the plants look like they might need some help.
Butterfly Gardening 