New garden(er) - need help identifying problem
I'm a new gardener... Just putting that out there. I'm growing a spaghetti squash in a square foot garden. I'm getting yellow fringing. There's a picture attached. Any idea if it's fertilizer burn, or maybe it's a deficiency (Mg?).
The raised bed is filled with triple mix, which was 1/3 compose. I plan to go more organic in the future (start in the fall), but for now used general purpose liquid fertilizer this season since I was getting N deficiency signs. I'm attaching the image .