I've had raised beds for a number of years now-5 perhaps? I grow tomatoes in them every year.I have added compost to them every year but it seems that in the last few my yield is lessening.Is there a fertilizer-organic is possible, but not essential at this point,that I can add?I read the 13-13 fertilizer someone added, what would be the advantage to starting with that? I get lots of leaf-really tall plants,but the yield is smaller than it was a few years back.I am in zone 9b in Davis, Ca. this is my first post.What advice have you for me? Thank you! Chai
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