I have a 20X20-ish garden for my annual veggies that has been getting increasingly less productive over the years. It's getting a bit shady, so I blamed that, but last year not even my peas would grow, which get started before the trees leaf out. All the started/potted veggies that I put in never took off and seeds planted didn't come up well. I have been putting our chicken manure and shavings in the garden over the winter in rotating areas, then digging it in when the soil warms. Wondering if I am doing something horribly wrong, or even worse if something in the manure or shavings has gotten into the garden. We have been getting "regular" feed (not organic) and pine shavings. Would persistent herbicides be making their way in? and if so, any suggestions for soil remediation? Yellow dock, brown-eyed susans and herbs - thyme, lemon balm and chives - seems to do well, so never suspected herbicides until now, but starting to wonder. Will try a simple soil test in the spring and hoping it's just an imbalance, but would like to know if anyone else has this problem.