My garden is VERY acidic. This winter I'm adding 3 bins of composted food waste, quail manure, newspaper, and horse manure. I'm hoping to bring the soil back to neutral. As I've dumped loads of manure in the garden, I'm thinking: oh, no! What if the pine bedding that's mixed in the horse manure is making my garden MORE acidic than the manure is helping it. So, what do you all say? Add it or not?