I was looking for a good water soluable fertilizer that I can place in my drip irrigation system that will fertilize and acidy. My research has pointed my toward this product. Is this a good product for fertilizing blueberry bushes. I need to get my ph down some. Will this dissolve in water well enough to place in a dripline. I do have other ways to fertilize. I use fish emulsion as well but need to lower ph so was leaning toward this product.