I just wanted to pass along a great resource here in the Portland area. It’s called Concentrates, Inc. and they are an Organic agricultural supply company. I have to say that not only do they have a vast array of products including: soil amendments, meals, fertilizer, compost and more, but also reasonable prices. If you click on the link you’ll be taken to their blog and in the left corner is a link to their price sheet. Their blog is very helpful and informative too. Centrally located in SE Portland- view their blog for address. Time to go shopping!
I’ve also added a link to their site at the bottom of the page ‘Companies I use and recommend’