Add this copy of Plant Nutrient Facts for Hydroponics & How to Make Your to cart. $57.54, very good condition, Sold by ThriftBooks-Baltimore rated 4.0 out of 5 stars, ships from Halethorpe, MD, UNITED STATES, published by Foothill Hydroponics.
Add this copy of Plant Nutrient Facts for Hydroponics & How to Make Your to cart. $103.74, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 1998 by Foothill Hydroponics.