Solar assisted heating with hydroponic culture and supplemental winter lighting: Final report for the two-year period ended October 15, 1982 : part of … Research and Development (AERD) Program
March 29, 2010 by admin
Filed under Hydroponic Books
Comments Off
Ortho books How to Build & Use GREENHOUSES large&small,packaged and custom-built with special sections on solar heating,hydroponics,coldframes,window greenhouses and terrariums.
October 12, 2009 by admin
Filed under Hydroponic Books
Comments Off
