Itronics Inc., a clean energy company based in Reno that makes fertilizer out of recycled material, reported its first half 2015 GOLD’n GRO fertilizer sales are down 2 percent compared to the same period last year. The volume of fertilizer sold in the first half was up five percent, driven by increased sales of one of the lower priced GOLD’n GRO fertilizers. First half 2015 GOLD’n GRO fertilizer sales were $1,223,977 compared to first half 2014 GOLD’n GRO sales of $1,254,217.