These are links to research being done at Nojoqui Farms. Central Coast Agriculture Highlightsnewsletter, February 1999 Agronomic and Economic Evaluation of Organic Nitrogen Fertilizer Materials California Agriculture December 1999 Compost Offers High Economic Return Central Coast Agriculture Highlights newsletter, February 2001 Summary of Results and Conclusions From Five Years of Organic Fertilization Trials Organic Researh Foundation see winter 2004, page 12