Influence of orchard floor management and compost application timing on N partitioning in organically managed apple trees July 12, 2010 TerAvest, D., J.L. Smith, L. Carpenter-Boggs, L. Hoagland, D. Granatstein, and J.P. Reganold. 2010. HortScience. 45:637-642.
Effects of Ground Cover Management Strategies on Yield and Nitrogen Supply in Organic Apple Production Systems January 18, 2008 Poster presentation – BIOAg Research Symposium 2008.