Potential nitrogen contributions from legumes in Pacific Northwest apple orchards
Mullinix, K. and Granatstein, D. 2011. Intl. J. Fruit Sci. 11:74-87.
Cover Cropping
Cover crops in orchards and vineyards
WSU Tree Fruit Research and Extension Center webpage. Contains links to additional resources and presentations.
Sustainability trade-offs in organic orchard floor management
Granatstein, D., Wiman, M., Kirby, E., Mullinix, K. 2010. Acta Hort. 873:115-122.
Influence of orchard floor management and compost application timing on N partitioning in organically managed apple trees
TerAvest, D., J.L. Smith, L. Carpenter-Boggs, L. Hoagland, D. Granatstein, and J.P. Reganold. 2010. HortScience. 45:637-642.
Mustard Green Manures
On-farm research has been conducted since 1999 to determine the benefits of mustard green manures and to improve their effectiveness. They are being used in irrigated regions of Eastern Washington to improve soil quality, control wind erosion, and manage soilborne pests.
Research knowledge and needs for orchard floor management in organic tree fruit systems
Granatstein, D. and E. Sanchez. 2009. Intl. J. Fruit Science 9:257-281.
Cover Crops Influence Meadow Vole Presence in Organic Orchards
M. R. Wiman, Kirby, E. M., Granatstein, D. M., Sullivan, T. P. HortTechnology July–September 2009 19(3).
Comparing tillage and mulching for organic orchard performance
Wiman, M., Kirby, E., Granatstein, D., Mullinix, K. 2008. Poster presented at 2008 BIOAg Research Symposium.
Mulching options for Northwest organic and conventional orchards
Granatstein, D. and K. Mullinix. 2008. HortScience 43(1):45-50.
Effects of Ground Cover Management Strategies on Yield and Nitrogen Supply in Organic Apple Production Systems
Poster presentation – BIOAg Research Symposium 2008.