In recent years, there has been a lot of research on soil, nutrient cycling, soil amendments and plant nutrition in the Maritime provinces.
Dr. David Burton
Dr. Andrew Hammermeister
Dr. Andy Hammermeister is Director of the OACC and Assistant Professor at NSAC. He is interested in developing and promoting sustainable organic farming systems, as well as organic production research in the prairies as well as the Maritimes.Dr. Hammermeister is currently overseeing the national Organic Science Cluster involving over 80 scientists at 20 institutions across Canada.His current research interests at the NSAC/OACC over the last 5 years have included:
- weed and fertility management in organic small fruit production
- organic options for control of wireworm
- the effect of forages in organic crop rotations
- use of forages as a mulch in cereal crops: effects on weed suppression and fertility
- wheat crop and weed response to variable seeding rates of wheat at different levels of soil fertility
- the nutrient supplying capacity of selected organic amendments
- use of pelletized poultry manure to optimize yield and protein content in spring wheat
- evaluation of green manures as sources of fertility under organic management
Dr. Derek Lynch
Dr. David Percival
- Environmental regulation of carbon assimilation and metabolism (i.e., source-sink relationships)
- Whole plant growth dynamics
- Impact of environmental stresses on phytochemistry, growth and development
- Plant growth regulation and the use of exogenous plant growth regulators
- Soil fertility and plant nutrition dynamics and the subsequent impact on symbiotic relationships, plant growth, development, yield and fruit structure and composition
- Wild Blueberry Research Program
- Percival, D.C. and K.R. Sanderson. 2004. Main and interactive effects of vegetative year applications of nitrogen, phosphorous and potassium fertilizer. Small Fruits Review. In Press.
- Glass, V.M., D.C. Percival, and J.T.A. Proctor. 2003. Influence of decreasing soil moisture on stem water potential, transpiration rate, and carbon exchange rate of the lowbush blueberry (Vaccinium angustifolium Ait.) in a controlled environment. J. Hort. Sci. and Biotech. 78(3):359-364.
- Janes, D.E. and D.C. Percival. 2003. Trends in Lowbush Blueberry Cultivar Development. J. Amer. Pomological Soc. 57(2):63-69. (Note: this paper received won the Ulysses P. Hendrik Award for Best Student Paper in 2002).
- Jeliazkova, E.A., and D.C. Percival. 2003. N and P fertilizers, some growth variables, and mycorrhizae in wild blueberry (Vaccinium angustifolium Ait.). ActaHort. 626:294-304.
- Jeliazkova, E., and D.C. Percival. 2003. The seasonal tolerance of the mycorrhizal association of the lowbush blueberry (Vaccinium angustifolium Ait.) to drought stress. Can. J. Pl. Sci. 83:583-586.
Dr. Gordon Price
Specialties: Waste Management and Disposal of Specified Risk Materials (SRM), Degradation of Resistant Proteins in Soils and Biological Systems, Environmental Impact of Contaminants from Organic AmendmentsCurrent Research
- Using Composting Systems for the Control of Prion-Mediated Diseases
- Development of Novel Techniques to Trace the Decay of Degradation Resistant Proteins in Soils and Compost Systems
- Monitoring of Pharmaceutical and Persistent Organic Pollutants in Soils and Aquatic Systems from the Land – Application of Municipal Biosolids
- Characterization and Inventory of Organic Waste Feedstocks in Atlantic Canada
- Evaluation of Waste to Energy Technologies
- Bio-Fertilizer and Nursery Media Development from Traditional and Non-Traditional Organic Waste Feedstocks
- Degradation of Resistant Proteins in Composts
Price, G.W., Voroney, R.P., and Chong, C. (2009) Crop performance on soils receiving annual papermill biosolid amendments with and without supplementary nitrogen. Can. J. Soil Sci. (in press)
Price, G.W., Voroney, R.P., and Gordon, A.M., (2009) Impacts of tree-based land use systems on earthworm populations in southern Ontario, Canada. Applied and Environmental Soil Science (in review).
Price, G.W. and Voroney, R.P. (2008) Response to annual applications of de-inked papermill biosolids by field earthworms on three agricultural soils. Applied Soil Ecology 38: 230-238.
Price, G.W. and Voroney, R.P. (2007) Papermill biosolid effects on soil physical and chemical properties. Journal of Environmental Quality 36: 1704-1714.
Dr. Mehdi Sharifi
Dr. Sharifi has moved on from Nova Scotia, but during his short stay here, he worked on several projects, including: Bio-waste utilization in high-value organic vegetable cropping systems
- Evaluation of shell fish sediments as soil amendment and/or weed suppressant
- Evaluation of bio-waste compost and cover crops nutrient values for wine grape production
- Wood-ash assessment for use in grape production
- Evaluation of sustainable nutrient management practices to improve yield and quality in wine grape production
- Bio-solids phosphorus forms, transformation and bio-availability in soil
- Municipal solid food waste compost application and fertigation program modification in strawberry plasti-culture
- Improving nitrogen management in field lettuce production by quantifying nitrate leaching
- Soil nitrogen supply test for soils with a history of organic amendment application
- Refining nitrogen management by quantifying nitrate leaching in lettuce production
- Effect of bio-waste application and fertigation adjustment on strawberry plasti-culture yield and quality
- Use of mussel sediments as soil amendment and/or weed suppressant; Career Focus Fund
- Evaluation of bio-waste application effect on wine grape yield, soil quality and nitrate leaching
- Assessment of mussel fish sediments as soil amendment in broccoli, potato and wine grape production
Dr. Phil Warman
Organic Agricultural Centre of Canada
Agriculture and Agri-Food Canada Scientific Staff and Expertise