Newcastle University

Introduction

I have been involved in a wide range of research projects connected with the study of nutrient cycling in soils and with the environmental impact of farming systems. At the smallest scale I have used isotope dilution techniques to investigate mineralisation, immobilisation and nitrification processes. The understanding gained has been used to develop modelling approaches to predict soil nutrient cycling at soil, field and farm scale and to guide fertiliser recommendation systems. I have also maintained a strong link to organic farming and carried out some research into nutrient cycling (N, P, K) in organic farming systems

Degree Programme Director for BSc Environmental Science and the Joint Honours in Science programmes

Module teaching including both  classroom and fieldwork classes at undergradaute and postgraduate level

Supervison of PhD students and other student research projects

• Jones DL, Willett VB, Stockdale EA, Macdonald AJ, Murphy DV. Molecular Weight of Dissolved Organic Carbon, Nitrogen, and Phenolics in Grassland Soils. Soil Science Society of America Journal 2012, 76(1), 142-150.
• Walker RL, Edwards AC, Maskell P, Watson CA, Rees RM, Knox OGG, Stockdale EA. The effect of co-composted cabbage and ground phosphate rock on the early growth and P uptake of oilseed rape and perennial ryegrass. Journal of Plant Nutrition and Soil Science 2012, 175(4), 595-603.
• Murphy DV, Cookson WR, Braimbridge M, Marschner P, Jones DL, Stockdale EA, Abbott LK. Relationships between soil organic matter and the soil microbial biomass (size, functional diversity, and community structure) in crop and pasture systems in a semi-arid environment. Soil Research 2011, 49(7), 582-594.
• Gonzalez-Quinones V, Stockdale EA, Banning NC, Hoyle FC, Sawada Y, Wherrett AD, Jones DL, Murphy DV. Soil microbial biomass-Interpretation and consideration for soil monitoring. Soil Research 2011, 49(4), 287-304.
• Stockdale EA, Watson CA. Biological indicators of soil quality in organic farming systems. Renewable Agriculture and Food Systems 2009, 24(4), 308-318.
• Clode PL, Kilburn MR, Jones DL, Stockdale EA, Cliff JB, Herrmann AM, Murphy DV. In Situ Mapping of Nutrient Uptake in the Rhizosphere Using Nanoscale Secondary Ion Mass Spectrometry. Plant Physiology 2009, 151(4), 1751-1757.
• Olea R, Guy JH, Edge H, Stockdale EA, Edwards SA. Pigmeat supply chain: Life Cycle Analysis of contrasting pig farming scenarios. In: Stockdale, E., Martindale, W, ed. Measuring and Marketing the Environmental Costs and Benefits of Agricultural Practice. Warwick, UK: Association of Applied Biologists, 2009, pp.91-96.
• Watson CA, Walker RL, Stockdale EA. Research in organic production systems - Past, present and future. Journal of Agricultural Science 2008, 146(1), 1-19.
• Herrmann AM, Clode PL, Fletcher IR, Nunan N, Stockdale EA, O'Donnell AG, Murphy DV. A novel method for the study of the biophysical interface in soils using nano-scale secondary ion mass spectrometry. Rapid Communications in Mass Spectrometry 2007, 21(1), 29-34.
• Herrmann AM, Ritz K, Nunan N, Clode PL, Pett-Ridge J, Kilburn MR, Murphy DV, O'Donnell AG, Stockdale EA. Nano-scale secondary ion mass spectrometry - A new analytical tool in biogeochemistry and soil ecology: A review article. Soil Biology and Biochemistry 2007, 39(8), 1835-1850.
• Stockdale EA, Brookes PC. Detection and quantification of the soil microbial biomass - Impacts on the management of agricultural soils. Journal of Agricultural Science 2006, 144(4), 285-302.
• Stockdale EA, Watson CA, Black HIJ, Philipps L. Do farm management practices alter below-ground biodiversity and ecosystem function? Implications for sustainable land management. Peterborough, UK: Joint Nature Conservation Committee, 2006. JNCC report 364.
• Cookson WR, Abaye DA, Marschner P, Murphy DV, Stockdale EA, Goulding KWT. The contribution of soil organic matter fractions to carbon and nitrogen mineralization and microbial community size and structure. Soil Biology & Biochemistry 2005, 37(9), 1726–1737.
• Murphy DV, Recous S, Stockdale EA, Fillery IRP, Jensen LS, Hatch DJ, Goulding KWT. Gross Nitrogen fluxes in soil: Theory, Measurement and Application of 15N pool dilution techniques. Advances in Agronomy 2003, 79, 69-118.
• Berry PM, Stockdale EA, Sylvester-Bradley R, Philipps L, Smith KA, Lord EI, Watson CA, Fortune S. N, P and K budgets for crop rotations on nine organic farms in the UK. Soil Use and Management 2003, 19(2), 112-118.
• Stockdale EA, Shepherd MA, Fortune S, Cuttle SP. Soil fertility in organic farming systems – fundamentally different?. Soil Use and Management 2002, 18(3), 301-308.
• Stockdale EA, Hatch DJ, Murphy DV, Ledgard SF, Watson CJ. Verifying the nitrification to immobilisation ratio (N/I) as a key determinant of potential nitrate loss in grassland and arable soils. Agronomie 2002, 2(7-8), 831-838.
• Stockdale EA, Lampkin NH, Hovi M, Keatinge R, Lennartsson EKM, Macdonald DW, Padel S, Tattersall FH, Wolfe MS, Watson CA. Agronomic and environmental implications of organic farming systems. Advances in Agronomy 2001, 70, 261-327.
• Murphy DV, Macdonald AJ, Stockdale EA, Goulding KWT, Fortune S, Gaunt JL, Poulton PR, Wakefield J, Webster CP, Wilmer W. Soluble organic nitrogen in agricultural soils. Biology and Fertility of Soils 2000, 30(5-6), 374-387.