Nutrients and crop nutrition
The use of nutrients (fertilisers) is a key
component in agricultural production systems, especially the use of
nitrogen and phosphorus, but also potassium and micro-nutrients. Their
use has impacts not only in terms of the consumption of non-renewable
resources, but those which are not taken up by crops can be lost to the
wider environment as pollutants, e.g. nitrate and phosphate in surface
and groundwater (contributing to eutrophication) or the loss of ammonia
and nitrous to the atmosphere (contributing to acid rain and climate
change). Consequently, it is important that nutrients are used
efficiently – providing efficient nutrition to the crop while
minimising losses to the environment and subsequent impacts. AERU have
undertaken numerous projects which have included assessing nutrient use
and minimising potential impacts.
Projects
Publications
- Tzilivakis, J., Warner, D., Green, A., & Lewis, K.A. (2021). A broad-scale spatial analysis of the environmental benefits of fertiliser closed periods implemented under the Nitrates Directive in Europe. Journal of Environmental Management, 299: 113674. DOI.
- Tzilivakis, J., Green, A., Warner, D.J and
Lewis, K.A. (2020) Identification of approaches and measures in
action programmes under Directive 91/676/EEC. Final report. Report
prepared for Directorate-General Environment, European Commission, for
project ENV.D.1/SER/2018/0017 by the Agriculture and Environment
Research Unit (AERU), University of Hertfordshire, United Kingdom. [Download].
- Lewis, K.A., Tzilivakis, J., Warner, D.J. &
Green, A. (2018). Agri-environmental Management in Europe:
Sustainable Challenges and Solutions - From Policy Interventions to
Practical Farm Management. 5m Publishing,
Sheffield, UK. ISBN: 1912178443
- Warner, D., Tzilivakis, J., Green, A. and
Lewis, K. (2017) Environmental impact assessment of sugar beet and
sugar cane grown in the United States. Confidential report to
Western Sugar Ltd
- Warner, D.J., Davies, M., Hipps, N., Osborne,
N., Tzilivakis, J. & Lewis, K.A. (2010). Greenhouse gas emissions
and energy use in UK-grown short-day strawberry (Fragaria xananassa
Duch) crops. Journal of Agricultural Science, 148(6):
667-681. DOI
- Warner, D.J. and Lewis, K.A. (2008) The
impact on greenhouse gas emissions of the revised Action Programme for
Nitrate Vulnerable Zones: Final Report for Project WT0757NVZ.
Department for Environment, Food and Rural Affairs (Defra).
- Tzilivakis, J., Jaggard, K., Lewis, K.A., May,
M. & Warner, D.J. (2005). An assessment of the energy inputs and
greenhouse gas emissions in sugar beet (Beta vulgaris)
production in the UK. Agricultural Systems 85,
101-119.
- Tzilivakis, J., Jaggard, K., Lewis, K.A., May,
M. & Warner, D.J. (2005). Environmental impact and economic
assessment for UK sugar beet production systems. Agriculture,
Ecosystems and Environment 107, 341-358.
- Jaggard, K., Tzilivakis, J., Warner, D.J. &
Lewis, K.A. (2004) Beet and the environment. British Sugar Beet
Review 72(2), 34-37.
- Tzilivakis, J., Jaggard, K., Lewis, K.A., May,
M. & Warner, D.J. (2002). Environmental assessment of sugar beet
production. Proceedings of the 65th IIRB (International
Institute for Beet Research) Congress, Brussels, February 13-14 2002.
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