Improving the sustainability of phosphorus use in arable farming

提高耕作中磷使用的可持续性

• 批准号: BB/I024283/1
• 负责人: Tiina Roose
• 金额: $ 14.66万
• 依托单位: University of Southampton
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=BB%2FI024283%2F1
• 关键词: Improving; sustainability; phosphorus; use; arable

The increasing global demand for food, concerns over dwindling reserves of good quality phosphate rock and the climate-change impacts of fertiliser manufacture, fluctuating fertiliser prices, and the adverse environmental, social and economic consequences of phosphorus (P) pollution of water require the development of innovative and more sustainable solutions to the use and management of P on farms. Current systems of production rely on inputs of highly water-soluble fertilisers to maintain large reserves of background P in the soil. Recovery of applied P by crops is consequently low (<30%) and this inefficiency is not only wasteful of resources but also increases the risk of eutrophication through increased P loss in runoff from land. A peak in global phosphate rock production could occur within the next two decades whilst eutrophication is estimated to be costing the UK over £75 million per annum. A potential alternative and more sustainable strategy for P use in arable farming systems is to maintain a lower background of soil P but supplement this with more targeted P applications and/or by fertilisers that are more efficiently used, and/or fertilisers recovered from domestic or livestock wastewaters. We propose here that adoption of these more sustainable P use strategies will reduce growing costs and current dependence on elevated soil P-fertility, so will help to preserve finite global reserves of P and reduce export of P in runoff from land. In this proposal a multi-disciplinary, cross-industry research team will investigate and develop a new direction for P management that will improve P-use efficiency in arable crops, maximise recycling of wastewater P, reduce the pressure on rock phosphate reserves and minimise wider environmental impacts. Through multi-centre modelling, laboratory studies and field experiments we will compare and develop methods to improve P-use efficiency by (a) reducing the fixation of applied P by soils, (b) improving the accessibility of applied P to crops, and (c) improving the exploitation of soil P previously considered to be largely unavailable to crops. The magnitude of the economic and wider environmental benefits from maintaining lower soil P-fertility need to be quantified across a range of soil types and cropping systems. On completion, the project will deliver novel and profitable soil and fertiliser management strategies that will help farmers maintain the economic viability of their farm businesses and meet any future restrictions on P management under the Water Framework Directive. The project will have relevance across the spectrum of conventional, LEAF and organic farming systems and will involve overseas collaboration on what is internationally recognised as a key issue for sustainable farming and global food security. BBSRC funded project will develop mathematical models and optimisation techniques to describe phosphate movement and uptake by cropping systems.

全球对粮食需求的不断增长、对优质磷矿石储量减少的担忧、化肥生产对气候变化的影响、化肥价格波动以及磷污染对环境、社会和经济的不利影响，都要求开发创新的、更可持续的解决方案来解决农场磷的使用和管理问题。目前的生产系统依赖于高水溶性肥料的投入，以保持土壤中大量的背景磷。因此，作物对施用的磷的回收率很低（<30%），这种低效率不仅浪费资源，而且通过增加土地径流中的磷损失而增加了富营养化的风险。全球磷矿石产量的峰值可能在未来20年内出现，而富营养化估计每年将使英国损失超过7500万英镑。一个潜在的替代和更可持续的战略，在耕地耕作系统中使用的P是保持较低的土壤P的背景，但补充这与更有针对性的P应用和/或更有效地使用的肥料，和/或从家庭或牲畜废水中回收的肥料。在这里，我们建议，通过这些更可持续的P使用策略将减少不断增长的成本和目前对土壤P肥力升高的依赖，因此将有助于保护有限的全球储备的P，并减少从土地径流P的出口。在这项提案中，一个多学科、跨行业的研究小组将调查和开发磷管理的新方向，以提高可耕地作物的磷利用效率，最大限度地回收废水中的磷，减少对磷矿储量的压力，并最大限度地减少对环境的影响。通过多中心建模、实验室研究和田间试验，我们将比较和开发提高磷利用效率的方法，方法包括：（a）减少土壤对施入磷的固定;（B）提高作物对施入磷的可获得性;（c）提高以前认为作物基本上无法利用的土壤磷的利用率。保持较低土壤磷肥力的经济效益和更广泛的环境效益的大小需要在一系列土壤类型和种植系统中进行量化。该项目完成后，将提供新颖且有利可图的土壤和肥料管理策略，帮助农民维持其农业业务的经济可行性，并满足水框架指令下未来对磷管理的任何限制。该项目将涉及传统、LEAF和有机农业系统，并将涉及国际公认的可持续农业和全球粮食安全关键问题的海外合作。BBSRC资助的项目将开发数学模型和优化技术，以描述种植系统的磷酸盐运动和吸收。

项目成果

Use of a coupled soil-root-leaf model to optimise phosphate fertiliser use efficiency in barley

• DOI: 10.1007/s11104-016-2883-4
• 发表时间: 2016-04
• 期刊: Plant and Soil
• 影响因子: 4.9
• 作者: J. Heppell;S. Payvandi;P. Talboys;K. Zygalakis;D. Langton;R. Sylvester-Bradley;A. Edwards;R. Walker;P. Withers;Davey L. Jones;T. Roose

Modelling the optimal phosphate fertiliser and soil management strategy for crops

• DOI: 10.1007/s11104-015-2543-0
• 发表时间: 2016-04-01
• 期刊: PLANT AND SOIL
• 影响因子: 4.9
• 作者: Heppell, J.;Payvandi, S.;Roose, T.
• 通讯作者: Roose, T.

Multimodal correlative imaging and modelling of phosphorus uptake from soil by hyphae of mycorrhizal fungi.

• DOI: 10.1111/nph.17980
• 发表时间: 2022-04
• 期刊: NEW PHYTOLOGIST
• 影响因子: 9.4
• 作者: Keyes, Sam;van Veelen, Arjen;Fletcher, Dan McKay;Scotson, Callum;Koebernick, Nico;Petroselli, Chiara;Williams, Katherine;Ruiz, Siul;Cooper, Laura;Mayon, Robbie;Duncan, Simon;Dumont, Marc;Jakobsen, Iver;Oldroyd, Giles;Tkacz, Andrzej;Poole, Philip;Mosselmans, Fred;Borca, Camelia;Huthwelker, Thomas;Jones, David L.;Roose, Tiina
• 通讯作者: Roose, Tiina

Imaging the interaction of roots and phosphate fertiliser granules using 4D X-ray tomography

• DOI: 10.1007/s11104-015-2425-5
• 发表时间: 2016-04-01
• 期刊: PLANT AND SOIL
• 影响因子: 4.9
• 作者: Ahmed, Sharif;Klassen, Trudy Naugler;Roose, Tiina
• 通讯作者: Roose, Tiina

A multi image-based approach for modelling plant-fertiliser interaction

• DOI: 10.1016/j.rhisph.2019.100152
• 发表时间: 2019-06-01
• 期刊: RHIZOSPHERE
• 影响因子: 3.7
• 作者: Fletcher, Daniel M. McKay;Keyes, Samuel D.;Roose, Tiina
• 通讯作者: Roose, Tiina