Nitrogen accountancy in space agriculture.

IF 4.4 1区 物理与天体物理 Q1 MULTIDISCIPLINARY SCIENCES npj Microgravity Pub Date : 2024-09-28 DOI:10.1038/s41526-024-00428-x
Kevin Yates, Aaron J Berliner, Georgios Makrygiorgos, Farrah Kaiyom, Matthew J McNulty, Imran Khan, Paul Kusuma, Claire Kinlaw, Diogo Miron, Charles Legg, James Wilson, Bruce Bugbee, Ali Mesbah, Adam P Arkin, Somen Nandi, Karen A McDonald
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Abstract

Food production and pharmaceutical synthesis are posited as essential biotechnologies for facilitating human exploration beyond Earth. These technologies not only offer critical green space and food agency to astronauts but also promise to minimize mass and volume requirements through scalable, modular agriculture within closed-loop systems, offering an advantage over traditional bring-along strategies. Despite these benefits, the prevalent model for evaluating such systems exhibits significant limitations. It lacks comprehensive inventory and mass balance analyses for crop cultivation and life support, and fails to consider the complexities introduced by cultivating multiple crop varieties, which is crucial for enhancing food diversity and nutritional value. Here we expand space agriculture modeling to account for nitrogen dependence across an array of crops and demonstrate our model with experimental fitting of parameters. By adding nitrogen limitations, an extended model can account for potential interruptions in feedstock supply. Furthermore, sensitivity analysis was used to distill key consequential parameters that may be the focus of future experimental efforts.

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太空农业中的氮衡算。
食品生产和药物合成被认为是促进人类探索地球以外的重要生物技术。这些技术不仅为宇航员提供了重要的绿色空间和食物机构,而且有望通过闭环系统内可扩展的模块化农业,最大限度地减少对质量和体积的要求,从而比传统的随身携带战略更具优势。尽管有这些优势,但用于评估此类系统的流行模式却有很大的局限性。它缺乏对作物栽培和生命支持的全面库存和质量平衡分析,也没有考虑到栽培多个作物品种所带来的复杂性,而这对于提高食物多样性和营养价值至关重要。在此,我们扩展了空间农业建模,以考虑一系列作物的氮依赖性,并通过实验拟合参数来演示我们的模型。通过增加氮限制,扩展模型可以考虑原料供应的潜在中断。此外,我们还通过敏感性分析,提炼出可能成为未来实验重点的关键影响参数。
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来源期刊
npj Microgravity
npj Microgravity Physics and Astronomy-Physics and Astronomy (miscellaneous)
CiteScore
7.30
自引率
7.80%
发文量
50
审稿时长
9 weeks
期刊介绍: A new open access, online-only, multidisciplinary research journal, npj Microgravity is dedicated to publishing the most important scientific advances in the life sciences, physical sciences, and engineering fields that are facilitated by spaceflight and analogue platforms.
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