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在火星上间接种植:一个有希望的系统,以优化未来火星殖民地新鲜食品的生产
Rebeca Gonçalves1, G W Wieger Wamelink2, Peter van der Putten1
1Centre for Crop System Analysis, Wageningen University & Research, Wageningen, The Netherlands.
PloS one
|May 1, 2024
概括
火星上的间歇作物显示出粮食生产的前景,但需要改善土壤. 增强火星规律的有益细菌 (Rhizobia) 是成功固和提高作物产量的关键.
科学领域:
- 天体生物学 天体生物学
- 农业科学 农业科学
- 行星科学 行星科学
背景情况:
- 未来的火星殖民者需要可持续的粮食生产方法.
- 食物脱水期间的营养损失需要当地农业.
- 交叉作物提供了空间息地资源优化潜力.
研究的目的:
- 为了评估火星农业的杂交作物的可行性.
- 在模拟的火星 regolith 中评估植物性能.
- 为了确定杂交作物的对作物产量和营养含量的影响.
主要方法:
- 模拟火星条件使用,温室和火星 regolith模拟剂 (MMS-1).
- 在单一作物和交叉作物系统中种植豆,胡卜和番茄.
- 测量了植物生物质,产量,收获指数和营养含量;计算了相对总产量 (RYT).
主要成果:
- 在MMS-1中,由于Rhizobia结节失败 (RYT = 0.93),插作是有害的.
- 番茄产量在杂交作物中有所改善,而豆类和胡卜产量在MMS-1中下降.
- 间作物显著优于沙子中的单种作物,具有有效的结节 (RYT = 1.32).
结论:
- 火星 regolith 的不利条件 (pH,紧度,营养) 抑制了 Rhizobia 的结节.
- 改善 regolith 条件以支持 Rhizobia 对于交叉作物成功至关重要.
- 优化杂交作物,有规律修订,对火星的粮食生产有希望.
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