\n Comparison between intercropping treatment from the three soils. A: Sand. B: Mars regolith simulant. C: Potting soil. Credit: PLOS ONE<\/i> (2024). DOI: 10.1371\/journal.pone.0302149
\n <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\nA group of crop systems analysts at Wageningen University and Research, in the Netherlands, has found evidence that intercropping on Mars could be a viable option for optimizing vegetable production.<\/p>\n\n <\/p>\n<\/section>\nIn their study, reported in the open-access journal PLOS ONE<\/i>, Rebeca Gon\u00e7alves, G. W. Wieger Wamelink, Peter van der Putten and Jochem B. Evers, grew test plants in simulated Martian soil in a greenhouse.<\/p>\n
If humans are ever to going to build colonies on Mars, colonists will need to grow most of their own food sustainably. Hauling soil or fertilizer from Earth to prevent depletion of nutrients in soil is considered to be unsustainable by most in the habitability field. For this new study, the research team looked at the possibility of intercropping as a way to optimize vegetable production.<\/p>\n
Intercropping involves planting mutually beneficial types of crops in the same general vicinity. Planting green peas near tomato plants, for example, helps the tomato plants by fixing nitrogen in the soil\u2014they pull nitrogen from the air and turn it into ammonia that is released into the soil, serving as a type of fertilizer for the tomato plant.<\/p>\n
To find out if intercropping might help future Mars colonists optimize production of vegetables, the researchers filled pots with either imitation Martian regolith or standard potting soil and then placed them in a large greenhouse. They then planted three types of crops: tomatoes, carrots and green peas\u2014prior studies have shown that they should be able to grow in Martian regolith. Some were planted alone in a pot, while others were mixed with other plants to see how they would cohabitate in a single soil sample.<\/p>\n
The research team then tended their garden as plants grew in the pots. They found, as expected, that all three types of plants grew well in their greenhouse. They also found that tomato plants in the pots with both tomatoes and peas grew better than those grown alone. The tomatoes grew bigger and had more potassium. They also found that adding sand to the soil in some of the pots increased yields. On the other hand, they found that intercropping decreased yields for the peas and carrots\u2014they preferred to grow alone.<\/p>\n
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More information:<\/strong>
\n\t\t\t\t\t\t\t\t\t\t\t\tRebeca Gon\u00e7alves et al, Intercropping on Mars: A promising system to optimise fresh food production in future Martian colonies, PLOS ONE<\/i> (2024). DOI: 10.1371\/journal.pone.0302149<\/p>\n<\/p><\/div>\n\n\t\t\t\t\t\t\t\t\t\t\t\t \u00a9 2024 Science X Network\n\t\t\t\t\t\t\t\t\t\t\t <\/p>\n
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\n\t\t\t\t\t\t\t\t\t\t\t\tCitation<\/strong>:
\n\t\t\t\t\t\t\t\t\t\t\t\tIntercropping viable for optimizing vegetable production on Mars (2024, May 2)
\n\t\t\t\t\t\t\t\t\t\t\t\tretrieved 2 May 2024
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