Gardening on the moon and in space? Extraterrestrial agriculture

Agriculture and soil. Pollution control, soil remediation, humus and new agricultural techniques.
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Exnihiloest
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by Exnihiloest » 17/01/19, 20:43

nico239 wrote:We talked about it everywhere ...

One link among others
https://www.cnetfrance.fr/news/le-robot ... 879365.htm

France Inter even devoted part of their head to the square yesterday.

You could see that they didn't know what they were talking about: I mean plants.

The objective is to feed the 6 astronauts who on Mars with this question asked by a scientist: how many hectares to feed 6 people?

Didier you could apply as a scientific advisor for market gardening : Mrgreen:

Finally a positive subject, it's nice! We can guess that the basic problem will be less an agricultural problem than an infrastructure engineering problem. We need water, a temperature without too much difference, a gas mixture not too far from the air neither by its composition nor by its pressure I suppose.
On the moon, the nature of the soil not being very far from what we have on earth, it should be able to supply the minerals. Then there is the problem of lighting, provide LEDs. The lunar day being 29 days, not sure that all the plants support, and probably not the 15 days at night.
The solutions to be implemented therefore risk being very close to urban farming techniques, once we have obtained the airtight room and the water, which risks being the bulk of the job (note something interesting: no need for glyphosate to prepare the ground).
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by sen-no-sen » 17/01/19, 20:50

Yeah it's cool and we can finally restart nuclear tests! : Mrgreen:

A base on the Moon and after a base on Mars, ok but then?
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by Christophe » 17/01/19, 21:33

No kidding? Let's drop the plants for the space conquest!

The micro algae it's 10 times better!
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by Moindreffor » 17/01/19, 22:21

Christophe wrote:No kidding? Let's drop the plants for the space conquest!

The micro algae it's 10 times better!

spirulina is the future : Mrgreen:
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by ENERC » 18/01/19, 07:50

No kidding? Let's drop the plants for the space conquest!

It takes a lot of CO2 to grow micro algae: bubbling air even at 500 ppm is not enough.
Most field tests use industrial releases such as those from thermal power plants. The ideal is in the 20% of CO2 - beyond it is too acidic for algae, except for spirulina which donuts in soda ash.
In a spaceship, it won't work. It is better to have plants that capture CO2 by themselves through their leaves.

On the other hand on Mars the CO2 is available in high concentration for free : Cheesy:
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by Did67 » 18/01/19, 09:08

Sure ???

I saw with my own eyes cultures of spirulina in open basins, in a greenhouse, in Alsace. Just sort of paddle wheels to constantly stir the water. Without CO enrichment2...

For my part, I prefer to devote my neuronic resources to the cultivation of real vegetables on earth, without polluting and maintaining biodiversity ... This is already a vast program. I think Musk will be in prison before being on Mars - even if the USA is not Japan and the bandits are not imprisoned there ...
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by izentrop » 18/01/19, 10:22

Moindreffor wrote:
Christophe wrote:The micro algae it's 10 times better!
spirulina is the future : Mrgreen:
It is not an algae but a cyanobacterium, just like the "moon spit" or nostoc https://www.jardinier-amateur.fr/report ... -lune.html
I was intrigued by the presence of these blackish khaki gelatinous masses on the borders weeded by the municipal services with a roundup stroke. The mystery was solved by listening to Selosse :) .
It is not a mushroom, nor an alga, as its appearance might suggest, but a cyanobacterium of the family Nostocaceae. A pioneer species, it thrives on very poor and basic soil, especially where it does not compete with other species. Its preferred terrain makes it a very important component in the fight against soil erosion by wind and water.
Invisible in the macroscopic state in dry weather, nostoc can survive in this dehydrated form for months or even years. But in the hours following a rain, their metabolism develops very quickly, so much so that they were long believed to have fallen from the sky, hence their other name, spitting moon.
Image The Chinese loved it but no longer have the right to collect it in the Gobi desert because of the damage caused causing soil erosion.
Last edited by izentrop the 18 / 01 / 19, 10: 38, 4 edited once.
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by Did67 » 18/01/19, 10:29

Moindreffor wrote:
Christophe wrote:No kidding? Let's drop the plants for the space conquest!

The micro algae it's 10 times better!

spirulina is the future : Mrgreen:


10 times better than what ???

We’re talking about anything right now. Per unit area, bof bof ... ????

If you are a consumer: watch out for heavy metals, which they eat. And as we raise them with fertilizers, BE CAREFUL! We don't talk about it much! [The heavy metal content standards are of great concern; it is a question of tightening them severely on a European scale].

https://gourmet-spiruline.fr/histoires- ... ifiee.html

https://naturalathleteclub.com/blog/con ... uline-bio/

https://www.dihe.fr/blog-superaliments/ ... ourds.html
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by Adrien (ex-nico239) » 18/01/19, 11:45

Exnihiloest wrote:Finally a positive subject, it's nice!


I like your humor ... : Mrgreen:
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Re: Gardening on the moon and in space? Extraterrestrial agriculture




by Adrien (ex-nico239) » 18/01/19, 11:54

Did67 wrote:If you are a consumer: watch out for heavy metals, which they eat. And as we raise them with fertilizers, BE CAREFUL! We don't talk about it much! [The heavy metal content standards are of great concern; it is a question of tightening them severely on a European scale].


I eat the rose hips (we are in high season) of my land ... at least I know what I eat and it gives a lot of energy ... : Mrgreen:
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