Yeah one atmosphere, but with the same atmospheric mix as what is on Mars. I was trying to simulate compressing the Martian atmosphere into a pressurised and thermally insulated greenhouse.
My enclosure is only good down to about 0.8 atmospheres, below that the big rubber seal around the door starts to leak. The vacuum pump is used when mixing the atmospheric composition.
Figure the first martian plants would live in a pressurised, insulated greenhouse. There are some neat passively heated designs around.
I think my next experiments will be with legumes trying to fix nitrogen and improve the soil. The way I see it, pressure, warmth and light are all problems for which we have existing solutions. The real question is can we get stuff to grow without importing tons of fertiliser?
My enclosure is only good down to about 0.8 atmospheres, below that the big rubber seal around the door starts to leak. The vacuum pump is used when mixing the atmospheric composition.
Figure the first martian plants would live in a pressurised, insulated greenhouse. There are some neat passively heated designs around.
I think my next experiments will be with legumes trying to fix nitrogen and improve the soil. The way I see it, pressure, warmth and light are all problems for which we have existing solutions. The real question is can we get stuff to grow without importing tons of fertiliser?