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this post was submitted on 25 Mar 2024
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It's not that infinite without a way to refresh protein, such as mining ammonia, eventually you run out of soil resources and crash. It's got a hard limit, so to speak.
urine is a fantastic nitrogen fertilizer
bonemeal for phosphorus
wood-ash for potassium.
Probably not concentrated enough to work on an industrial scale, but probably on smaller communal farms.
Yeah if you turn people who die into fertilizer and process all of their excrement you can probably sustain the fields they eat from. Can't argue with that.
I'd actually be totally fine with this.
I want to become del monte corn after I die, unironically.
i feel like you could just eat people at that point. That might do something, idk.
Nah unfortunately that causes various Neurological and Endocrinal disorders. It has to be cured and processed to a high degree, first.
damn, the human body already thought of that one. What a meta.
Moreso just a consequence of trying to consume a thing that is nearly identical to your own flesh.
circle of life
Nobody said anything about using dead people as fertiliser?
I did, what is the source of your confusion?
Lennybird didn't, you just ripped it out of the blue.
Bones come from animals, you know?
Yes, and?
Therefor it was established that composting humans was a potential solution.
https://en.m.wikipedia.org/wiki/Cattle
You were the first one in this conversation to imply that the bone meal would come from humans.
Yes, and?
Do you have an actual point or are you just trying to be annoying on purpose? If the latter is true, then please consider going outside.
Pot calls the kettle black, you're the one in here making irreverent statements while the rest of us have a perfectly normal conversation about making grandparents into tomato substrate.
100% perfectly normal
Oops, soylent green path.
And that's why we have been dumping our and our livestock's shit there for thousands of years.
That alone is still not infinite. When you eat food you're taking the nutrients that you need out of it and excreting what is left. So even if all of your shit went directly to manure then you're still putting in less than you took out.
The energy input is the sun, and most of the calories come from the air (carbon dioxide). Given so much external input, harvesting from a plot without reducing soil fertility is totally possible. With nitrogen-fixing crops (soybeans being the poster child), even the nitrogen fertilizer comes from the air.
Where do all those 'wasted' atoms go?
The plants use energy from the sun to turn carbon dioxide from the air into edible calories. When our animal bodies "burn" the food we eat, that turns it back to carbon dioxide, which we exhale.
not a scientist here, but i imagine it's a combination of different forms of energy/material and how different organisms utilize them. Plus the basic fact that nothing is ever perfect. We consume food, a lot of those nutrients are burnt for energy. Our brain consumes a significant majority of what we eat. Stuff has to go somewhere for things to happen.
That's like counting tigers in the zoo as tigers in the wild. Dust from homes gets put in landfills, corpses get burnt or buried in boxes, human excrement gets treated and reintroduced to streams. It's not finding its way back to the fields in such a way that it's 100% efficient, not even close.
Not all the matter in farming fields come from fertilizer. A lot of it comes from CO2 in the air, which will eventually go into some plant that we can eat. Also, all those ways that matter is lost, therefore not being 100% efficient doesn't make matter disappear. Burning turns it into CO2 -> it will reach a plant. Excrements going into water streams -> plants will pick them up, or ocean wildlife will pick them up. Buried corpses -> microbes and plants will pick them up. The only way to "lose" matter is for it to leave the atmosphere into space or to be buried so deep that no life can reach it.
The atmosphere loses matter at a rate that is (presumably) not affected by human actions.
Matter buried too deep is compensated by matter coming out from volcanic eruptions.
As long as the earth's core is hot enough for volcanic activity and the sun doesn't run out of fuel, the cycle keeps going.
Thanks for letting me know you suck at chemistry. I appreciate you.
I appreciate your comment, such good feedback. I don't know what I said that hurt you but I'm sorry.
Legumes like lentils capture air nitrogen.
Was wondering, do Orchids do this, too? They have "air roots" and basically subsist off zero substrate.
According to this article
It's probably my favorite plant. Hardy as hell despite a bad reputation for being picky. People don't realize they just go dormant until Spring.
Bacteria take it out of the atmosphere slowly. It's a certain rate per land, and due to the coastline paradox we know that the area of land is infinite.