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Joined 1 year ago
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Cake day: July 29th, 2023

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  • Great question (and we are reaching the outside edge of my knowledge here). Something like 3-5% of carbon in plants is taken up from the soil by plant roots. I don’t fully understand the mechanism, but the organic carbon percentage is an important competent in the calculation of how much artificial nitrogen a crop is going to need, so I guess it’s probably some biochemical process for making the nitrogen available.

    The organic carbon percentage is closely watched by farmers and is something of an indication of soil health. ie if your crop rotation is reducing the OC% over time then you probably need to reconsider it. It’s one of the reasons burning crop stubbles is a much rarer practice now.


  • Hay is cut from any sort of cereal plant early in it’s lifecycle, specifically before the plant starts concentrating it’s energy into the seeds. At this stage the plant stalk is sweeter (even to a human - give it a bite). After flowering, the plant is concentrating it’s energy into the seeds. By the time it’s fully done this (which takes a number of weeks), there is very little protein in the stalk, and it’s far less palatable (or nutritious) to animals. The plant stalk is now essentially ‘straw’.

    Commercial hay can be mowed from a meadow (in Australia usually ryegrass) in which case it will have all sorts mixed in, or from crops intended for making good hay (in Australia usually oats or wheat). Commercial straw (which has a tiny market) is cut after the grain has been harvested from the top of the plant. In commercial broadacre cropping in poor soil areas (the bulk of Australia’s grain areas) it’s usually better economics to keep your crop residue including straw since the cost to replace the carbon would be higher that what you’d get for the straw after the cost of harvesting it.

    Source: I play a lot of Minecraft






  • Yes, a few. Signal (daily use), LetsEncrypt & Certbot (EFF). It’s not enough.

    One day I decided I’d spend $x every January (when I do all my other donations) on open source stuff I depend on, and roughly in the proportions I depend on them. It quickly became impossible - I can’t just fund Debian (which I use a lot of in VMs), I’d need to think of all their dependencies, same with NGINX, Node etc etc. The mind boggles.

    I need something like a Spotify subscription for open source to assuage my guilt of the great value I extract for my personal use of open source.












  • thirdBreakfast@lemmy.worldtoLinux@lemmy.mlyour favorite homelab applications
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    7 months ago
    Infrastructure:
    • Proxmox VE - everything’s virtualised on Debian, mostly in docker inside LXC’s for neat backup/restore and moving between nodes
    • NGINX Proxy Manager - in front of most of my homelab services so they have https certificates
    • Tailscale - access everything, everywhere, including on phone, securely
    • Uptime Kuma - monitoring, with ntfy notifications
    • apt cacher NG - unnecessary caching of apt updates
    Apps:
    Currently in testing on the dev server:
    • neko - virtualised browser. Been experimenting with this in a container with a VPN for really simple secure browsing - ie launch it, do your online banking and then destroy the container.
    • Dashy - I go through periods of wanting a pretty home page with all my services, set it all up, then fail to actually use it and eventually delete it, then hear about another cool one…
    • Sharry - securish file sharing. I don’t love just emailing my accounts off to the accountant.
    • LimeSurvey - survey software (like Survey Monkey) - just something I’m testing for work
    • Omada controller - I’ve got a TP-Link switch and WAP that don’t really need centrally controlled, but you know, can be.
    • A couple of development environment LXCs I use VS Code in

    I still have not landed on a music system. I’ve put some of my library on Jellyfin, and tried a couple of apps with, but haven’t hit on a good combination yet. [edit:formatting}


  • Yes, in a shallow tourist mine in Australia. Apparently coal starts to flake easily once it’s been exposed to air for a bit, so they kept a big chunk in a large jar of water that you could take out and handle. It felt like a light wet rock.

    The sample, and the coal at the workface of the mine was stereotypicaly black. We wore hats with lights on, and when we emerged back out to the daylight I had an overwhelming urge to speak in a Monty Python type Yorkshire accent and go home and have my back scrubbed clean of the coal dust by my swarthy tired looking wife while I sat in a tub in front of the fire in the kitchen and our urchins played in the street.

    I don’t want to give the impression I’m a big fossil fuel tourist, but I’ve also seen blobs of crude oil on beaches near Mediterranean sea oil terminals.

    Sadly, I didn’t try to set fire to them on either of these occasions, which I now regret.