Re: Compost Bin Purity: Oh crap, how do earthworms work?

[Potjeh]

Just to make sure, are your boards and worms pure in the same elements?

[Tamasin]

yes they're both lead

[lachlaan]

I've been speculating for a while that bin purity =/= board purity, and that the actual bin purity is more along the lines of the resulting humus when no worms are inside the bin. So (board_element + 25*2.5)/3.5 are the resulting elements of the bin, you can then use those to calculate the actual purity and multiplier and try to make sense of the results.
If i'm right though, what this means is that the highest any element can go on a bin is 46.42 if you use 100% pure boards.

[DemonEyes]

Ah maybe this is a fault in the maths, as I believe that 100% purity must be achievable (in the end), changing that formula to (board_element+25)*2.5/3.5 would give you approx 89.2 Humus (with 100 boards) and the other 10% being made up by the worms. Could this be the case?

[martinuzz]

I've been speculating for a while that bin purity =/= board purity, and that the actual bin purity is more along the lines of the resulting humus when no worms are inside the bin. So (board_element + 25*2.5)/3.5 are the resulting elements of the bin, you can then use those to calculate the actual purity and multiplier and try to make sense of the results.
If i'm right though, what this means is that the highest any element can go on a bin is 46.42 if you use 100% pure boards.

Nope, it can definitly go higher. My current salt bin makes humus with 51.14 element value already.

Here's the exact data:
Wood purity: 17% (56.34/14.58/16.91/12.18)
p1 76.22/5.89/8.13/9.78
p2 75.70/5.63/4.97/13.70
p3 75.86/6.55/8.20/9.39
p4 75.25/6.72/8.99/9.04
p5 74.78/7.54/7.73/9.96
p6 74.26/6.95/8.58/10.21
w1 97.66/1.11/0.90/0.33
humus: 51.14/16.01/17.33/15.54

I have a idea on a formula, but I need to wait until this compost bin produces another humus, without any worms, to check if it rings true.

[Tamasin]

may i ask how pure are the pots you're using to grow those 17% pure trees?

[martinuzz]

just 3 or 4%, they're really crap. Need better salt granite and lime.

[Tamasin]

oh! did you have legacy humus or anything? can i one day grow such awesome trees too?

[martinuzz]

Okay, so my formula got close, but it's not exact yet. I'm sure I'm on to something though.

I used this hypothesis:
I suspect the formula for the base elemental values for the compost bin is somewhere along these lines:
element_base= crt(wood element*25*25), the two 25s stemming from substituted 0% purity for the iron nails, as well as the wood nails.
Problem is still, the four element_base values do not add up to 100%. Now I'm no real math wizard, but that could be solved by taking the above values, and dividing them by their sum *100%

using the wood purity from the bin I posted earlier, this should result in a compost bin elemental composition of 34.40/21.92/23.03/20.65


Unfortunatly, the humus from the bin without worms, in reality, came out as 32.13/22.63/23.16/22.08

I tried toying around with weight a bit.
Tried element_base= y-root(wood element^a * 25^b), with y = a+b
for a= 2.5, b= 3.5, for a=1, b=3, a=1, b=2.5

a=1, b=2.5 came pretty close to the real result.

Could someone try to solve a and b for:
y-root(56.34^a * 25^b)/ (y-root(56^a * 25^b)+ y-root(14.58^a * 25^b)+ y-root(16.91^a * 25 ^b)+ y-root(12.18^a * 25^b) = 32.13%
with y = a + b

my math's too rusty.

oh! did you have legacy humus or anything? can i one day grow such awesome trees too?

Used 91% pure humus.
planted 16% saplings on 94% humus for the next generation. New tree is 19%

[mdm20]

Good luck getting wood purity above 10% w/o legacy humus. After 2+ months, I'm up to 3% trees, starting with 0% humus. Because it's a closed loop, it's difficult to increase things. Alchemy helps some, but not a lot.