Field purity

[Inotdead]

Is there any real way for a new player to get at least some levels of purity on their fields? Is there a step-by-step guide anywhere?
I kinda fail to comprehend, how could one get any humus above 0 at all with the current system.
Am I supposed to search for high purity granite, lime, clay and water (do these even exist?) and make pots, fill them with 0% humus, get a tree with hopefully 1%, use it to make a new bin (do nails have purity?), get 1% humus, plant a tree and so on until I reach 6% in 6 weeks (not guaranteed)?
Because if so, then one may as well develop an underground lab with 100 alchemist tables and hope that some of experiments turn out okay. Even considering the glass expenses this would be less time-consuming.

[Pjotr84]

Your first step towards better humus should be to feed worms foods out of the "any plant" category with some degree of purity .

[Inotdead]

Your first step towards better humus should be to feed worms foods out of the "any plant" category with some degree of purity .

how much of an impact do worms have? I could probably bring worms to said 6% with some foragebles, but what do I do after that? I've seen 95%+ crops and I wish to know how do I get there if at all.

[Pjotr84]

95% is virtually impossible under the current system. Anyone who has that kind of purity has stockpiled worms, humus and seeds from before it was changed. Worms change their purity rather slowly through feeding, but they in turn give the humus in your compost bins some purity.

[Erunildo]

I will quote Darkside,which made an easy step by step guide

If you want crops pure in element A then you must:

1. Build compost bin pure in element A
   
   1. Grow tree pure in element A
      
      1. Find clay pure in element A or water pure in element A to make clay with
      2. Find granite pure in element A
      3. Find lime pure in element A
      4. Create pot which will end up being pure in element A using an average of element A's value across the lime, granite and clay you use
      5. Place humus with highest value of element A you have into pot
      6. Place water pure in element A into pot
      7. Plant sapling with highest value of element A you have into pot
      8. Wait for ~2 days for sapling to either become a plant able tree or a shriveled useless stick depending on how high your natural philosophy and stocks & cultivars are
      9. If you are lucky and get plant-able tree, plant it into the ground and wait ~7 days until it is full grown so you can get good amount of wood from it (though I recommend you wait until you can get cuttings from that tree which will have a higher level of element A than what you first started with, and replant that)
   
   
2. Raise worms pure in element A
3. Place worms pure in element A into compost bin pure in element A and wait for humus to generate which will also be pure in element A (purity depending on complicated function of bin purity, worm purity and worm efficiency)
4. Prepare field with humus pure in element A
5. Sow seeds which you can find as high in element A as possible
6. Wait for [crop growth time] days until harvest
7. Hope the random number generator is kind and bumps your resulting harvest's element A value even higher
8. Repeat all the steps above for next minor incremental gain in element A purity

And of course you can quadruple you fun by doing all of the above with each of the other 3 elements as well!

[Inotdead]

That's pretty much how I imagined it. Wow. Guess I stick to 0 purity for now, thanks.

[Erunildo]

Yeah,it's probably better to work on raising your field tiers. And maybe farm a few trees as a side job.

[Tamasin]

what if i have some decent purity seeds- say 75% grain. can i get anywhere with this? what sort of purity will the crops have if i plant them with my dirty 0% humus? can they be used to improve purity of my crops in general at all?

[Inotdead]

what if i have some decent purity seeds- say 75% grain. can i get anywhere with this? what sort of purity will the crops have if i plant them with my dirty 0% humus? can they be used to improve purity of my crops in general at all?

my guess would be that they will drastically drop in purity once you plant them. but I'm not sure about that.

[Yourgrandmother]

what if i have some decent purity seeds- say 75% grain. can i get anywhere with this? what sort of purity will the crops have if i plant them with my dirty 0% humus? can they be used to improve purity of my crops in general at all?

0-1%

No I am not kidding.