Field Preping and Purity

[LackofCertainty]

Does humus purity used in preping a field affect the purity of plants from that field?

I noticed that humus purity seems to change the purity of "wild oats" you get from a field, but it doesn't seem to change my crops themselves. So is high purity humus needed for farming, or is it only useful for gardening?


P.S.
To clarify, I already have heard that fertilizer purity doesn't change crop purity, I'm specifically talking about field prep humus.

[winspear1]

AFAIK.. it doesn't matter.

[L33LEE]

No it does not.

The only reason to make purity humus is for grinding potted plant purity, like garlic, beaming sunflowers etc.

[LackofCertainty]

KK, thank you very much. Guess I can stop killing myself trying to keep all my fields loaded with good humus.

[robert]

field prep shouldnt effect crop purity as its not actually being used as a fertilizer in that regard. now if you are using it as a fertilizer i could see it effecting purity but the 2-5 humus field prep i cant see effecting a crop, as there are no crops currently planted when you do the prep.

[Ornery]

field prep shouldnt effect crop purity as its not actually being used as a fertilizer in that regard. now if you are using it as a fertilizer i could see it effecting purity but the 2-5 humus field prep i cant see effecting a crop, as there are no crops currently planted when you do the prep.

Fertilizer purity affecting crop purity was taken out about a month after Plymouth opened.