Questions About IC2 Crops

I’ve read that 4 blocks of dirt beneath the farmland will give a bonus to fertilization. Is it relevant without use of fertilizers? What this bonus does exactly?

Does IC2 cables or other not-full blocks affect air quality for crops if they’re placed above them?


As far as I know yes 3 dirt blocks below affect an ic2 crop positively. As for Air Quality uh Imma gonna ask Speiger…

There you go:

Skylight Access: +2
8 Blocks around: +0.5 if it isn’t a crop or a non solid block.
Height: for every 15 blocks above sealevel gives +1 with up to 5.