True. Cats dislike the smell of citrus fruits. However, do not to put them on your garden because citrus peels are very acidic which is not good for the soil.
I watched a documentary about straw bale construction recently and I must say I was quite impressed. I'm wondering is it possible to use straw bales for insulation and what are the costs?
I have never heard about soil emitting a smell. You should probably contact an expert to determine the source of the smell which is also the best way to get rid of it.