Fertilizers - artificial or organic? Farm Expert 2017 Guide

For the most part of the game, this will be a no-brainer for you - the only organic fertilizer is cesspit produced by livestock. If you don't breed any animals, you will have no source of an organic fertilizer.

However, if you do have livestock and you can use cesspit, go ahead and use it instead of artificial fertilizers. Cesspit and manure are a lot less acetifying and are a lot less expensive. What's more, manure spreaders are not that expensive. A gully emptier costs a bit more, but both of them can be used for many years.