the fertilizer in the wood science pack 2 (i think) has its item id misspelt, the item's item name is bob-fertiliser in bob's while the recipe in this mod has bob-fertilizer in it. Because of this, the bob's mods aren't able to be loaded as far as I can tell. Uh could you fix this? Please :)? It could also something on my end, I personally doubt it but still.

There were a few issues with bob's compatibility, all fixed in the newest release. I did a decent bit of testing to make sure it was all functional, but let me know if you run in to anything strange/unbalanced.