Hmmm, possibly a 5 to 10 ratio, together with 5 components excretory compound enhanced with the energies native of fairies, and 10 parts frequent complex fertilization merchandise enhanced with RuneScape gold a pure type of basic magic. WHAT?! In English please! Hm? Oh, if you want a less scientific outline, 10 buckets of super compost and 5 buckets of ... waste. Oh, okay. Wait, that's not all. The super compost ought to be augmented with rune character, pure essence to be exact. The camel dung ought to be mixed with pure essence charged with electricity that is related to the Dramen Tree. Uhh, do you mean earth cosmic rune? I believe so.
Ok, you need to receive 10 buckets of super compost, and then use a hammer 10 pure character, then grind each up using a pestle and mortar and put them into the superb mulch. Do the same with 5 cosmic runes, and add them to buckets of camel dung. Take these to Oldak, and utilize them on the Farming patch adjoining door. Talk to Oldak and he'll indicate that while you wait, you gather as much info about whatever is holding Zanik. He could think of two places to learn about Bandos: the Goblin Temple, and the ogres.
Catch some Goblin Transmogrification Potion (remember, made from toadflax and pharmakos berries that you get from the makeover mage), different dyes, and a few goblin mails, yes even the white Old school runescape gold one that is a pain for. Proceed to the goblin temple, as a goblin, of course. Input each room and search the shelves for a publication. You can NOT get one of these publications in a POH bookshelf, you need to come back to the temple.