I need bone meal to fasten the growth of trees because I live in a survival island. I have grown many crops and what crops should I put in the composter to earn bone meal effectively?


The wiki lists all the things you can put into a composter and their probability to increase the fill level inside here (archive). Carrots, beetroot, wheat, potatoes, pumpkins and melons each have a 65% chance, but cooked potatoes have an 85% chance to increase the level. Melon slices have a 50% chance, so putting in full melons isn't worth it. It's also very easy to build a cactus farm, cacti have a 50% chance as well.

But I would not recommend using a composter to get bonemeal. If you build a mob farm, you get many more useful resources (bones, gunpowder, string, ender pearls, occasionally redstone, bottles, glowstone, …, if manual killing also weapons and armour, …) and it runs without any manual activity (you just have to be within 128 blocks) and without needing to sacrifice your crops. In my most active Survival world I almost filled two double chests with bone blocks, just from standing at a skeleton spawner farm for XP.
Of course this does not work if you're playing in "Peaceful" difficulty.

  • I do not have resources to create mob farm and I never go out at night – Max Chan Oct 15 '19 at 13:55
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    How can you not have the resources for a mob farm? In the simplest case you just need solid blocks and trapdoors. – Fabian Röling Oct 15 '19 at 17:55

A miniature mob Farm would consist of nothing more than maybe 4-6 stacks of stone, a few redstone materials as well as maybe half a stack of iron. (So definetly in your budget)

You would just build one spawning platform over the ocean which gets flushed with water in regular intervalls, triggered by a a clock of your choosing ( hopper clock for example). Mobs fall into a permantly flushed field and get pushed onto a single magma block und which you position your hopper minecart. This is definetly not the best farm but it works fine and is scalable by increasing the number of plattforms.

Do not forget to build a roof over the plattform which needs to consist of lower half slabs

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