Nausea potion and new uses for sulfur

We should can use sulfur spikes to brew a nausea potion. Also if you use 5 bonemeal and 1 sulfur spike you should be able to make fertilizer that you can put on the soil and any plant would grow twice as fast (but after 3 Minecraft days the fertilizer won't make more effect). And with  1 bonemeal, 2 sulfur spikes and 3 coals you should make gunpowder to be accessible in peaceful mode