Look what I Found!

I was going through my garden shed looking for stuff that might help my plants and i come accross these 7 tiny glass bottles witht he dripper things in them and they are marked: 2 marked nitrogen, 2 phosphorus, 2 lime and 1 potash 7. Now i know that nitrogen and phosphorus will help my plants but i have no clue what potash 7 and lime are so could anyopne help me there? Oh and could any1 tell me how much of the stuff to add to water? Thanx.

potash = potassium the third main ingredient of fertilizers

limestone or lime is used when the soil is too acidic as it is alkaline

Ah ok thanks. I just found another potash one but it is potash 6 not potash 7. How much of these thngs do i add to water?