As much as I can I compost everything to give me eventually some rich compost; for that purpose I have two large black composter bins on the allotment. Apart from cooked food or meat I put everything there; not weeds though, they go on a separate pile and there they can rot. I add shredded paper and torn egg boxes to the bins as well.
It follows then that I don’t like to use chemicals as fertilisers. I have a large barrel of comfrey tea ready, use it diluted when I’m watering and my latest innovation is the liquid from my wormery.
The wormery is in my back garden and I put in any kitchen waste, the worms seem to get on with anything and everything and the end result is bottles of dark liquid and I use it the same way as I would the comfrey tea – diluted in my watering can.