Add nitrogenous compounds. This includes cut grass, raw peelings from vegetables, coffee grounds, diluted urine, manure, and weeds. Follow this up by adding carbon compounds such as cardboard, dead leaves, cereal boxes, and hedge clippings. With a garden fork (or something similar) mix the fast-rotting nitrogenous compounds with the slow-rotting brown materials. This adds oxygen to the mix and helps speed up the decomposition process.
To aid this process further, make sure that everything is cut into small pieces, and remember to continue adding water as you fill up the compost heap.
