The best fertilizers made at home is from a compost pile. To make a compost pile pick area out of sun that you can keep moist. Add both brown (old) and green yard clipping and kitchen scraps. Turn the pile 1-2 times a week, add water if it dried up. Do not add animal waste, anything with fats, or weeds that have seeds. It take about 30 days after last fresh stuff was added for the compost to be ready to use.