This works because good compost is full of microbial life forms that will readily make the nutrients in your organic fertilizers available to plants as they need it. OFF GRID with DOUG and STACY. Diy Fertilisers Feed Your Garden Grow Healthy Plants Diy Fertilizer Plant Food Diy Healthy Plants With 3 or 4 banana peels for each liter of water will suffice. How to make homemade nitrogen fertilizer . Check Out Nitrogen Fertilizer On eBay. Most plants need fertilizer rich in nitrogen to grow. Ammonia is made of hydrogen and nitrogen and plants thrive on nitrogen. Coffee grounds can be mixed directly into the soil or added to a pre-established compost pile. From Everything To The Very Thing. Dry your banana peels as well as your eggshells after washing them clean. Check Out Nitrogen Fertilizer On eBay. To make some banana peelings homemade fertilizer you will need banana peels a tablespoon of Epsom salt for every 4 peelings 3 eggshells and water. Measure out a half-cup