How to Fortify Fertilizers

Add fish emulsion to a seaweed fertilizer to fortify it. Seaweed and water when left together in a plastic trash can for two weeks will provide a thick, rich fertilizer. Adding fish emulsion will fortify it by adding a large helping of nitrogen into the mix. Fish emulsion is made by blending leftover fish parts and warm water.

Mix together dried coffee grounds and powdered eggshell for a fortified fertilizer rich in nitrogen and lime. Leftover coffee grounds need to be dried either on newspaper in the sun or on baking trays in a low oven for an hour. Blend any egg shells you have into a fine powder. Mix equal parts of coffee grounds and egg shells for a fortified fertilizer. Place on your vegetable beds and around your fruit trees to give them a boost in spring.

Add corn-gluten meal in the form of powder to your garden by mixing it with the topsoil. Follow the ratios for application as shown on the product label. Corn-gluten meal is a fertilizer rich in nitrogen, but also works well as an herbicide because it prevents weeds from growing. After sprinkling it over the soil, rake it over and water so the ground is wet but not soaking.

Grow green manure in your beds. Green manure plants grow fast and provide ground cover. They also reduce weeds over winter and improve the overall structure of the soil, providing additional nitrogen into the soil and absorbing nutrients that would otherwise be lost. When the green manure is tilled into the soil, the nutrients in the soil are replaced. Crimson clover and peas are ideal for this purpose, as they have a high nitrogen content. Green manure used in addition to a natural fertilizer will truly fortify it.