Growing healthy plants that yield large numbers of flowers, fruits and vegetables requires the application of fertilizer. If you're growing an organic garden and do not want to use commercially prepared chemical fertilizers, you can make your own. Fish emulsion is high in nitrogen, which promotes the growth of healthy leaves and stems. Apply fish emulsion when the plants are small. This will encourage them to produce enough vegetative growth to support the production of their crops.
Chop fish waste so larger pieces are approximately the same size. You don't have to chop the large pieces down to the same size as the smaller ones.
Place fish waste into a large waterproof container with a secure lid.
Add approximately twice as much water as the volume of fish waste. Stir well. Replace the lid.
Allow the mixture to rot, which should take about 30 to 60 days.
Strain the solids by pouring the contents through a large sieve and decant the resulting liquid into the smaller container. This remaining liquid is the fish emulsion fertilizer.