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Fish Emulsion Liquid Fertilizer


High in nitrogen, soluble phosphorus and potassium, fish emulsion is a great way to use inedible parts of freshly caught fish to feed your garden. Your fresh fish must first be composted.


You Will Need:

  • 1 pound fresh fish waste (inedible parts)
  • 2 pounds of leaves, straw or sawdust
  • 1 ounce of unsulfured molasses
  • 5 gallons of water
  • Qty. (2) 5 gallon buckets with lids
  • Nylon stocking or burlap sack
  • Strainer, cheesecloth, or fine sieve
  • Goggles for eye protection
  • Rubber gloves for skin protection
  • PreGro Plant Sprayer

Making the Compost

When handling compost, always make sure to protect your eyes and skin. Put on your protective eyewear and rubber gloves. Place your fish parts in a 5-gallon bucket then add leaves, straw, or sawdust. Add at least 1 ounce of unsulfured molasses to the bucket to help minimize odor. Secure the lid and let all these ingredients decompose for 2 weeks. Make sure to get your protective gear on every 2 days so you can open the bucket to stir the mixture. The compost needs to be aerated every 2 days; stirring will provide air circulation to support the composting process. After 2 weeks, your fish compost should be ready to be made into liquid fertilizer.

 

Making the Fish Emulsion Liquid Fertilizer

Put on your protective eyewear and rubber gloves. Then put the fish compost into a nylon stocking or burlap sack, tying off the ends to make sure the compost does not leak out. Put 1 ounce of unsulfured molasses into a 5-gallon bucket, then pour two and a half gallons of water into the bucket. Place the sack of fish compost into the bucket and secure the lid. Allow the droppings to steep in the liquid for 1 to 2 weeks, giving it ample time to ferment.

 

Once the fermenting period is over, put on your protective gear, open the bucket, and remove the nylon stocking or burlap sack. Use a strainer, cheesecloth, or fine sieve to make sure any solids that might be in the liquid are removed. Remove 9 ounces of this fish emulsion liquid fertilizer and combine with 9 ounces of fresh water, diluting the solution in a 1-to-1 ratio. Pour this solution into the easy-to-fill glass container. Never shake the PreGro Plant Sprayer when the glass container is attached to the sprayer. The PreGro Plant Sprayer utilizes aerosol technology, but does not contain CFCs. For optimal spray, hold sprayer between a 90 degree angle and a 45 degree angle.

 

Important Tips:

  • Test your homemade liquid fertilizer on a single plant to make sure the solution does not have adverse effects.
  • Spray your plants in the early morning or evening, focusing the spray near the base of the plant and wetting the soil with the liquid fertilizer.

The PreGro Plant Sprayer

Atomizes up to 18 oz., which covers up to 120 square feet.

Easy to control, this portable hand-held garden sprayer enables you to deliver a continuous and uniform spray to only those plants most affected by unwanted pests.