Finding Natural NPK

With all of the mysterious fertilizer fires and other related accidents happening right now, I wanted to compile ingredients for you to keep on hand for mixing up your own fertilizer at home. By no means is this the most comprehensive list but use it as a jumping off point.

Before you play the role of “mad scientist”, please get your soil tested. You can contact your local Ag office and they should be able to recommend a company, or your local hardware store may do it for free or cheap. Ideally, you will want to do these every 1-2 years to keep an eye on your levels.

Nitrogen Sources –

Alfalfa Meal
Comfrey
Bone & Blood Meal
Fish Emulsion
Human Urine
Coffee Grounds
Decaying Leaves
Rabbit Manure
Thoroughly Composted Manure (research Grazon contamination)
Cover Cropping (Alfalfa, Clover, Peas, Legumes, etc.)
NFT’s (Nitrogen Fixing Trees)


Potassium Sources –

Wood Ash
Banana Peels
Thoroughly Composed Manure (research Grazon contamination)
Kelp Meal
Alfalfa Meal
Composted Sheep Manure (research Grazon contamination)
Comfrey
Egg Shells
Greensand

Phosphorus Sources –

Bone Meal
Worm Compost
Human Urine
Egg Shells
Shellfish Fertilizer
Thoroughly Composted Manure (research Grazon contamination)
Dried Lemon Peel
Wheat Bran
Fish Guts
Kelp Meal