I thought i would post up a few good natural/organic sources of nitrogen. You can usually buy these "raw" products at a local garden center.

Blood Meal:(fast release)
Made from dried animal blood, mostly cattle, and usually an N-P-K of 13-0-0.

Feather Meal:(medium/slow release)
Made from poultry waste, usually an N-P-K of 10-0-0.

Fish Meal:(fast release)
Made from remains of fish, usually an N-P-K of 10-0-0.

Seabird Guano:(fast release)
Made from droppings of seabirds, usually an N-P-K of 12-8-2.

Bat Guano:(fast release)
Made from the fresh dropping of bats, usually an N-P-K of 10-3-1.

Corn Weed Blocker:(slow release)
Made from Corn glutton, usually an N-P-K of 9-1-0.

NOTE: N-P-K values may vary by a couple points.
hoodrider Reviewed by hoodrider on . Sources of Organic/Natural Nitrogen I thought i would post up a few good natural/organic sources of nitrogen. You can usually buy these "raw" products at a local garden center. Blood Meal:(fast release) Made from dried animal blood, mostly cattle, and usually an N-P-K of 13-0-0. Feather Meal:(medium/slow release) Made from poultry waste, usually an N-P-K of 10-0-0. Fish Meal:(fast release) Made from remains of fish, usually an N-P-K of 10-0-0. Rating: 5