Today I received the results for my garden soil test, which show that I have only 5 ppm of nitrogen.
So my research (here, and elsewhere) has suggested that the best way to (organically) raise the nitrogen level is to add some blood meal. But how much blood meal do I need? The "Fertilizer recommendations" that came with my test results says:
You should apply your nitrogen at a rate of ¼ lb N per 100 sq. ft. You can divide this amount in half and apply half at planting and half a month later during the summer.
Then later it says:
To Calculate the Amount of Fertilizer to Use:
( % of nutrient in fertilizer ÷ 100) = Pounds fertilizer per 100 sq. ft.
But using that formula, if I had a theoretical fertilizer with 100% nitrogen, I would apply 1 lb per 100 sq. ft., or 4x the recommended amount above.
What is an accurate formula to use to determine how much (organic) nitrogen fertilizer I need to apply?
EDIT I live in Central Kansas, and will be growing a variety of vegetables.