When your adding the required amounts of various elements to your soil, you do so by adding amendments which contain only a percentage of them. The following formulas are used to calculate the amount of ammendments needed in order to apply the propper amount of elements required by a soil test and remineralization recipe:
Sulfur from gypsum /.11
calcium from gypsum /.22
Phosphorus from 0-12-1 guano /.12
Calcium from calcitic line /.39
Magnesium from calcitic lime /.02
Magnesium from dolomite /.11
Calcium from dolomite /.22
Potash from potassium sulfate /.51
Potassium from kelp /12.5
Potasium frim alfalfa /2.5
Potassium in greensand /.03
Iron in greensand /.17
Sulfur from potassium sulfate /.17
Sodium from sea salt /.35
Boron from borax /.09
Iron from iron sulfate /.30
Sulfur from iron sulfate /.18
Copper from copper sulfate /.25
Sulfur from copper sulfate /.12
Zinc from zinc sulfate /.35
Sulfur from zinc sulfate /.17
Nitrogen from 12-10-2 guano /.12
Phosphorus from 12-10-2 guano /.10
Manganese from manganese sulfate /.32
Sulfur from manganese sulfate /.19
Sodium from kelp /.04
Calcium from kelp /.02
Nitrogen from 1-0-0 worm castings /.01
(Formula: divide the element percentage in the ammendment to figure out how much of the ammendment is needed to supply the soil test requirement and multiply the ammendment by the element percentage to figure out how much is in any given amount. Example: if you need 10 lbs of sulfur for your garden and you wish to get it with gypsum, then divide 10 lbs by .11 to get the amount of gypsum required to supply this 10 lbs of sulfur, in this case 90.9 lbs are needed. Don't forget to calculate the amount of calcium this 90.9 lbs of gypsum will add in addition to the sulfur, which is 20lbs. This is figured out by multiplying the amount of gypsum by .22 which is its percent of calcium.)
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