I ran into this on a web site about growing Tomatoes. I imagine it smells horrid to cook for 30 minutes but it sounds like it would make the ca soluble. Thought I'd put it up for any one who wants to try.
To correct a calcium deficiency: bring about one gallon (about 4 liters) of water and a tablespoon (15 ml) of lemon juice to a boil. Add six tablespoons of bone meal to the water, stir well, cook covered for 30 minutes to help dissolve. Allow to cool. Solution may not be completely dissolved, that's okay. Feed each plant at leaves and roots one quart (about 1 liter) of solution. Repeat treatment a second time in three to five days. Bone meal is high in calcium and phosphorus.
To correct a calcium deficiency: bring about one gallon (about 4 liters) of water and a tablespoon (15 ml) of lemon juice to a boil. Add six tablespoons of bone meal to the water, stir well, cook covered for 30 minutes to help dissolve. Allow to cool. Solution may not be completely dissolved, that's okay. Feed each plant at leaves and roots one quart (about 1 liter) of solution. Repeat treatment a second time in three to five days. Bone meal is high in calcium and phosphorus.
