Can you use milk to add calcium to soil?

Online Answer
Milk is a good source of calcium, not only for humans, but for plants as well. ... The microbes that feed on the fertilizer components of milk are also beneficial to the soil. Like us, plants use calcium for growth. A lack of calcium is indicated when plants look stunted and don't grow to their full potential.
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Adding eggshells to the compost is more about pH control than plant nutrition. Garden centers sell fertilizer specifically for tomatoes that contain calcium. ... Adding too much calcium to your soil could kill your plants because it raised the soil pH to levels that plants cannot stand.
Fortified cereals such as Total, Raisin Bran, Corn Flakes (They have a lot of calcium in one serving.).
The reaction of sulfuric acid with calcium metal produces a coating of calcium sulfate (CaSO4) on the metal. Since the calcium sulfate is insoluble in water, the coating acts as a protective layer thus preventing further attack on the metal by the acid..
Sources of Calcium for Tomatoes Natural sources of calcium include crushed eggshells and shell meal, the ground shells of marine animals. You can buy shell meal at nurseries or garden stores..
Organic calcium sources include dolomite lime, calcite, ground oyster shell (oyster shell flour), and crushed eggshells. Cheap and readily available source of Ca and Magnesium (Mg) in acidic soils. Do not use if soil Mg levels are adequate or excessive, or plant toxicity may result..