How to Apply Manganese Sulfate to Plants

Foliar Application

• 1

  Water the plants slowly and deeply at least one week before applying the manganese sulfate.

• 2

  Add the required amount of water to the sprayer's tank. Add the manganese sulfate, swirling the tank as you do so to mix it with the water.

• 3

  Spray the foliage thoroughly, until the product drips from the plant, unless the label specifies otherwise.

Soil Application

• 4

  Water the plant deeply the week before applying the manganese sulfate. The product should never be applied to a plant that is heat or drought stressed.

• 5

  Add the manganese sulfate granules to the spreader. Apply it to the soil beneath the tree or plant, according to the rate listed in the instructions. A general rule of thumb for small palm trees is to apply 1/2 pound per tree. Large palms require 3 to 6 pounds.

• 6

  Use a rake to spread the manganese sulfate out to the dripline. Water the application area, to a depth of 6 inches, immediately after applying.

• 7

  Wash off any granules that land on the plant's foliage.