Had a look at Sulphate and thought that some of it would fit in here nicely.
Supplies of Sulphur (Elemental or Sulphate)
Plants take up sulphur in the sulphate (SO4) form. The sulphate form is water soluble, and being an anion, is readily leachable. The elemental form of sulphur needs to be broken down into the sulphate form before becoming available to the plant.
Below taken from "WikiDiff"
Sulfate is a related term of sulfur.
As nouns the difference between sulfur and sulfate is that sulfur is (uncountable) a chemical element (symbol s) with an atomic number of 16 while sulfate is (organic chemistry) any ester of sulfuric acid.
As verbs the difference between sulfur and sulfate is that sulfur is to treat with sulfur, or a sulfur compound, especially to preserve or to counter agricultural pests while sulfate is (chemistry) to treat something with sulfuric acid, a sulfate, or with sulfur dioxide.
As a adjective sulfur is of a yellowish green colour, like that of sulfur.
From Extoxnet (Extension Toxicology Network)
Copper sulfate is a fungicide used to control bacterial and fungal diseases of fruit, vegetable, nut and field crops. Some of the diseases that are controlled by this fungicide include mildew, leaf spots, blights and apple scab. It is used in combination with lime and water as a protective fungicide, referred to as Bordeaux mixture, for leaf application and seed treatment. It is also used as an algaecide, an herbicide in irrigation and municipal water treatment systems, and as a molluscicide, a material used to repel and kill slugs and snails. Copper sulfate is a naturally-occurring inorganic salt and copper is an essential trace element in plant and animal nutrition (5, 6, 7, 13, 16). It is available in the following formulations: dusts, wettable powders, and fluid concentrates (17).
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