Noun
An acid phosphate.
Source: Webster's dictionaryPhosphate rock remains a feedstock in the fertiliser industry, where it is treated with sulfuric acid to produce various " superphosphate " fertiliser products. Source: Internet
Other elements: calcium, magnesium, and sulfur Calcium is supplied as superphosphate or calcium ammonium nitrate solutions. Source: Internet
A mixture of single superphosphate and triple superphosphate is called double superphosphate. Source: Internet
The infertility of most of the soils has required heavy application by farmers of chemical fertilisers, particularly superphosphate, insecticides and herbicides. Source: Internet