superphosphate

/soo-per-fos-feyt/US // ˌsu pərˈfɒs feɪt //UK // (ˌsuːpəˈfɒsfeɪt) //

过磷酸钙,过磷酸酯,过磷酸钠,过磷酸盐

Definitions

n.名词 noun

1
Chemistry.
- : Also called acid phosphate. a mixture of calcium acid phosphate and calcium sulfate prepared by treating phosphate rock with sulfuric acid: used chiefly as a fertilizer.
- : Also called triple superphosphate. a mixture prepared with phosphoric acid and containing about 45 percent of soluble phosphates, used as a fertilizer.

Superphosphate makes dark-colored, thick-leaved, stocky (p. 419) plants.
Good results will also follow an application of bone meal or superphosphate at the rate of from 300 to 500 pounds per acre.
Copperas or blue stone, kainite and superphosphate are sometimes used for the same purpose.
Superphosphate, in light applications, has increased sod and cover crop growth.
When superphosphate is applied to the soil it is converted into an insoluble state.