Abstract
The total rare earth content in superphosphate produced by the sulphuric acid treatment of Kola apatites is ∼ 2.6 mg/g. The amount of rare earths (in forms usable by plants) transferred into the soil solution when 300 kg fertilizer/ha per year is applied has been evaluated to be 30–170 g/ha per year. A long-term use of such a superphosphate leads to a statistically significant increase of the content of the rare earths in the cultivated soils.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
