The P2O5 in all fertilisers comes from
A. DAP
B. Sulphur
C. Phosphate rock
D. Electricity
Answer: Option C
Solution(By Examveda Team)
The P2O5 in all fertilizers comes from Phosphate rock.Phosphate rock is the primary source of phosphorus (P) and the main raw material for phosphate fertilizers.
Phosphate ore is extracted from sedimentary deposits (85% of world production) and magmatic deposits. Phosphate ore grades range between 2% and 35% phosphorus pentoxide (P2O5).
Related Questions on Plant Pathology
Which photosynthetic bacteria possess both PS I and PS II?
A. Purple sulphur bacteria
B. Cyanobacteria
C. Purple nonsulphur bacteria
D. Green sulphur bacteria
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