Which isotope is used to identity efficiency rates of organic and inorganic fertilizers?

نامیاتی اور غیر نامیاتی کھادوں کی کارکردگی کی شرح کی شناخت کے لیے کون سا آئسوٹوپ استعمال کیا جاتا ہے؟

Phosphorus - 32

Carbon - 14

Lead - 210

Nitrogen - 15

Phosphorus-32 is used to identify the efficiency rates of organic and inorganic fertilizers.
It is a radioactive isotope that helps track the uptake and utilization of phosphorus by plants.