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15N tracer uptake (Asteraceae)
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Description
Stable isotope tracer experiment using 15N-labeled fertilizer to quantify nitrogen uptake rates and allocation in plants growing under different soil treatments.
Typical Equipment
- 100-mm 11-gauge biopsy needles
- Cambridge Stable Isotopes ¹⁵NH₄-¹⁵NO₃
- Costech 4010 ECS
- IRMS Delta V Plus spectrometer
Output Measurements
- nitrogen uptake rate
- net uptake rate
- plant tissue 15N enrichment