Temporal Variation of N Isotopic Composition of Decomposing Legume Roots and Its Implications to N Cycling Estimates in Tracer Studies in Agroforestry Systems
Effect of 15N of residue on N uptake estimates (proportion of plant N derived from residue) in (a) the residue application experiment (RA), and (b) the full interaction experiment (FI). %NdfrR: calculated with total initial 15N of residue, and %NdfrS: calculated with simulated 15N of N released from residue (%NdfrS). Arrows indicate shoot harvesting in the FI experiment.
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