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Short‐term soil respiration (Rsoil) in Automated Root Exudate System (ARES) subplots within main control plots, showing no immediate increase in Rsoil in subplots with root exudate solution (RE, yellow triangles) compared to procedural controls (CP, blue circles); measurements were taken immediately before and 15, 125, 280 and 460 min after the daily application of RE and CP solutions; means ± SE for n = 5 are given.
