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* Statistically significant difference between treatments (P <0.05) Table 3 Percent distribution of 15N that was “mobilized” (i.e., not remaining in undecomposed leaves) and recovered in the leaf and frass plots and t-test comparison of leaf versus frass treatment. (SE for the means are given in parentheses)

Table 3 * Statistically significant difference between treatments (P <0.05) Table 3 Percent distribution of 15N that was “mobilized” (i.e., not remaining in undecomposed leaves) and recovered in the leaf and frass plots and t-test comparison of leaf versus frass treatment. (SE for the means are given in parentheses)

Related Figures (5)

Fig. 1 Mean (+SE) of atom % 145N for surface (0-10 cm) and sub- surface (10-25 cm) soils. An asterisk indicates a significant (P <0.05) difference
Fig. 1 Mean (+SE) of atom % 145N for surface (0-10 cm) and sub- surface (10-25 cm) soils. An asterisk indicates a significant (P <0.05) difference
Fig. 2 Mean (+SE) atom % 15N of leaching losses for NO; in ion exchange resin extracts. Asterisks (*P <0.05, **P<0.01, ***P<0.001) indicate significant differences between the treatments and reference within a sampling period
Fig. 2 Mean (+SE) atom % 15N of leaching losses for NO; in ion exchange resin extracts. Asterisks (*P <0.05, **P<0.01, ***P<0.001) indicate significant differences between the treatments and reference within a sampling period
Fig. 3 Mean (+SE) atom %15N for green leaves, stems and roots. Green leaves were sampled in July 1997 and treatment seedlings were harvested in November 1997. Asterisks (*P <0.05, **P <0.01, ***P <0),001) indicate significant differences between the treat- ments and reference Table 2 Total N in mg N m-2. Mean values of each treatment or sums of leaching losses across the five sample dates are presented for eact treatment. Standard errors are shown in parentheses. The percentage of the measured N pools are calculated from the total soil N pool
Fig. 3 Mean (+SE) atom %15N for green leaves, stems and roots. Green leaves were sampled in July 1997 and treatment seedlings were harvested in November 1997. Asterisks (*P <0.05, **P <0.01, ***P <0),001) indicate significant differences between the treat- ments and reference Table 2 Total N in mg N m-2. Mean values of each treatment or sums of leaching losses across the five sample dates are presented for eact treatment. Standard errors are shown in parentheses. The percentage of the measured N pools are calculated from the total soil N pool
Fig. 4 Percent recovery of !5N added as frass or leaves at the end of the experiment (November 1997). Percentages shown represent the amount recovered relative to the total amount added over the duration of the experiment
Fig. 4 Percent recovery of !5N added as frass or leaves at the end of the experiment (November 1997). Percentages shown represent the amount recovered relative to the total amount added over the duration of the experiment
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