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Higher Education Press

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Total, Fertilizer-derived and soil-derived cumulative N2O and N2 emissions in the two soils. Error bars show the standard error of the means (n = 4). Different letters indicate significant differences in soil-derived N2 or N2O emissions at p < 0.05 among the Urea, Urea+DCD and Urea+Straw treatments. “ns” indicates not significant.

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Higher Education Press

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