Table 1 Regression equations based on the Olson (1963)14 exponential model to describe litter decomposition under different fertilizer treatments.

From: Nitrogen enrichment regulates straw decomposition and its associated microbial community in a double-rice cropping system

Treatments

Regression equation

Correlation coefficient (r2)

Decomposition rate (year−1)

Time for 50% decomposition (year)

Time for 95% decomposition (year)

Early-rice season

 N0

Y = 85.456e−3.753t

0.9307

3.753

0.784

1.398

 N9

Y = 86.180e−3.858t

0.9461

3.858

0.765

1.362

 N18

Y = 85.043e−3.673t

0.9400

3.673

0.800

1.427

 N27

Y = 85.800e−3.786t

0.9415

3.786

0.779

1.387

Late-rice season

 N0

Y = 80.662e−4.304t

0.9061

4.304

0.671

1.206

 N9

Y = 79.422e−4.232t

0.9034

4.232

0.678

1.222

 N18

Y = 79.668e−4.321t

0.9102

4.321

0.665

1.198

 N27

Y = 78.980e−4.208t

0.8896

4.208

0.681

1.228

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