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Table 6 Regression equations and statistics for change in residue C:N ratio over 112 days, where X = time in days after application

From: Decomposition, nitrogen and carbon mineralization from food and cover crop residues in the central plateau of Haiti

Residue species and placement Equation RMSEa R2
Maize, buried y = 35.04e−0.0040x + 20.94e−0.0579x 2.184 0.985
Maize, surface y = 40.56e−0.0020x + 14.66e−0.0586x 2.335 0.961
Sorghum sudangrass, buried y = 21.44e−0.0021x + 10.03e−0.3034x 1.209 0.969
Sorghum sudangrass, surface y = 31.27 − 0.2126x 1.411 0.944
Common bean, buried y = 21.88 + 32.50e−0.0283x 8.769 0.734
Common bean, surface y = 17.26 + 41.10e−0.0093x 2.235 0.966
Sunn hemp, buried y = 11.04e−0.0623x + 21.85e−0.0048x 7.306 0.670
Sunn hemp, surface y = 20.26e−0.0006x + 9.98e−0.3873x 1.418 0.939
  1. aRoot mean square error