Table 1. Regression models of the wheat residual mass and incubation time.

Treatments	y = y0(1−a·e-kt)
	y0	a	k	R2
Aerobic condition	36.71	66.17	0.022	0.96
Anaerobic condition	38.55	65.2	0.014	0.98

Note: y is the percentage of the initial mass remaining at time t (months); y₀ is the asymptotic value when time is ∞, a is the percentage of the initial mass of material subject to loss; k is the decomposition rate constant calculated by the least-squares method of fitting the model (d^-1); t is the incubation time (months); and R² is a correlation coefficient.