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Table 3 Results of FGLS (groupwise heteroscedasticity + serial correlation)

From: Exploring the influencing factors of continuous crop residue supply: from the perspective of a sustainable and bioenergy-oriented crop cultivation

Variables Coefficient Z value
C − 0.642 − 0.77
°C 0.147** 3.24
°C2 − 0.004** − 2.17
TGP 0.672*** 3.51
PSC 0.009*** 4.91
PST − 0.035*** − 3.17
FS 0.404* 8.13
SDI 6.941*** 8.01
EP − 0.251*** − 4.03
EDL − 1.771*** − 6.59
Wald test P = 0.00
T 10
N 31
  1. ***, **, *Significant at 1%, 5%, and 10% levels, respectively