Table 1 Comparison of model fit indices with and without the inclusion of mineralizable C as an exogenous predictor variable of relative yield.

From: Improved soil biological health increases corn grain yield in N fertilized systems across the Corn Belt

 

N responsiveness

N fertilizer rate

With

Without

With

Without

CFIa

0.416

0.911

0.800

0.995

SRMRWb

0.197

0.079

0.148

0.028

SRMRBc

0.028

0.028

0.009

0.010

RMSEAd

0.308

0.162

0.219

0.052

AICe

7635.1

6013.0

6363.4

3821.0

  1. aCFI = comparative fit index; bSRMRW = standardized root mean square residual within site; cSRMRB = standardized root mean square residual between sites; dRMSEA = root mean square error of approximation; eAIC = Akaike Information Criteria.
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