Table 1 Model results: coefficients of the independent variables.

From: Distinguishing anthropogenic and natural contributions to coproduction of national crop yields globally

H

Independent variables

Adjusted R2: 0.62

(n = 64 observations)

Standardized regression coefficientsa (Standard error)

 

Intercept

 − 0.10 (0.08)

 + 

Agricultural suitability

0.46 (0.17) **

 + 

Fertilizer use intensity

0.65 (0.14) ***

 + 

Net capital stock intensity

0.06 (0.12)

 + 

Manure use intensity

0.34 (0.10) **

 − 

Agricultural suitability:Fertilizer use intensity

 − 0.35 (0.29)

 − 

Agricultural suitability:Manure use intensity

 − 0.11 (0.21)

 + / − 

Agricultural suitability:Net capital stock intensity

 − 0.06 (0.26)

  1. Fertilizer use intensity and agricultural suitability are positively associated with yield.
  2. aSignificance levels: p < 0.1; *p < 0.05; **p < 0.01, ***p < 0.001.
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