Table 2.

Pearson correlation coefficient between grain yield and number of root nodules, nodule dry weight, leaf nitrogen content, soil nitrogen content, and leaf area index.

Season	Nodules#		Nodule dry weight		Leaf N content		Soil N content		Leaf area index
	Post-pasture area	Post-soybean crop area	Post-pasture area	Post-soybean crop area	Post-pasture area	Post-soybean crop area	Post-pasture area	Post-soybean crop area	Post-pasture area	Post-soybean crop area
2015/2016	0.11ns	0.24ns	0.06ns	0.29**	0.68*	0.009ns	—	—	—	—
2016/2017	0.29**	0.27**	0.19ns	0.35*	0.64*	−0.33*	0.69*	−0.48*	0.56*	−0.48*
2017/2018	−0.20ns	0.25**	−0.42*	0.53*	0.66*	−0.26**	0.63*	−0.57*	0.62*	−0.57*

*significant at 1%; **significant at 5%; ns = not significant.