Effect of Continuous Agriculture of Grassland Soils of the Argentine Rolling Pampa on Soil Organic Carbon and Nitrogen

Table 2

P/PET	RI
[0.5; 0.6)	0.5
[0.6; 0.7)	0.6
[0.7; 0.8)	0.7
[0.8; 0.9)	0.8
[0.9; 1.0)	0.9
≥1	1