Comparison of the Effects of Polyacrylamide and Sodium Carboxymethylcellulose Application on Soil Water Infiltration in Sandy Loam Soils

Table 1

Influence of PAM and CMC application rates on infiltration characteristics.

Treatment	Application rate
CK	0 g/kg	1.327	0.511	0.99
PAM	1 g/kg	1.625	0.468	0.99
	2 g/kg	1.849	0.437	0.99
	3 g/kg	1.624	0.427	0.99
	4 g/kg	1.955	0.371	0.99
	—			—
CMC	0.2 g/kg	1.354	0.458	0.99
	0.4 g/kg	1.971	0.370	0.99
	0.6 g/kg	2.229	0.309	0.99
	0.8 g/kg	1.958	0.311	0.99
	—			—

Note. is the mean value of the 4 fitted coefficients of and .