Commercial versus synthesized polymers for soil erosion control and growth of Chinese cabbage

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Table 1 Chemical properties of soil and treatments

Treatments	pH	EC^†	OM^‡	Avail. P	NH⁺₄-N	NO₃--N	Exchangeable cations
Treatments	pH	EC^†	OM^‡	Avail. P	NH⁺₄-N	NO₃--N	Ca²⁺	K⁺	Mg²⁺	Na⁺
		dS m^-1	%		mg kg^-1			cmol kg^-1
CK	7.1 a	0.021 ns^§	2.2 c	1129 ns	139 ns	20.4 b	4.3 ns	0.3 a	1.3 a	0.1 a
PAM	7.0 ab	0.022 ns	3.1 b	1349 ns	95 ns	20.9 b	4.0 ns	0.1 c	0.9 b	0.1 a
BP	6.9 b	0.031 ns	3.3 a	1226 ns	106 ns	31.9 a	4.1 ns	0.2 b	1.0 b	0.1 a

The same letters in table indicate no difference determined by the Tukey’s HSD test at a significance level of 0.05 (n = 3).
^† Electrical conductivity.
^‡ Organic matter.
^§ Not significant.