TABLE 1.

Physicochemical properties and nutrient content of the soil samples under different treatments.

		Soil physicochemical properties and nutrient content
	Parameter 1	pH value	EC (μs⋅cm–1)	AK (mg⋅g–1)	TK (mg⋅g–1)
Treatment	CK	5.180 b	47.035 c	0.151 c	20.800 b
	SFC	6.110 a	131.775 b	0.179 a	16.193 c
	RSD	6.123 a	159.025 a	0.167 b	21.685 a
	Parameter 2	ANa (mg⋅g–1)	AMg (mg⋅g–1)	ACa (mg⋅g–1)	AMn (mg⋅g–1)
Treatment	CK	0.129 b	0.477 a	1.037 a	0.061 b
	SFC	0.136 a	0.482 a	0.969 b	0.084 a
	RSD	0.128 b	0.487 a	0.942 c	0.061 b
	Parameter 3	AFe (mg⋅g–1)	ACu (mg⋅g–1)	AZn (mg⋅g–1)	ASr (mg⋅g–1)
Treatment	CK	0.353 b	0.004 b	0.008 b	0.021 a
	SFC	0.407 a	0.004 b	0.010 a	0.019 b
	RSD	0.402 a	0.005 a	0.010 a	0.018 c
	Parameter 4	TNa (mg⋅g–1)	TMg (mg⋅g–1)	TCa (mg⋅g–1)	TMn (mg⋅g–1)
Treatment	CK	3.615 c	1.031 b	0.664 b	0.595 a
	SFC	4.315 a	0.356 c	0.412 c	0.477 c
	RSD	4.145 b	1.103 a	0.715 a	0.544 b
	Parameter 5	TFe (mg⋅g–1)	TCu (mg⋅g–1)	TZn (mg⋅g–1)	TSr (mg⋅g–1)
Treatment	CK	14.500 c	0.019 c	0.062 c	0.019 b
	SFC	22.155 a	0.020 b	0.092 a	0.009 c
	RSD	15.015 b	0.023 a	0.081 b	0.019 a

Data in the table represent three repeated means. There were significant differences between different letters in different treatments (p < 0.05).