Effect of Phosphogypsum Amendment on Chemical Properties of Sodic Soils at Different Incubation Periods

Table 4

Some selected chemical properties of sodic soils after the leaching of PG amended soils.

GR (%)	pH	S-SO4^−2	Avail. P	Na	K	Ca	Mg	ESP %
		mg·kg^−1		cmolc·kg^−1
0	9.35^a	12.23^c	7.54^e	14.06^a	2.33	21.85^c	1.23^ab	35.60^a
50	8.47^b	13.56^c	12.33^d	10.17^b	2.22	24.79^bc	1.40^ab	26.37^b
100	7.87^c	68.23^b	16.44^c	5.88^c	2.19	25.29^b	1.14^b	17.15^c
150	7.80^c	71.89^ab	22.75^b	4.49^cd	2.11	28.31^a	1.98^a	12.13^d
200	7.28^d	78.03^a	28.52^a	3.23^d	2.04	30.33^a	1.53^ab	9.38^d
LSD	0.34	6.18	2.28	1.43	ns	2.95	0.78	3.31
CV	2.29	4.93	7.16	10.45	7.96	6.22	29.51	9.05

ns indicates not significant at .