Table 6 Effects of treatment on distribution of organic and inorganic P fractions (mg kg⁻¹) (mean ± (Sd)) in soil after plant harvesting.

Ca2-P

Control

2.25 ± (0.19)ⁱ

3.2 ± (0.39)ⁱ

3.36 ± (0.55)ⁱ

2.67 ± (0.38)ⁱ

3.81 ± (0.16)ⁱ

Ap

16.76 ± (1.85)^h

29.33 ± (2.39)^e

28.40 ± (1.42)^ef

19.99 ± (1.99)^g

25.02 ± (1.96)^f

Ap-Z

34.18 ± (1.58)^d

40.47 ± (1.75)^ab

42.18 ± (1.91)^a

36.2 ± (1.92)^cd

40.52 ± (2.02)^ab

Ap-M

33.28 ± (2.28)^d

38.80 ± (1.03)^bc

35.5 ± (2.00)^cd

35.35 ± (2.03)^cd

34.57 ± (1.69)^d

Ca8-P

Control

3.17 ± (0.31)^e

3.01 ± (0.24)^e

2.41 ± (0.48)^e

2.93 ± (0.11)^e

2.65 ± (0.19)^e

Ap

74.68 ± (3.66)^ab

75.28 ± (4.12)^ab

76.95 ± (2.63)^a

75.38 ± (3.14)^ab

74.68 ± (2.87)^ab

Ap-Z

70.14 ± (4.25)^bcd

74.92 ± (3.27)^ab

76.68 ± (2.53)^a

75.33 ± (2.04)^ab

71.93 ± (3.13)^abc

Ap-M

70.57 ± (4.38)^bcd

65.33 ± (4.16)^d

68.33 ± (3.21)^cd

66.55 ± (3.51)^cd

70 ± (4.35)^bcd

Ca10-P

Control

3.23 ± (0.2)^e

2.44 ± (0.30)^e

2.21 ± (0.17)^e

3.22 ± (0.20)^e

2.23 ± (0.21)^e

Ap

97.81 ± (6.96)^a

84.81 ± (4.48)^b

75.67 ± (3.21)^c

95.86 ± (4.21)^a

84.82 ± (4.26)^b

Ap-Z

75.85 ± (2.20)^c

65.17 ± (3.55)^d

66.13 ± (3.43)^d

66.50 ± (3.96)^d

65.13 ± (3.40)^d

Ap-M

70.30 ± (3.45)^cd

66.36 ± (2.82)^d

65.23 ± (3.47)^d

69.48 ± (2.16)^d

68.23 ± (2.95)^d

Olsen-P

Control

3.59 ± (0.44)^h

4.10 ± (0.17)^h

5.27 ± (0.24)^h

4.32 ± (0.56)^h

4.25 ± (0.22)^h

Ap

15.31 ± (1.14)^g

19.34 ± (2.73)^ef

21.47 ± (2.03)^cde

17.52 ± (1.50)^fg

22.31 ± (2.14)^bcd

Ap-Z

19.29 ± (1.13)^ef

24.94 ± (1.37)^ab

26.17 ± (1.06)^a

20.23 ± (1.47)^def

25.62 ± (1.13)^a

Ap-M

18.64 ± (2.48)^ef

20.45 ± (1.15)^def

24.09 ± (2.54)^abc

18.34 ± (2.04)^f

22.32 ± (1.92)^bcd

Labile Po

Control

3.33 ± (0.38)^f

4.55 ± (0.02)^ef

5.25 ± (0.49)^def

4.50 ± (1.34)^ef

4.5 ± (0.69)^ef

Ap

5.21 ± (1.02)^def

5.87 ± (0.79)^cde

6.51 ± (1.31)^abcde

5.75 ± (0.83)^cde

6.5 ± (1.05)^abcde

Ap-Z

5.67 ± (0.92)^cde

5.62 ± (1.25)^cde

6.55 ± (1.20)^abcde

5.96 ± (1.11)^bcde

5.90 ± (1.10)^cde

Ap-M

7.72 ± (1.90)^abc

7.67 ± (1.54)^abc

8.43 ± (2.01)^a

7.05 ± (2.02)^abcd

8.16 ± (2.02)^ab

Moderately labile Po

Control

4.60 ± (1.06)ⁱ

5.79 ± (1.35)^hi

7.69 ± (1.14) ^efghi

5.37 ± (1.10)^hi

7.48 ± (2.22) ^efghi

Ap

6.31 ± (1.98) ^fghi

8.11 ± (1.07)^efgh

11.36 ± (1.14)^d

6.15 ± (1.43)^ghi

9.66 ± (1.93)^de

Ap-Z

7.22 ± (0.82) ^efghi

9.07 ± (1.13)^defg

12.15 ± (1.23)^d

9.51 ± (1.47)^def

9.43 ± (1.44)^def

Ap-M

20.75 ± (3.04)^c

21.06 ± (2.03)^bc

24.53 ± (2.26)^a

23.90 ± (2.65)^ab

23.37 ± (1.33)^abc

Moderately non-labile Po

Control

3.17 ± (0.17)^d

4.86 ± (1.30) ^bcd

5.58 ± (1.92) ^bcd

3.39 ± (1.46) ^bcd

5.18 ± (1.87)^cd

Ap

5.86 ± (1.28)^bcd

5.16 ± (0.90) ^bcd

7.75 ± (1.60)^b

4.52 ± (0.70) ^bcd

5.29 ± (1.45) ^bcd

Ap-Z

4.61 ± (1.45) ^bcd

5.96 ± (1.42) ^bcd

6.82 ± (1.03)^bc

5.58 ± (0.50) ^bcd

5.76 ± (0.66) ^bcd

Ap-M

18.62 ± (3.49)^a

18.14 ± (2.49)^a

19.34 ± (2.26)^a

18.69 ± (2.69)^a

18.76 ± (1.99)^a

Non-labile H Po

Control

1.18 ± (0.06)^d

3.03 ± (1.27)^abcd

3.72 ± (0.78)^abc

1.39 ± (0.76)^cd

2.35 ± (1.03)^bcd

Ap

2.24 ± (0.27)^bcd

3.57 ± (1.91)^abcd

4.98 ± (0.96)^a

3.07 ± (1.94)^abcd

4.29 ± (1.64)^ab

Ap-Z

3.54 ± (1.67)^abcd

4.46 ± (1.07)^ab

5.53 ± (1.31)^a

3.20 ± (1.45)^abcd

4.39 ± (0.55)^ab

Ap-M

3.59 ± (1.19)^abcd

3.89 ± (1.40)^ab

4.70 ± (1.66)^ab

3.35 ± (0.50)^abcd

4.87 ± (1.52)^a

Non-labile R Po

Control

5.05 ± (0.96)^b

4.85 ± (1.00)^b

5.77 ± (0.73)^b

5.50 ± (0.89)^b

5.22 ± (0.35)^b

Ap

10.60 ± (1.55)^a

10.78 ± (1.45)^a

13.38 ± (3.50)^a

11.47 ± (1.52)^a

12.39 ± (3.06)^a

Ap-Z

11.89 ± (2.79)^a

12.40 ± (3.25)^a

13.35 ± (2.93)^a

13.35 ± (2.77)^a

12.83 ± (1.69)^a

Ap-M

11.48 ± (2.06)^a

11.65 ± (2.19)^a

14.28 ± (3.31)^a

11.24 ± (2.72)^a

11.35 ± (3.43)^a