Table 3 Plant height, stem diameter and shoot dry weight (mean ± SD) as a function of alternative P sources application in five tropical soils with different clay contents.

From: Evaluating the agronomic efficiency of alternative phosphorus sources applied in Brazilian tropical soils

Soils

P Sources

Control

PP1

PP2

RP

TSP

Plant height (cm)

 SLEntisol

34.37 ± 6.42 Bd

123.12 ± 12.54 Ab

81.25 ± 14.18 Bc

50.12 ± 9.49 Bc

140.87 ± 4.15 Aa

 LSEntisol

42.25 ± 4.66 Bd

119.25 ± 10.29 Ab

112.76 ± 7.73 Ab

58.25 ± 2.84 Bc

134.87 ± 4.60 Aa

 COxisol1

39.37 ± 8.17 Bd

105.33 ± 14.29 Bb

93.04 ± 4.11 Bb

54.62 ± 5.72 Bc

128.50 ± 10.09 Aa

 SCLOxisol

43.00 ± 10.20 Bd

106.87 ± 14.76 Bb

75.87 ± 7.76 Bc

37.12 ± 6.03 Cd

142.87 ± 9.06 Aa

 COxisol2

71.62 ± 13.64 Ac

135.00 ± 9.00 Aa

116.50 ± 13.80 Ab

87.12 ± 3.90 Ac

143.80 ± 4.68 Aa

Stem diameter (mm)

 SLEntisol

7.51 ± 0.61 Bd

17.75 ± 1.46 Ab

13.70 ± 2.53 Bc

8.79 ± 1.12 Bd

24.32 ± 3.29 Aa

 LSEntisol

7.29 ± 0.58 Bc

17.43 ± 1.73 Ab

17.16 ± 2.04 Ab

9.74 ± 1.19 Bc

21.65 ± 2.31 Aa

 COxisol1

7.13 ± 0.90 Bc

15.16 ± 1.19 Bb

12.15 ± 1.41 Bb

8.21 ± 0.66 Bc

18.51 ± 1.39 Ba

 SCLOxisol

7.27 ± 0.78 Bd

17.86 ± 3.45 Ab

13.32 ± 1.17 Bc

7.29 ± 0.98 Bd

24.57 ± 1.25 Aa

 COxisol2

12.90 ± 2.18 Ac

20.38 ± 0.46 Aa

17.77 ± 3.18 Ab

13.84 ± 1.09 Ac

21.07 ± 0.58 Aa

Shoot dry weight (g pot−1)

 SLEntisol

4.75 ± 1.46 Bd

58.47 ± 9.78 Bb

22.07 ± 10.44 Bc

5.51 ± 1.17 Ad

119.41 ± 6.68 Aa

 LSEntisol

4.12 ± 0.53 Bc

54.42 ± 3.00 Bb

47.48 ± 12.00 Ab

7.21 ± 1.98 Ac

109.79 ± 8.55 Aa

 COxisol1

3.33 ± 1.03 Bc

39.67 ± 7.91 Cb

20.88 ± 4.22 Bb

5.35 ± 0.92 Ac

55.08 ± 8.38 Ca

 SCLOxisol

3.97 ± 0.25 Bd

51.10 ± 15.68 Bb

16.67 ± 3.70 Bc

3.97 ± 1.31 Bd

125.61 ± 15.61 Aa

 COxisol2

12.96 ± 2.57 Ae

79.48 ± 11.67 Ab

46.70 ± 13.69Ac

21.13 ± 1.81Ad

99.70 ± 5.23Ba

  1. Different lowercase letters within rows differ by Tukey’s test at α = 0.05, and different capital letters within columns differ by the same post-hoc test. Numbers represent the mean values (n = 4) followed by the standard deviation (SD).
  2. SLEntisol sandy loam Entisol, LSEntisol loamy sand Entisol. COxisol1  clayey Oxisol, SCLOxisol sandy clay loam Oxisol, COxisol2 clayey Oxisol.
  3. PP1 precipitated P, PP2 precipitated P, RP reactive phosphate rock, TSP triple superphosphate.
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