Table 2 Chemical characterization of P sources used in the greenhouse experiment.

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

Sources

P205-T

P2O5-CA

P2O5 NAC

WP2O5

K2O

SO4

Ca

Mg

Cu

Fe

Mn

Zn

B

PP1

9.10

2.62

3.53

–

–

3.60

24.76

0.23

–

1.05

0.3

0.05

0.08

PP2

14.40

5.97

11.68

–

–

2.50

15.0

0.34

0.01

3.29

0.8

0.08

0.07

RP

29.40

6.87

5.77

–

0.04

32.60

32.50

0.33

0.02

0.39

0

0.06

0.09

TSP

48.08

17.04

45.07

37.34

–

4.40

13.10

0.26

0.02

1.79

0.07

0.08

0.02

  1. TP2O5  total phosphate, P2O5 CA  citric acid, P2O5 NAC neutral ammonium citrate, W  water. Methods applied were performed according to the MAPA (2017).
  2. PP1 precipitated P, PP2 precipitated P, RP reactive phosphate rock, TSP triple superphosphate.
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