Research Article
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge
Table 2
Mean extracted phosphorus by Mehlich-I, H2SO4, and resin in the two experiments described in the text: one with amendment of sewage sludge and the other with the amendment of sewage sludge and composted sewage sludge ().
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For each experiment, values with the same letter within a column are not different (Tukey, ). |