Economic and Environmental Geology

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Table. 2.

Table. 2.

Applied ratio of fertilizer in soils

Soil Conditions for P2O5 (mg/kg)
Control Set 1 Set 2 Set 3 Set 4 Set 5
Okdong 96.5 180 341 503 664 825
Buguk 35.0 180 341 503 664 825

Mixed amount of fertilizer (mg/kg) = {P2O5 Experimental conditions (mg/kg) - P2O5 concentration in the soil (mg/kg)}× 0.44a × 3.71b

*a: Conversion factor of P2O5 and P

*b: Conversion factor of NH4H2PO4 and P

Econ. Environ. Geol. 2022;55:209-17 https://doi.org/10.9719/EEG.2022.55.2.209
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