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Manasvi Patwardhan

Unit conversion from mg/kg to kg/ha of soil P sorption capacity ?

Carlo Bergonzoni  Follow

Thank you Vit, that was my initial result! thank you for confirming

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Alloyce Jackson  Follow

YOU ARE RIGHT @GERLINDE ROSKAM. Thanks for correction. The depth of the soil is really 3 m, NOT 0.3 m as I calculated. I am sorry for my mistake.
Correct result is The mass of P sorbed per ha (depth 300 cm) 2.801.104 kg/ha.
I appologize for my mistake .
Best regards
Vit

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Aliayson  Follow

The mass of soil, area of 1 ha (= 10,000 m2), depth 0.3 m (= 300 cm):
V (volume of soil) = 10,000 m2 * 0.3 m = 3,000 m3
bulk density 1.4 g.cm-3 is equal to 1,400 kg.m-3
m (mass of soil) = 3,000 m3 * 1,400 kg.m-3 = 4.2*106 kg
Sorption capacity of soil for P: 667 mg.kg-1
the total mass of sorbed P is 4.2*106 kg * 667 mg.kg-1 = 2.801.109 mg = 2.801.103 kg of P.
Regards
Vit

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Christine EveningsFall  Follow

The mass of P sorbed per ha (depth 300 cm) 2.801.103 kg/ha
Regards
Vit

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Angelo Paredes  Follow

Vit Mateju Yes I agree.
it is,
Area, 1 ha = 10,000 m^2;
depth, 0.3 m = 300 cm;
volume of soil in one ha, V = 10,000 m^2 x 0.3 m = 3,000 m^3
bulk density, 1.4 g/cm^3 = 1,400 kg/m^3
Weight of soil in 1 ha = 3,000 m^3 X 1,400 kg/m^3 = 4,200,000 kg/ha
So, P sorption capacity 667 mg/kg => 667 mg/kg X 4,200,000 kg/ha
= 2,801,400,000 mg/ha
= 2.80 X 10^3 kg/ha


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Dave Busby  Follow

I'd say 300 cm is 3 meter, not 0.3 m ...

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Aiden Nalizda  Follow

The mass of soil, area of 1 ha (= 10,000 m2), depth 0.3 m (= 300 cm):
V (volume of soil) = 10,000 m2 * 0.3 m = 3,000 m3
bulk density 1.4 g.cm-3 is equal to 1,400 kg.m-3
m (mass of soil) = 3,000 m3 * 1,400 kg.m-3 = 4.2*106 kg
Sorption capacity of soil for P: 667 mg.kg-1
the total mass of sorbed P is 4.2*106 kg * 667 mg.kg-1 = 2.801.109 mg = 2.801.103 kg of P.
Regards
Vit

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