Does soil contain sufficient lime to decrease esp to 5 if s

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Reference no: EM13469022

A laboratory analysis showed the following results:

CEC = 20 meq/100g soil solution Ca = 6 meq/1

CaCO₃ = 0.2% soil solution Mg = 2 meq/1

pH = 8.6 soil solution Na = 36 meq/1

EC = 5.0 mmhos/cm

a. Calculate SAR, ESR, and ESP

b. Calculate the Gypsum (lbs/afs) required to reduce ESP to 5%.

c. Does the soil contain enough lime to reduce ESP to 5% if S were used instead of gypsum? How much S (lbs/afs) is required to reduce ESP?

Reference no: EM13469022

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