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Answer the following questions for the soil data listed below.

Exchangeable Cations Cations in Saturated Extract

(ppm Soil) (ppm solution)

Ca 1600 180

Mg 600 20

Na 1000 900

K 600 5

CEC (me/100g) = 17 pH (sat'd paste) = 8.6

CaCO₃ (%) = 2 EC_se (mmho/cm) = 4.5

a. Calculate CEC and compare with measured CEC. Suggest a reason why the two values may be different.

b. Calculate SAR and estimate SAR from the exchangeable cation data.

c. Calculate and estimate ESR and ESP.

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Chemistry, Academics

Category:- Chemistry
Reference No.:- M9784214

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