
TY  - JOUR
A1  - Chauhan, RPS 
A1  - Chauhan, CPS 
T1  - A modification to Schoonover's method of gypsum requirement determination of soil
JF  - Soil Research
JO  - Soil Res.
Y1  - 1979
VL  - 17
IS  - 2
SP  - 367
EP  - 370
KW  - 
UR  - https://doi.org/10.1071/SR9790367 
N2  - During laboratory studies it was noted that water-soluble carbonate plus bicarbonate interferes with the determination of gypsum requirement (GR) by Schoonover's method and has significant correlation with the latter (r = 0.89). The interference of carbonate and bicarbonate can be eliminated through their precipitation as magnesium carbonate. A modified method to this effect is suggested hereby, and values of GR determined by this method are quite close (r = 0.99) to those of exchangeable sodium and give a fair approximation to it. 
ER  -

