Abstract
Gypmsum grades (5-16, 16-25, 25-60, 60-100, > 1 00 mesh) @ 100 %. GR of 15 cm soil column and four synthetic waters (EC 0.6 +. SAR 6; E5 1.0 + SAR 12; EC 2.0 + SAR 18; EC 4.0 dS m r + SAR 30), in all possible combinations, were tested for reclaiming a loamy clay saline-sodic soil in a liiboratory experiment. The results indicated that the dissolation _9.f gypsum grades varied only by less than 1 me 1 in all the synthetic waters. The· reduction in EC and SAR increased as the gypsum fineness in1:reased and/or brackishness of water decreased. The pH was decreased by coarser grades more than tha tS with the finer ones, whereas the increasing brackishness of waters caused progressively lower decrease in pH s

M.M. Ahmad, S. Muhammed. (1989) EFFICIENCY OF GYPSIUM GRADES AND QUALITY OF LEACHING WATER FOR RECLAIMING A SALINE-SODIC SOIl. n, CHEMICAL IMPROVEMENT OF SOIL, , Volume 26, Issue 3.
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