Abstract
Field studies were conducted to evaluate the industrial effluents (HCl and CaCl2) for reclaiming salt-affected soils for economical crop production. The soil under test was saline-sodic and clay-loam in texture. Four treatments viz., HCl, CaCl2, gypsum and control according to gypsum requirement were applied fifty days before sowing of wheat. Results showed significant increase in wheat yield and improvements in soil EC, pH and SAR by the application of these effluents. Increase in wheat yield was about 54, 96 and 117 % with gypsum, CaCl2 and HCl, respectively. The post harvest analysis of soil samples showed that significant improvement in soil chemical properties was obtained with HCl followed by CaCl2 and gypsum. Results showed that HCl was better in improving soil properties i.e. reduction in pH from 8.5 to 8.08, ECe from 13.3 to 2.78 dS m-1, SAR from 68.7 to 10.5 (mmol L-1) 1/2 , Cl-1 from 146.2 to 25.7 meq L-1 and SO4 -2 from 120.5 to 18.6 meq L-1
Z. Iqbal*, T.M. Qureshi, , M. Akhtar , J. Akhtar. (2010) Evaluation of industrial effluents for reclaiming salt-affected soil and achieving economic crop productivity, The Journal Soil & Environment , Volume 29, Issue 1.
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