This study was conducted for evalulating the effect of Polyacrylamide (PAM) application on runoff and erosion control. Four soils of the same texture (clayey) and different saline–sodic properties were selected. Soil samples were placed in 25×25 cm trays and saturated twice through capilarity rise. After the second saturation stage, when soil moisture reached about 12% by weight, Polyacrylamide (PAM) solution was added to the soil surfaces at rates equivalent to 10, 20 and 30 Kgha-1. The trays were placed on a rain simulator frame of 20% slope and then rain intensity of 30 mmh-1 was applied to soil sample surfaces for a duration of 5 minutes, using the rainfall simulator. This procedure was repeated with a rainfall of 40 mmh-1 intensity. It was observed that all the PAM treated samples were significantly different from control, regarding runoff and soil loss. Soil loss in solis (SAR= 87 (meql-1)0.5 and (EC = 18 dSm-1) with 0 kg/ha of PAM application as well as in soils (30< SAR< 95 (meql-1)0.5 and EC=10-13 dSm-1) with 30 Kg/ha of PAM application (both subjected to 30 mm/hr rain intensity) was observed to be the least. Loss in all soils with 30 Kg/ha of PAM application (subjected to 40 mm/hr rain intensity) was also observed to be the least. As far as runoff is concerned it was observed to be minimum for soils subjected to 30 mmh-1 and 40 mmh-1 when treated with 20 and 30 Kgha-1 of PAM respectively.
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