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Influence of Super Absorbent Polymers on Infiltration Characteristics of Alfisols in Semi -Arid Region.

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Title Influence of Super Absorbent Polymers on Infiltration Characteristics of Alfisols in Semi -Arid Region.
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Creator Reddy K.S, Vijayalaxmi, V.Maruthi, Nemichandrappa and B.Umesha.
 
Subject Infiltration rate, alfisols, super absorbent polymers, Philips model, semi-arid region
 
Description Not Available
Infiltration characteristics of the soil are important to understand the water dynamics in the root zone of a
soil-plant system. A laboratory experiment was conducted to study the infiltration characteristics of sandy loam soil under
different application rates of super absorbent polymers (SAPs). Four polymer products (P1, P2, P3 and P4) of the commercial
value with different concentrations (0.25%, 0.75%, 1.25% and 1.75%) were used and compared with control (soil without
polymer). Among four polymer products tested, SAP P3 showed maximum reduction (90%) in the steady state infiltration
rate as compared to P1, P2 and P4 tested over different concentrations. The steady infiltration rate was decreased by 3.6 to
1.75, 4.1 to 0.4, 1.4 to 0.52 and 1.6 to 0.76 cm/hr under P1, P2, P3 and P4, respectively in the polymer concentrations of 0.25,
0.75, 1.25 and 1.75%. The infiltration data were fitted to Philip model and model parameters had the best description of the
relationship between infiltration rate and application rate of super absorbent polymers in the sandy loam soil with significant
reduction in saturated hydraulic conductivity (A) varying from 12.4 to 84.75%. Out of four polymers tested, P3 had more
reduction capacity in the infiltration rates of sandy loam soils as compared to other SAPs
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Date 2023-01-30T06:16:45Z
2023-01-30T06:16:45Z
2015
 
Type Research Paper
 
Identifier Reddy K.S, Vijayalaxmi, V.Maruthi, Nemichandrappa and B.Umesha. (2015). Influence of Super Absorbent Polymers on Infiltration Characteristics of Alfisols in Semi -Arid Region. Indian Journal of Dryland Agricultural Research and Development. 30(22): 11-16.
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http://krishi.icar.gov.in/jspui/handle/123456789/75858
 
Language English
 
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