Ecology, Environment and Conservation Paper

Vol. 21 Dec. 2015 Suppl. Issue; Page No.(75-79)

EFFECTS OF POLYMER APPLICATION ON LEACHING OF NIOTROGEN IN SANDY LOAM AND SANDY CLAY LOAM SOILS

M. Ramesh Naik, K. Sammi Reddy and B. Srinivas

Abstract

Laboratory experiment has been undertaken with regards to the role of Polyacrilamide (PAM), in nutrient absorption. Preliminary results of leaching studies showed that the amount of N leached was significantly reduced by the application of different rates of polymer in both sandy loam and sandy clay loam soils. The amount of N leached was reduced with increased rate of application of polymer. The PAM effectively decreased leaching losses and improves the quality of ground water. In addition, PAM has the potential to reduce residual soil nitrate therefore, PAM may result in reduction in ground water contamination and reduction in greenhouse emissions (nitrous oxide). PAM appears to be a good alternative for N use in agricultural field. PAM had an important and significant inhibitory impact on downward vertical N transport. PAM effectiveness increased with PAM application rate, and the highest rate of 0.5 % PAM was most effective.

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