Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Krutz, L. Jason

Committee Member

Golden, Bobby R.

Committee Member

Locke, Martin A.

Committee Member

Kenty, Michael M.

Committee Member

Cox, Michael S.

Date of Degree

8-12-2016

Document Type

Graduate Thesis - Open Access

Major

Agronomy

Degree Name

Master of Science

College

College of Agriculture and Life Sciences

Department

Department of Plant and Soil Sciences

Abstract

Polyacrylamides (PAMs) are water-soluble, long-chain synthetic organic polymers that, when applied as a soil amendment, purportedly improves infiltration, decreases sediment and agrochemical transport, and improves crop yield. There is a paucity of data, however, on the effect of PAM applied through laylat polyethylene tubing on infiltration, erosion, agrochemical transport, and crop yield for Mid-South soils in furrow irrigated environments. The objective of this thesis was to compile and analyze PAM use in agricultural settings in the United States, and to conduct a 2 year field experiment to assess PAM effects on infiltration, erosion, N and P transport, and corn grain yield on a Dundee silt loam and a Forestdale silty clay loam soil located in Stoneville and Tribbett, Mississippi, respectively. Results indicate PAM has utility to improve infiltration and crop yield in Mid-South production systems, but effects on sediment and N and P transport will be variable and site specific.

URI

https://hdl.handle.net/11668/20648

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