Title page for ETD etd-07242012-040102


Type of Document Master's Thesis
Author Scott, James D.
URN etd-07242012-040102
Title Availability and distribution of nitrogen and phosphorus from sewage sludge in the plant-soil-water continuum
Degree Master of Science
Department Environmental Sciences and Engineering
Advisory Committee
Advisor Name Title
Reneau, Raymond B. Jr. Committee Chair
Boardman, Gregory D. Committee Member
Kroontje, W. Committee Member
Martens, David C. Committee Member
Keywords
  • Soils
Date of Defense 1987-05-05
Availability restricted
Abstract
Research was conducted in 1984 and 1985 to determine N and P availabilities for barley (

Hordeum vulgare L.) and com ( Zea mays L.) grown on four sludge-amended soils. Tests were

conducted on the Acredale silt loam (Typic Ochraquall), Bojac loamy sand (Typic Hapludult),

Davidson clay loam (Rhodic Paleudult), and Groseclose silt loam (Typic Hapludult) soils. An

aerobically·digested sewage sludge from a sewage treatment plant with major industrial irrputs was

applied at rates of 0, 42, and 84 dry Mg ha' 1 on the poorly-drained Acredale soil. Rates of 0, 42,

84, 126, 168, and 210 dry Mg ha'1 were applied on the well-drained Bojac, Davidson, and

Groseclose soils. The 210 dry Mg ha’ 1 sludge rate supplied 3300 and 6600 kg of N and P ha’1,

respectively.

A 14-day anaerobic N incubation study indicated that mirreralization varied from approximately

nine to four percent of sludge N from the 42 to 210 Mg ha‘ 1 application rates, respectively.

Sludge application increased N uptake (rz = 0.98** to 0.99**) by the 1984 com grown on the three

well-drained soils. Nitrogen balance data indicated that quantities of unrecovered N ranged from

six to 21 percent where sludge was applied.

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