Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Rowe, E. Dennis
Committee Member
Tewolde, Haile
Committee Member
Matta, B. Frank
Committee Member
McCarty, C. Jack
Committee Member
Williams, A. Mark
Other Advisors or Committee Members
Cox, S. Michael||Wallace, Ted
Date of Degree
8-9-2008
Document Type
Dissertation - Open Access
Major
Agronomy
Degree Name
Doctor of Philosophy (Ph.D)
College
College of Agriculture and Life Sciences
Department
Department of Plant and Soil Sciences
Abstract
Amending litter with aluminum sulfate (Al-S) has proven to be effective in reducing water-soluble P but there are concerns that it could result in soil pH reduction and increase levels of extractable soil Al if applied to acidic soils. A glasshouse study with soybean (Glycine max, L Merr) and cotton (Gossypium hirsutum L) as test crops was conducted to determine the impact of applying litter amended with Al-S at 0, 10 and 20% to an acidic sandy loam soil. These treatments were applied to meet N needs of a crop grown in soil with pH levels of 4.5, 5.0, 5.5 and 6.5. The experimental design was a randomized complete block. Application of BL + 20% Al-S to soil with initial pH of 4.5 or 5.0 significantly decreased the pH compared to BL. The decrease in soil pH with application of BL + 20% Al-S was attributed to high concentrations of geochemically labile Al which released hydrogen ions upon hydrolysis. Both BL and BL + 10% Al-S increased the initial soil pH and decreased extractable soil Al. Application of BL + 20% Al-S resulted in significant higher levels of extractable soil Al than BL and the differences were greater in the lower pH soils. Mehlich-3 extractable soil P, K, Mg, Ca, and Cu decreased with BL + 10 or 20% Al-S relative to BL. Soybean or cotton biomass from BL + 20% Al-S fertilization was significantly decreased relative to BL fertilized soils with initial pH of 4.5 or 5.0. Biomass with BL + 10% Al-S application were not statistically different from those fertilized with BL. Fertilizing cotton or soybean with BL + Al-S decreased tissue Al, N and P concentration. BL and BL + 10% Al-S showed the potential to increase soil pH and reduce extractable soil Al in acid soils but need further field evaluation.
URI
https://hdl.handle.net/11668/15277
Recommended Citation
Lungu, Sosten, "Effect of poultry litter amended with aluminum sulfate on plant growth and soil properties" (2008). Theses and Dissertations. 1679.
https://scholarsjunction.msstate.edu/td/1679