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Fragipan Horizon Fragmentation In Slaking Experiments With Amendment Materials And Ryegrass Root Tissue Extracts, Anastasios D. Karathanasis, Lloyd W. Murdock, Christopher J. Matocha, John H. Grove, Yvonne L. Thompson
Fragipan Horizon Fragmentation In Slaking Experiments With Amendment Materials And Ryegrass Root Tissue Extracts, Anastasios D. Karathanasis, Lloyd W. Murdock, Christopher J. Matocha, John H. Grove, Yvonne L. Thompson
Plant and Soil Sciences Faculty Publications
Slaking experiments were conducted of fragipan clods immersed in solutions of poultry manure, aerobically digested biosolid waste (ADB), fluidized bed combustion byproduct (FBC), D-H2O, CaCO3, NaF, Na-hexa-metaphosphate, and ryegrass root biomass. The fragipan clods were sampled from the Btx horizon of an Oxyaquic Fragiudalf in Kentucky. Wet sieving aggregate analysis showed significantly better fragmentation in the NaF, Na-hexa-metaphosphate, and ryegrass root solutions with a mean weight diameter range of 15.5-18.8 mm compared to the 44.2-47.9 mm of the poultry manure, ADB, and FBC treatments. Dissolved Si, Al, Fe, and Mn levels released in solution were ambiguous. …