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Pelleted manure compost improves mine spoil properties enhancing plant growth and phyto-stabilization of potentially toxic metals

Indraratne, Srimathie P.; Pierzynski, Gary M.; Baker, Lucas R.; Prasad, P.V. Vara; Arachchige, Pavithra S. Pitumpe (NRC Research Press, 2022-08-18)

Feedlotmanure is rich in plant nutrients and can immobilize potentially toxic metals. However, pelleted manure compost as an amendment material in mine spoils (chat) is not well studied. This study was conducted to investigate ...

Degree of Phosphorus Saturation as a Predictor of Redox-Induced Phosphorus Release from Flooded Soils to Floodwater

Kumaragamage, Darshani; Amarawansha, Geethani S.; Indraratne, Srimathie P.; Jayarathne, Kumudu; Flaten, Donald N.; Zvomuya, Francis; Akinremi, Olalekan O. (American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2019-11-01)

Phosphorus (P) loss from soils is often enhanced under flooded, anaerobic conditions, increasing the risk of freshwater eutrophication. We aimed to develop a predictive tool to identify soils with greater P release potential ...

Gypsum Amendment Reduces Redox-Induced Phosphorous Release from Freshly Manured, Flooded Soils to Floodwater

Dharmakeerthi, Randombage S.; Kumaragamage, Darshani; Indraratne, Srimathie P.; Goltz, Doug (American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2019-01-01)

The effectiveness of gypsum in reducing runoff P losses from soils and the mechanisms responsible are well documented; however, gypsum amendment effects in reducing redox-induced P losses from flooded soils are less ...

Mobility of arsenic and vanadium in waterlogged calcareous soils due to addition of zeolite and manganese oxide amendments

Indraratne, Srimathie P.; Attanayake, Chammi P.; Kumaragamage, Darshani; Amarawansha, Geethani; Goltz, Douglas M.; Applin, Daniel M. (Wiley, 2023-01-17)

Addition of manganese(IV) oxides (MnO2) and zeolite can affect the mobility of As and V in soils due to geochemical changes that have not been studied well in calcareous, flooded soils. This study evaluated the mobility ...

Nano-oxides immobilize cadmium, lead, and zinc in mine spoils and contaminated soils facilitating plant growth

Indraratne, Srimathie P.; Pierzynski, Gary M.; Baker, Lucas R.; Prasad, P.V. Vara (NRC Research Press, 2021-04-26)

Nanoparticles with high reactivity can be applied as amendments to remediate soil metal contaminations by immobilizing toxic elements. Nano-oxides of Fe have been studied but Al and Ti nano-oxides have not been tested for ...