Browsing Douglas Goltz by Author "Kumaragamage, Darshani"
Now showing items 1-3 of 3
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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 ... -
Temperature and freezing effects on phosphorus release from soils to overlying floodwater under flooded-anaerobic conditions
Kumaragamage, Darshani; Concepcion, Angela; Gregory, Carolyn; Goltz, Doug; Indraratne, Srimathie; Amarawansh, Geethani (American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2020-03-30)Increased phosphorus (P) availability under flooded, anaerobic conditions may accelerate P loss from soils to water bodies. Existing knowledge on P release to floodwater from flooded soils is limited to summer conditions ...