Modeling Water Flow and Phosphorus Sorption in a Soil Amended with Sewage Sludge and Olive Pomace as Compost or Biochar (CROSBI ID 282594)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Filipović, Vilim ; Černe, Marko ; Šimunek, Jiri ; Filipović, Lana ; Romić, Marija ; Ondrašek, Gabrijel ; Bogunović, Igor ; Mustać, Ivan ; Krevh, Vedran ; Ferenčević, Anja ; Robinson, David ; Palčić, Igor ; Pasković, Igor ; Goreta Ban, Smiljana ; Zoran, Užila ; Dean, Ban ;
engleski
Modeling Water Flow and Phosphorus Sorption in a Soil Amended with Sewage Sludge and Olive Pomace as Compost or Biochar
Organic amendments are often reported to improve soil properties, promote plant growth, and improve crop yield. This study aimed to investigate the e ects of the biochar and compost produced from sewage sludge and olive pomace on soil hydraulic properties, water flow, and P transport (i.e., sorption) using numerical modeling (HYDRUS-1D) applied to two soil types (Terra Rosa and Rendzina). Evaporation and leaching experiments on soil cores and repacked soil columns were performed to determine the soil water retention, hydraulic conductivity, P leaching potential, and P sorption capacity of these mixtures. In the majority of treatments, the soil water retention showed a small increase compared to the control soil. A reliable fit with the modified van Genuchten model was found, which was also confirmed by water flow modeling of leaching experiments (R2 0.99). The results showed a high P sorption in all the treatments (Kd 21.24 to 53.68 cm3 g1), and a high model reliability when the inverse modeling procedure was used (R2 0.93– 0.99). Overall, adding sewage sludge or olive pomace as compost or biochar improved the Terra Rosa and Rendzina water retention and did not increase the P mobility in these soils, proving to be a sustainable source of carbon and P-rich materials.
soil amendments ; inverse estimation ; numerical modeling ; phosphate ; HYDRUS
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Podaci o izdanju
Trošak objave rada u otvorenom pristupu
Povezanost rada
Poljoprivreda (agronomija)