Next Article in Journal
Ascophyllum nodosum Application and Pre-Sowing Stimulation with Low-Frequency Magnetic Field as Factors Influencing Oat Grains (Avena sativa L.) Composition
Next Article in Special Issue
Microbial Ecotoxicity of Biochars in Agricultural Soil and Interactions with Linear Alkylbenzene Sulfonates
Previous Article in Journal
Scion × Rootstock Response on Production, Mineral Composition and Fruit Quality under Heavy-Calcareous Soil and Hot Climate
Article

Modeling Water Flow and Phosphorus Sorption in a Soil Amended with Sewage Sludge and Olive Pomace as Compost or Biochar

1
Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia
2
Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia
3
Department of Environmental Sciences, University of California Riverside, Riverside, CA 92521, USA
4
UK Centre for Ecology & Hydrology, ECW, Bangor LL57 2UW, UK
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(8), 1163; https://doi.org/10.3390/agronomy10081163
Received: 15 July 2020 / Revised: 4 August 2020 / Accepted: 6 August 2020 / Published: 8 August 2020
Organic amendments are often reported to improve soil properties, promote plant growth, and improve crop yield. This study aimed to investigate the effects 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 g−1), 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. View Full-Text
Keywords: soil amendments; inverse estimation; numerical modeling; phosphate; HYDRUS soil amendments; inverse estimation; numerical modeling; phosphate; HYDRUS
Show Figures

Figure 1

MDPI and ACS Style

Filipović, V.; Černe, M.; Šimůnek, J.; Filipović, L.; Romić, M.; Ondrašek, G.; Bogunović, I.; Mustać, I.; Krevh, V.; Ferenčević, A.; Robinson, D.; Palčić, I.; Pasković, I.; Goreta Ban, S.; Užila, Z.; Ban, D. Modeling Water Flow and Phosphorus Sorption in a Soil Amended with Sewage Sludge and Olive Pomace as Compost or Biochar. Agronomy 2020, 10, 1163. https://doi.org/10.3390/agronomy10081163

AMA Style

Filipović V, Černe M, Šimůnek J, Filipović L, Romić M, Ondrašek G, Bogunović I, Mustać I, Krevh V, Ferenčević A, Robinson D, Palčić I, Pasković I, Goreta Ban S, Užila Z, Ban D. Modeling Water Flow and Phosphorus Sorption in a Soil Amended with Sewage Sludge and Olive Pomace as Compost or Biochar. Agronomy. 2020; 10(8):1163. https://doi.org/10.3390/agronomy10081163

Chicago/Turabian Style

Filipović, Vilim, Marko Černe, Jiří Šimůnek, Lana Filipović, Marija Romić, Gabrijel Ondrašek, Igor Bogunović, Ivan Mustać, Vedran Krevh, Anja Ferenčević, David Robinson, Igor Palčić, Igor Pasković, Smiljana Goreta Ban, Zoran Užila, and Dean Ban. 2020. "Modeling Water Flow and Phosphorus Sorption in a Soil Amended with Sewage Sludge and Olive Pomace as Compost or Biochar" Agronomy 10, no. 8: 1163. https://doi.org/10.3390/agronomy10081163

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop