Static and Dynamic Investigations on Leaching/Retention of Nutrients from Raw Poultry Manure Biochars and Amended Agricultural Soil
| Autor: | Samar Hadroug, Marzena Kwapinska, James J. Leahy, Helmi Hamdi, Salah Jellali, Witold Kwapinski, Mejdi Jeguirim |
|---|---|
| Přispěvatelé: | Tunisian Ministry Of Higher Education and Scientific Research |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Potassium
Geography Planning and Development Amendment chemistry.chemical_element TJ807-830 010501 environmental sciences Management Monitoring Policy and Law TD194-195 01 natural sciences Renewable energy sources Nutrient Adsorption nutrients Biochar sequential extraction GE1-350 Leaching (agriculture) 0105 earth and related environmental sciences Environmental effects of industries and plants Renewable Energy Sustainability and the Environment Phosphorus 04 agricultural and veterinary sciences Environmental sciences leaching chemistry poultry manure biochar adsorption Environmental chemistry Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries |
| Zdroj: | Sustainability, Vol 13, Iss 1212, p 1212 (2021) Sustainability Volume 13 Issue 3 |
| ISSN: | 2071-1050 |
| Popis: | In this study, nutrients release/adsorption from/by raw poultry manure-derived biochar produced at a pyrolysis temperature of 600 ° C (RPM-B) was assessed under static and dynamic conditions. Batch sequential leaching experiments of RPM-B for a total contact time of 10 days showed that both phosphorus and potassium were slowly released but with higher amounts compared to various other animal- and lignocellulosic-derived biochars. The cumulated released P and K amounts were assessed to 93.6 and 17.1 mg g&minus 1, which represent about 95% and 43% of their original contents in the RPM-B, respectively. The column combined leaching/adsorption experiments showed that amending an alkaline sandy agricultural soil with two doses of RPM-B (at 5% and 8% w:w) resulted in an efficient retention of NO3-N and NH4-N, and on the contrary, important leached amounts of PO4-P, K+, Mg2+, and Ca2+ but with relatively slow kinetic release rates for a long period. Even after 40 days of dynamic leaching, these latter nutrients continued to be released with kinetic rates lower than 10 mg kg&minus 1 d&minus 1. Thus, compared to synthetic fertilizers, RPM-B valorization as organic amendment for poor semiarid soils could be considered as an attractive, eco-friendly, and sustainable waste recycling option. |
| Databáze: | OpenAIRE |
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