Amending triple superphosphate with chicken litter biochar improves phosphorus availability
| Autor: | Audrey Asap, Maru Ali, Ahmed Osumanu Haruna, Nik Muhamad Nik Ab. Majid |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Science
interaction Soil Science chemistry.chemical_element Plant Science 010501 environmental sciences Environmental Science (miscellaneous) 01 natural sciences Incubation period interaction optimization phosphorus fertilizers phosphorus fixation tropical acid soils phosphorus fertilizers Animal science Soil pH Biochar Cation-exchange capacity lcsh:Agriculture (General) Charcoal 0105 earth and related environmental sciences Fen Phosphorus phosphorus fixation tropical Soil classification 04 agricultural and veterinary sciences lcsh:S1-972 chemistry visual_art Soil water 040103 agronomy & agriculture visual_art.visual_art_medium Litter 0401 agriculture forestry and fisheries Incubation period optimization Agronomy and Crop Science |
| Zdroj: | Volume: 7, Issue: 2 121-132 Eurasian Journal of Soil Science Eurasian Journal of Soil Science, Vol 7, Iss 2, Pp 121-132 (2018) |
| ISSN: | 2147-4249 |
| Popis: | The reaction of H2PO42- and HPO4- with Al and Fe in acid soils to form a precipitate reduces P availability. Chicken litter biochar has been used to improve soil P availability for maize production but with limited information on optimum rates of biochar and Triple Superphosphate (TSP) to increase P availability. This study determined the optimum amount of chicken litter biochar and TSP that could increase P availability. Different rates of chicken litter biochar and TSP were evaluated in an incubation study for 30, 60, and 90 days. Selected soil chemical properties before and after incubation were determined using standard procedures. Soil pH, total P, available P, and water soluble P increased in treatments with 75% and 50% biochar. Total acidity, exchangeable Al3+, and Fe2+ were significantly reduced by the chicken litter biochar. The chicken litter biochar also increased soil CEC and exchangeable cations (K, Ca, Mg and Na). The use of 75% and 50% of 5 t ha-1 biochar with 25% TSP of the existing recommendation can be used to increase P availability whilst minimizing soil Al and Fe content. This rates can be used to optimize chicken litter biochar and TSP use in acid soils for crop production especially maize and short term vegetables. |
| Databáze: | OpenAIRE |
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