Minimizing phosphorus sorption and leaching in a tropical acid soil using Egypt rock phosphate with organic amendments
The study examined changes in soil phosphorus sorption and desorption, pH buffering capacity, and phosphorus leaching upon application of organic amendments (chicken litter biochar and pineapple leaf residues compost). The phosphorus sorption data were fitted to the Langmuir equation. Results reveal...
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College of Agriculture, University of the Philippines Los Banos
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/53290/ http://psasir.upm.edu.my/id/eprint/53290/1/Minimizing%20phosphorus%20sorption%20and%20leaching%20in%20a%20tropical%20acid%20soil%20using%20Egypt%20rock%20phosphate%20with%20organic%20amendments.pdf |
| _version_ | 1848852244797063168 |
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| author | Ch'ng, Huck Ywih Ahmed, Osumanu Haruna Nik Majid, Nik Muhamad |
| author_facet | Ch'ng, Huck Ywih Ahmed, Osumanu Haruna Nik Majid, Nik Muhamad |
| author_sort | Ch'ng, Huck Ywih |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The study examined changes in soil phosphorus sorption and desorption, pH buffering capacity, and phosphorus leaching upon application of organic amendments (chicken litter biochar and pineapple leaf residues compost). The phosphorus sorption data were fitted to the Langmuir equation. Results revealed that at phosphorus concentrations of <10 mg L⁻¹, sorbed phosphorus was significantly increased under treatments with organic amendments whereas more phosphorus was desorbed with increasing phosphorus application rates (10 to 20 mg L⁻¹). The decrease in phosphorus sorption was due to precipitation of exchangeable aluminum and extractable iron at the highly negatively charged humic substances functional group surfaces of the organic amendments. High pH buffering capacities were reported in the treatments with organic amendments compared with the treatment that used soil only. The cumulative loss of phosphorus in the treatments with organic amendments at 60 d of leaching was higher than that of the treatment without organic amendments. This effect was due to the low sorption and binding energy of biochar and pineapple leaf residues compost. Amendment of Egypt rock phosphate with biochar and pineapple leaf residues compost imposed high pH buffering capacity and improved phosphorus availability, but did not significantly reduce phosphorus leaching in the acid soil used in this study. |
| first_indexed | 2025-11-15T10:35:00Z |
| format | Article |
| id | upm-53290 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:35:00Z |
| publishDate | 2016 |
| publisher | College of Agriculture, University of the Philippines Los Banos |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-532902022-03-18T01:59:25Z http://psasir.upm.edu.my/id/eprint/53290/ Minimizing phosphorus sorption and leaching in a tropical acid soil using Egypt rock phosphate with organic amendments Ch'ng, Huck Ywih Ahmed, Osumanu Haruna Nik Majid, Nik Muhamad The study examined changes in soil phosphorus sorption and desorption, pH buffering capacity, and phosphorus leaching upon application of organic amendments (chicken litter biochar and pineapple leaf residues compost). The phosphorus sorption data were fitted to the Langmuir equation. Results revealed that at phosphorus concentrations of <10 mg L⁻¹, sorbed phosphorus was significantly increased under treatments with organic amendments whereas more phosphorus was desorbed with increasing phosphorus application rates (10 to 20 mg L⁻¹). The decrease in phosphorus sorption was due to precipitation of exchangeable aluminum and extractable iron at the highly negatively charged humic substances functional group surfaces of the organic amendments. High pH buffering capacities were reported in the treatments with organic amendments compared with the treatment that used soil only. The cumulative loss of phosphorus in the treatments with organic amendments at 60 d of leaching was higher than that of the treatment without organic amendments. This effect was due to the low sorption and binding energy of biochar and pineapple leaf residues compost. Amendment of Egypt rock phosphate with biochar and pineapple leaf residues compost imposed high pH buffering capacity and improved phosphorus availability, but did not significantly reduce phosphorus leaching in the acid soil used in this study. College of Agriculture, University of the Philippines Los Banos 2016-06 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/53290/1/Minimizing%20phosphorus%20sorption%20and%20leaching%20in%20a%20tropical%20acid%20soil%20using%20Egypt%20rock%20phosphate%20with%20organic%20amendments.pdf Ch'ng, Huck Ywih and Ahmed, Osumanu Haruna and Nik Majid, Nik Muhamad (2016) Minimizing phosphorus sorption and leaching in a tropical acid soil using Egypt rock phosphate with organic amendments. Philippine Agricultural Scientist, 99 (2). pp. 176-185. ISSN 0031-7454 https://www.cabdirect.org/cabdirect/abstract/20163271576 |
| spellingShingle | Ch'ng, Huck Ywih Ahmed, Osumanu Haruna Nik Majid, Nik Muhamad Minimizing phosphorus sorption and leaching in a tropical acid soil using Egypt rock phosphate with organic amendments |
| title | Minimizing phosphorus sorption and leaching in a tropical acid soil using Egypt rock phosphate with organic amendments |
| title_full | Minimizing phosphorus sorption and leaching in a tropical acid soil using Egypt rock phosphate with organic amendments |
| title_fullStr | Minimizing phosphorus sorption and leaching in a tropical acid soil using Egypt rock phosphate with organic amendments |
| title_full_unstemmed | Minimizing phosphorus sorption and leaching in a tropical acid soil using Egypt rock phosphate with organic amendments |
| title_short | Minimizing phosphorus sorption and leaching in a tropical acid soil using Egypt rock phosphate with organic amendments |
| title_sort | minimizing phosphorus sorption and leaching in a tropical acid soil using egypt rock phosphate with organic amendments |
| url | http://psasir.upm.edu.my/id/eprint/53290/ http://psasir.upm.edu.my/id/eprint/53290/ http://psasir.upm.edu.my/id/eprint/53290/1/Minimizing%20phosphorus%20sorption%20and%20leaching%20in%20a%20tropical%20acid%20soil%20using%20Egypt%20rock%20phosphate%20with%20organic%20amendments.pdf |