Improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes
In acid soils, soluble inorganic phosphorus is fixed by aluminium and iron. To overcome this problem, acid soils are limed to fix aluminium and iron but this practice is not economical. The practice is also not environmentally friendly. This study was conducted to improve phosphorus availability usi...
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Hindawi Publishing Corporation
2014
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Online Access: | http://psasir.upm.edu.my/id/eprint/37988/1/37988.pdf http://psasir.upm.edu.my/id/eprint/37988/ http://www.hindawi.com/journals/tswj/2014/506356/abs/ |
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my.upm.eprints.379882015-12-29T09:04:09Z http://psasir.upm.edu.my/id/eprint/37988/ Improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes Ch'ng, Huck Ywih Ahmed, Osumanu Haruna Nik Ab. Majid, Nik Muhamad In acid soils, soluble inorganic phosphorus is fixed by aluminium and iron. To overcome this problem, acid soils are limed to fix aluminium and iron but this practice is not economical. The practice is also not environmentally friendly. This study was conducted to improve phosphorus availability using organic amendments (biochar and compost produced from chicken litter and pineapple leaves, resp.) to fix aluminium and iron instead of phosphorus. Amending soil with biochar or compost or a mixture of biochar and compost increased total phosphorus, available phosphorus, inorganic phosphorus fractions (soluble inorganic phosphorus, aluminium bound inorganic phosphorus, iron bound inorganic phosphorus, redundant soluble inorganic phosphorus, and calcium bound phosphorus), and organic phosphorus. This was possible because the organic amendments increased soil pH and reduced exchangeable acidity, exchangeable aluminium, and exchangeable iron. The findings suggest that the organic amendments altered soil chemical properties in a way that enhanced the availability of phosphorus in this study. The amendments effectively fixed aluminium and iron instead of phosphorus, thus rendering phosphorus available by keeping the inorganic phosphorus in a bioavailable labile phosphorus pool for a longer period compared with application of Triple Superphosphate without organic amendments. Hindawi Publishing Corporation 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37988/1/37988.pdf Ch'ng, Huck Ywih and Ahmed, Osumanu Haruna and Nik Ab. Majid, Nik Muhamad (2014) Improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes. The Scientific World Journal, 2014. art. no. 506356. pp. 1-6. ISSN 2356-6140; ESSN: 1537-744X http://www.hindawi.com/journals/tswj/2014/506356/abs/ 10.1155/2014/506356 |
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In acid soils, soluble inorganic phosphorus is fixed by aluminium and iron. To overcome this problem, acid soils are limed to fix aluminium and iron but this practice is not economical. The practice is also not environmentally friendly. This study was conducted to improve phosphorus availability using organic amendments (biochar and compost produced from chicken litter and pineapple leaves, resp.) to fix aluminium and iron instead of phosphorus. Amending soil with biochar or compost or a mixture of biochar and compost increased total phosphorus, available phosphorus, inorganic phosphorus fractions (soluble inorganic phosphorus, aluminium bound inorganic phosphorus, iron bound inorganic phosphorus, redundant soluble inorganic phosphorus, and calcium bound phosphorus), and organic phosphorus. This was possible because the organic amendments increased soil pH and reduced exchangeable acidity, exchangeable aluminium, and exchangeable iron. The findings suggest that the organic amendments altered soil chemical properties in a way that enhanced the availability of phosphorus in this study. The amendments effectively fixed aluminium and iron instead of phosphorus, thus rendering phosphorus available by keeping the inorganic phosphorus in a bioavailable labile phosphorus pool for a longer period compared with application of Triple Superphosphate without organic amendments. |
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Article |
author |
Ch'ng, Huck Ywih Ahmed, Osumanu Haruna Nik Ab. Majid, Nik Muhamad |
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Ch'ng, Huck Ywih Ahmed, Osumanu Haruna Nik Ab. Majid, Nik Muhamad Improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes |
author_facet |
Ch'ng, Huck Ywih Ahmed, Osumanu Haruna Nik Ab. Majid, Nik Muhamad |
author_sort |
Ch'ng, Huck Ywih |
title |
Improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes |
title_short |
Improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes |
title_full |
Improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes |
title_fullStr |
Improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes |
title_full_unstemmed |
Improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes |
title_sort |
improving phosphorus availability in an acid soil using organic amendments produced from agroindustrial wastes |
publisher |
Hindawi Publishing Corporation |
publishDate |
2014 |
url |
http://psasir.upm.edu.my/id/eprint/37988/1/37988.pdf http://psasir.upm.edu.my/id/eprint/37988/ http://www.hindawi.com/journals/tswj/2014/506356/abs/ |
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