Analysis of phosphate rock dissolution determining factors using principal component analysis in some acid Indonesian soils
Dissolution of phosphate rock (PR) materials and its subsequent phosphorus (P) availability to plants depend upon soil characteristics, PR characteristics, type of crops, and environmental conditions. Agronomic effectiveness of the PR sources has frequently been investigated in the field or in the g...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis
2007
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| Online Access: | http://psasir.upm.edu.my/id/eprint/52430/1/Analysis%20of%20phosphate%20rock%20dissolution%20determining%20factors%20using%20principal%20component%20analysis%20in%20some%20acid%20Indonesian%20soils.pdf |
| _version_ | 1825930723907862528 |
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| author | Hilman, Yusdar Abdul Rahim, Anuar Musa, Mohamed Hanafi Hashim, Azizah |
| author_facet | Hilman, Yusdar Abdul Rahim, Anuar Musa, Mohamed Hanafi Hashim, Azizah |
| author_sort | Hilman, Yusdar |
| collection | UPM |
| description | Dissolution of phosphate rock (PR) materials and its subsequent phosphorus (P) availability to plants depend upon soil characteristics, PR characteristics, type of crops, and environmental conditions. Agronomic effectiveness of the PR sources has frequently been investigated in the field or in the greenhouse. This is time consuming and not cost-effective. Therefore, identification of the soil characteristics influencing the dissolution of PR is very important for direct application of P sources. The principal component analysis was used to summarize the characteristics of acid soils in an incubation system into a number of factors that may affect PR dissolution. Three major factors were selected in this study: 1) soil texture, 2) soil acidity, and 3) fertilization. Using the scores of the individual factors as independent variables, a stepwise regression analysis was performed to derive a PR dissolution function. The coefficient of determination (R2) reached 0.91**, and the magnitude of the different factors affect PR dissolution following the order of soil texture (54%) > soil acidity (43%) > fertilizer (3%). Fertilizer was not significant as a PR dissolution factor. |
| first_indexed | 2024-03-06T09:15:54Z |
| format | Article |
| id | upm.eprints-52430 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:15:54Z |
| publishDate | 2007 |
| publisher | Taylor & Francis |
| record_format | dspace |
| spelling | upm.eprints-524302017-06-06T08:44:14Z http://psasir.upm.edu.my/id/eprint/52430/ Analysis of phosphate rock dissolution determining factors using principal component analysis in some acid Indonesian soils Hilman, Yusdar Abdul Rahim, Anuar Musa, Mohamed Hanafi Hashim, Azizah Dissolution of phosphate rock (PR) materials and its subsequent phosphorus (P) availability to plants depend upon soil characteristics, PR characteristics, type of crops, and environmental conditions. Agronomic effectiveness of the PR sources has frequently been investigated in the field or in the greenhouse. This is time consuming and not cost-effective. Therefore, identification of the soil characteristics influencing the dissolution of PR is very important for direct application of P sources. The principal component analysis was used to summarize the characteristics of acid soils in an incubation system into a number of factors that may affect PR dissolution. Three major factors were selected in this study: 1) soil texture, 2) soil acidity, and 3) fertilization. Using the scores of the individual factors as independent variables, a stepwise regression analysis was performed to derive a PR dissolution function. The coefficient of determination (R2) reached 0.91**, and the magnitude of the different factors affect PR dissolution following the order of soil texture (54%) > soil acidity (43%) > fertilizer (3%). Fertilizer was not significant as a PR dissolution factor. Taylor & Francis 2007 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/52430/1/Analysis%20of%20phosphate%20rock%20dissolution%20determining%20factors%20using%20principal%20component%20analysis%20in%20some%20acid%20Indonesian%20soils.pdf Hilman, Yusdar and Abdul Rahim, Anuar and Musa, Mohamed Hanafi and Hashim, Azizah (2007) Analysis of phosphate rock dissolution determining factors using principal component analysis in some acid Indonesian soils. Communications in Soil Science and Plant Analysis, 38 (1-2). pp. 273-282. ISSN 0010-3624; ESSN: 1532-2416 http://www.tandfonline.com/doi/abs/10.1080/00103620601094239 10.1080/00103620601094239 |
| spellingShingle | Hilman, Yusdar Abdul Rahim, Anuar Musa, Mohamed Hanafi Hashim, Azizah Analysis of phosphate rock dissolution determining factors using principal component analysis in some acid Indonesian soils |
| title | Analysis of phosphate rock dissolution determining factors using principal component analysis in some acid Indonesian soils |
| title_full | Analysis of phosphate rock dissolution determining factors using principal component analysis in some acid Indonesian soils |
| title_fullStr | Analysis of phosphate rock dissolution determining factors using principal component analysis in some acid Indonesian soils |
| title_full_unstemmed | Analysis of phosphate rock dissolution determining factors using principal component analysis in some acid Indonesian soils |
| title_short | Analysis of phosphate rock dissolution determining factors using principal component analysis in some acid Indonesian soils |
| title_sort | analysis of phosphate rock dissolution determining factors using principal component analysis in some acid indonesian soils |
| url | http://psasir.upm.edu.my/id/eprint/52430/1/Analysis%20of%20phosphate%20rock%20dissolution%20determining%20factors%20using%20principal%20component%20analysis%20in%20some%20acid%20Indonesian%20soils.pdf |
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