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Ameliorating effects of palm oil mill effluent on the chemical properties of soils and maize growth in pots


Citation

Jusop, Shamsuddin and Ng, C. C. and Z., Ahmad Ruzaini (1995) Ameliorating effects of palm oil mill effluent on the chemical properties of soils and maize growth in pots. Pertanika Journal of Tropical Agricultural Science, 18 (2). pp. 125-133. ISSN 0126-6128

Abstract / Synopsis

Highly weathered Malaysian soils are mostly acidic having high Al saturation and low Ca and/or l\1g contents. A leaching experiment in PVC columns and a pot trial were carried out to alleviate these acid soil infertilities by application of palm oil mill effluent (POME). The results of the leaching study showed that the topsoil pH, organic C and exchangeable Mg increased with increasing rate of POME application. Maize grew poorly on acidic Malaysian soils without any amendment. Relative plant top weight increased significantly as the pH (H2O and exchangeable Mg increased. On the other hand, the relative plant top weight decreased linearly as the exchangeable Al and Al saturation increased. With POME treatment, the critical pH (H20) for maize growth was 4.2 - 4.5, whereas the critical exchangeable Mg was 0.5 cmol/kg soil.


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Additional Metadata

Item Type: Article
Divisions: Universiti Pertanian Malaysia
Publisher: Universiti Putra Malaysia Press
Keywords: Acid soils; Aluminium; Magnesiwn; Maize
Depositing User: Nasirah Abu Samah
Date Deposited: 25 Nov 2009 11:00
Last Modified: 02 Sep 2015 13:23
URI: http://psasir.upm.edu.my/id/eprint/3284
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