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

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

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Abstract

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.

Item Type:Article
Keyword:Acid soils; Aluminium; Magnesiwn; Maize
Faculty or Institute:Universiti Pertanian Malaysia
Publisher:Universiti Putra Malaysia Press
ID Code:3284
Deposited By: Nasirah Abu Samah
Deposited On:25 Nov 2009 11:00
Last Modified:02 Sep 2015 13:23

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