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Effects of elemental sulphur application rates on soil Al3+ solubility and its concentration in maize plants (Zea mays L.)


Citation

Karimizarchi, Mehdi and Husin, Aminuddin and Yusop, Mohd Khanif and Othman, Radziah (2017) Effects of elemental sulphur application rates on soil Al3+ solubility and its concentration in maize plants (Zea mays L.). Pertanika Journal of Tropical Agricultural Science, 40 (4). pp. 507-520. ISSN 1511-3701; ESSN: 2231-8542

Abstract

A greenhouse experiment was conducted to elucidate the influence of soil acidification due to application of different doses of elemental sulphur (0, 0.5, 1.0 and 2.0 g S kg-1 soil) on Al3+ solubility at 0, 20 and 40 days after incubation. Maize plants were grown after soil treatment with the elemental S and were allowed to grow for 45 days. The results showed that addition of elemental sulphur significantly increased the soil acidity; each g S decreased soil pH for 1.52 units. The Al3+ concentration in soil remained rather unchanged from the pH value of 7.3 to around 5 and experienced a 22000-time increase at the pH value of 4. Soil acidification from the background of 7.03 to 6.29 resulted in 41.83% increase in root Al3+ concentration and it was not significantly affected with further soil acidification. Soil acidification progressively decreased Al3+ concentration in the stem but it failed to affect Al3+ concentration in the leaves. The optimum rate of sulphur for maize without the risk of Al3+ toxicity under greenhouse conditions was 0.82 g S kg-1 soil. Further evaluation under field conditions is required.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Publisher: Universiti Putra Malaysia Press
Keywords: Soil acidification; Al3+ toxicity; Maize growth
Depositing User: Nabilah Mustapa
Date Deposited: 11 Jan 2018 04:41
Last Modified: 25 Jan 2018 09:47
URI: http://psasir.upm.edu.my/id/eprint/58342
Statistic Details: View Download Statistic

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