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Effect of elemental sulphur timing and application rates on soil P release and concentration in maize


Karimizarchi, Mehdi and Husin, Aminuddin and Yusop, Mohd Khanif and Othman, Radziah (2016) Effect of elemental sulphur timing and application rates on soil P release and concentration in maize. Pertanika Journal of Tropical Agricultural Science, 39 (2). pp. 235-248. ISSN 1511-3701; ESSN: 2231-8542


High pH soil accounts for more that 30 percent of world's soils and poses problems to plant nutrient availability. As a cheap and readily available source of soil acidulates, elemental sulphur may be a useful material for alleviating some alkaline soil problems. To elucidate the role of elemental sulphur as a soil amendment for plant production in a high pH soil, maize plants were grown under greenhouse conditions for 45 days after 0, 20 and 40 days of soil incubation at different rates of elemental sulphur (0, 0.5, 1 and 2 g S kg-1 of soil). Soils were sampled two times (before and after planting) and subjected to soil pH and available P determination. The results showed with each unit increase in S rate, soil pH decreases by 1.52 units. In addition, while sulphur application increased available P before planting, it failed to increase P supply to maize at harvest. Supporting the role of elemental S on soil P availability, with increasing S application rate the P concentration in maize root, stem and leaves was successively decreased. This relationship can be explained by the dilution of P in increasing leaf biomass and the similar concomitant increase of both zinc and manganese nutrient concentrations with increasing sulphur application rate. Overall, soil acidification by elemental sulphur application resulted in P reduction in soil labile pools and intensified P deficiency in maize.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Publisher: Universiti Putra Malaysia Press
Keywords: Mn and Zn; Phosphorous; Soil acidification
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 02 Aug 2016 02:59
Last Modified: 02 Aug 2016 02:59
URI: http://psasir.upm.edu.my/id/eprint/29528
Statistic Details: View Download Statistic

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