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https://ptsldigital.ukm.my/jspui/handle/123456789/576785| Title: | Effect of elemental sulphur timing and application rates on soil p release and concentration in maize |
| Authors: | Karimizarchi M Aminuddin H (UPM) Khanif M. Y Radziah O |
| Keywords: | Soil acidification Phosphorous Mn and Zn |
| Description: | 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.. |
| News Source: | Pertanika Journals |
| ISSN: | 1511-3701 |
| Volume: | 39 |
| Pages: | 235-248 |
| Publisher: | Universiti Putra Malaysia |
| URI: | https://ptsldigital.ukm.my/jspui/handle/123456789/576785 |
| Appears in Collections: | Journal Content Pages/ Kandungan Halaman Jurnal |
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|---|---|---|---|---|
| ukmvital_82292+Source01+Source010.PDF | 344.67 kB | Adobe PDF |  View/Open |
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