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首页> 外文期刊>Pertanika Journal of Tropical Agricultural Science >Effects of Elemental Sulphur Application Rates on Soil Al 3+ Solubility and Its Concentration in Maize Plants ( Zea mays L.)
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Effects of Elemental Sulphur Application Rates on Soil Al 3+ Solubility and Its Concentration in Maize Plants ( Zea mays L.)

机译：元素硫应用速率对玉米植物土壤溶解度及其浓度的影响（Zea mays L.）

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摘要

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.
机译：进行温室实验以阐明由于在孵育后0,20和40天在Al3 +溶解度上施加不同剂量的元素硫（0,0.5,1.0和2.0g SKG-1土壤）的施加。玉米植物在用元素S的土壤处理后生长，并使其生长45天。结果表明，添加元素硫的添加显着增加了土壤酸度;每个G S降低土壤pH值1.52个单位。土壤中的Al3 +浓度从7.3至约5的pH值保持不变，并且经历了22000次以7.03〜6.29的土壤酸化，根部Al3 +浓度增加41.83％进一步的土壤酸化没有显着影响。土壤酸化逐渐降低茎中的Al3 +浓度，但它未能影响叶子中的Al3 +浓度。温室条件下没有Al3 +毒性风险的玉米硫的最佳速率为0.82g S kg-1土壤。需要在现场条件下进行进一步的评估。

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