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Plants 2018, 7(2), 41; https://doi.org/10.3390/plants7020041

Silicon Influences Soil Availability and Accumulation of Mineral Nutrients in Various Plant Species

1
Department of Ecology, Environment and Plant Sciences, Stockholm University, SE 106 91 Stockholm, Sweden
2
Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska Dolina B2, SK 842 15 Bratislava, Slovakia
*
Author to whom correspondence should be addressed.
Received: 28 March 2018 / Revised: 14 May 2018 / Accepted: 17 May 2018 / Published: 19 May 2018
(This article belongs to the Special Issue Role of Silicon in Plants)
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Abstract

Silicon (Si) effects on mineral nutrient status in plants are not well investigated. It is known that Si has a beneficial effect on plants under stressed conditions. The aim was to make a state of the art investigation of the Si influence: (1) on nutrient availability in four different soil types, namely clayish, sandy, alum shale and submerged soil; and (2) on accumulation of various nutrients in maize, lettuce, pea, carrot and wheat growing in hydroponics. Soil was treated with K2SiO3 corresponding to 80 and 1000 kg Si ha−1 and the nutrient medium with 100, 500, 1000 and 5000 μM Si. In general, Si effects were similar in all analyzed plant species and in all soil types tested. Results showed that, in soil, Si increased the availability of Ca, P, S, Mn, Zn, Cu and Mo and that of Cl and Fe tended to increase. The availability of K and Mg was not much affected by Si. Uptake from solution of S, Mg, Ca, B, Fe, and Mn increased; N, Cu, Zn and K decreased; P decreased/increased; and Cl and Mo was not influenced. Translocation to shoot of Mg, Ca, S, Mn, and Mo increased; Fe, Cu and Zn decreased; and K, P, N, Cl and B was not affected. It was concluded that, if plants had been cultivated in soil, Si-maintained increased availability of nutrients in the soil solution would probably compensate for the decrease in tissue concentration of those nutrient elements. The study shows that Si also influences the nutrient uptake in non-stressed plants. View Full-Text
Keywords: carrot; lettuce; maize; pea; nutrient accumulation; silicon; soil; uptake; wheat carrot; lettuce; maize; pea; nutrient accumulation; silicon; soil; uptake; wheat
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Greger, M.; Landberg, T.; Vaculík, M. Silicon Influences Soil Availability and Accumulation of Mineral Nutrients in Various Plant Species. Plants 2018, 7, 41.

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