Impact of sulphur fertilisation on crop response to selenium fertilisation

J. L. Stroud; H. F. Li; F. J. Lopez-Bellido; M. R. Broadley; I. Foot; S. J. Fairweather-Tait; D. J. Hart; R. Hurst; P. Knott; H Mowat; K. Norman; P. Scott; M. Tucker; P. J. White; S. P. McGrath; F.-J. Zhao

doi:10.1007/s11104-009-0230-8

Impact of sulphur fertilisation on crop response to selenium fertilisation

J. L. Stroud, H. F. Li, F. J. Lopez-Bellido, M. R. Broadley, I. Foot, S. J. Fairweather-Tait, D. J. Hart, R. Hurst, P. Knott, H Mowat, K. Norman, P. Scott, M. Tucker, P. J. White, S. P. McGrath, F.-J. Zhao

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Abstract

UK wheat (Triticum aestivum L.) has a low selenium (Se) concentration and agronomic biofortification with Se is a proposed solution. A possible limitation is that UK wheat is routinely fertilised with sulphur (S), which may affect uptake of Se by the crop. The response of wheat to Se and S fertilisation and residual effects of Se were determined in field trials over 2 consecutive years. Selenium fertilisation at 20 g ha−1 as sodium selenate increased grain Se by four to seven fold, up to 374 µg Se kg−1. Sulphur fertilisation produced contrasting effects in 2 years; in year 1 when the crop was not deficient in S, grain Se concentration was significantly enhanced by S, whereas in year 2 when crop yield responded significantly to S fertilisation, grain Se concentration was decreased significantly in the S-fertilised plots. An incubation experiment showed that addition of sulphate enhanced the recovery of selenate added to soils, probably through a suppression of selenate transformation to other unavailable forms in soils. Our results demonstrate complex interactions between S and Se involving both soil and plant physiological processes; S can enhance Se availability in soil but inhibit selenate uptake by plants. Furthermore, no residual effect of Se fertiliser applied in year 1 was found on the following crop.

Original language	English
Pages (from-to)	31-40
Number of pages	10
Journal	Plant and Soil
Volume	332
Issue number	1-2
DOIs	https://doi.org/10.1007/s11104-009-0230-8
Publication status	Published - 2010

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Stroud, J. L., Li, H. F., Lopez-Bellido, F. J., Broadley, M. R., Foot, I., Fairweather-Tait, S. J., Hart, D. J., Hurst, R., Knott, P., Mowat, H., Norman, K., Scott, P., Tucker, M., White, P. J., McGrath, S. P., & Zhao, F.-J. (2010). Impact of sulphur fertilisation on crop response to selenium fertilisation. Plant and Soil, 332(1-2), 31-40. https://doi.org/10.1007/s11104-009-0230-8

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title = "Impact of sulphur fertilisation on crop response to selenium fertilisation",

abstract = "UK wheat (Triticum aestivum L.) has a low selenium (Se) concentration and agronomic biofortification with Se is a proposed solution. A possible limitation is that UK wheat is routinely fertilised with sulphur (S), which may affect uptake of Se by the crop. The response of wheat to Se and S fertilisation and residual effects of Se were determined in field trials over 2 consecutive years. Selenium fertilisation at 20 g ha−1 as sodium selenate increased grain Se by four to seven fold, up to 374 µg Se kg−1. Sulphur fertilisation produced contrasting effects in 2 years; in year 1 when the crop was not deficient in S, grain Se concentration was significantly enhanced by S, whereas in year 2 when crop yield responded significantly to S fertilisation, grain Se concentration was decreased significantly in the S-fertilised plots. An incubation experiment showed that addition of sulphate enhanced the recovery of selenate added to soils, probably through a suppression of selenate transformation to other unavailable forms in soils. Our results demonstrate complex interactions between S and Se involving both soil and plant physiological processes; S can enhance Se availability in soil but inhibit selenate uptake by plants. Furthermore, no residual effect of Se fertiliser applied in year 1 was found on the following crop.",

author = "Stroud, {J. L.} and Li, {H. F.} and Lopez-Bellido, {F. J.} and Broadley, {M. R.} and I. Foot and Fairweather-Tait, {S. J.} and Hart, {D. J.} and R. Hurst and P. Knott and H Mowat and K. Norman and P. Scott and M. Tucker and White, {P. J.} and McGrath, {S. P.} and F.-J. Zhao",

year = "2010",

doi = "10.1007/s11104-009-0230-8",

language = "English",

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pages = "31--40",

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T1 - Impact of sulphur fertilisation on crop response to selenium fertilisation

AU - Stroud, J. L.

AU - Li, H. F.

AU - Lopez-Bellido, F. J.

AU - Broadley, M. R.

AU - Foot, I.

AU - Fairweather-Tait, S. J.

AU - Hart, D. J.

AU - Hurst, R.

AU - Knott, P.

AU - Mowat, H

AU - Norman, K.

AU - Scott, P.

AU - Tucker, M.

AU - White, P. J.

AU - McGrath, S. P.

AU - Zhao, F.-J.

PY - 2010

Y1 - 2010

N2 - UK wheat (Triticum aestivum L.) has a low selenium (Se) concentration and agronomic biofortification with Se is a proposed solution. A possible limitation is that UK wheat is routinely fertilised with sulphur (S), which may affect uptake of Se by the crop. The response of wheat to Se and S fertilisation and residual effects of Se were determined in field trials over 2 consecutive years. Selenium fertilisation at 20 g ha−1 as sodium selenate increased grain Se by four to seven fold, up to 374 µg Se kg−1. Sulphur fertilisation produced contrasting effects in 2 years; in year 1 when the crop was not deficient in S, grain Se concentration was significantly enhanced by S, whereas in year 2 when crop yield responded significantly to S fertilisation, grain Se concentration was decreased significantly in the S-fertilised plots. An incubation experiment showed that addition of sulphate enhanced the recovery of selenate added to soils, probably through a suppression of selenate transformation to other unavailable forms in soils. Our results demonstrate complex interactions between S and Se involving both soil and plant physiological processes; S can enhance Se availability in soil but inhibit selenate uptake by plants. Furthermore, no residual effect of Se fertiliser applied in year 1 was found on the following crop.

AB - UK wheat (Triticum aestivum L.) has a low selenium (Se) concentration and agronomic biofortification with Se is a proposed solution. A possible limitation is that UK wheat is routinely fertilised with sulphur (S), which may affect uptake of Se by the crop. The response of wheat to Se and S fertilisation and residual effects of Se were determined in field trials over 2 consecutive years. Selenium fertilisation at 20 g ha−1 as sodium selenate increased grain Se by four to seven fold, up to 374 µg Se kg−1. Sulphur fertilisation produced contrasting effects in 2 years; in year 1 when the crop was not deficient in S, grain Se concentration was significantly enhanced by S, whereas in year 2 when crop yield responded significantly to S fertilisation, grain Se concentration was decreased significantly in the S-fertilised plots. An incubation experiment showed that addition of sulphate enhanced the recovery of selenate added to soils, probably through a suppression of selenate transformation to other unavailable forms in soils. Our results demonstrate complex interactions between S and Se involving both soil and plant physiological processes; S can enhance Se availability in soil but inhibit selenate uptake by plants. Furthermore, no residual effect of Se fertiliser applied in year 1 was found on the following crop.

U2 - 10.1007/s11104-009-0230-8

DO - 10.1007/s11104-009-0230-8

M3 - Article

VL - 332

SP - 31

EP - 40

JO - Plant and Soil

JF - Plant and Soil

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