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    Farooq, Muhammad Ansar and Dietz, Karl-Josef 2015. Silicon as Versatile Player in Plant and Human Biology: Overlooked and Poorly Understood. Frontiers in Plant Science, Vol. 6,

    Pontigo, Sofía Ribera, Alejandra Gianfreda, Liliana de la Luz Mora, María Nikolic, Miroslav and Cartes, Paula 2015. Silicon in vascular plants: uptake, transport and its influence on mineral stress under acidic conditions. Planta, Vol. 242, Issue. 1, p. 23.

    Guntzer, Flore Keller, Catherine and Meunier, Jean-Dominique 2012. Benefits of plant silicon for crops: a review. Agronomy for Sustainable Development, Vol. 32, Issue. 1, p. 201.

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    Jianfeng, M A and Takahashi, Eiichi 1991. Effect of silicate on phosphate availability for rice in a P-deficient soil. Plant and Soil, Vol. 133, Issue. 2, p. 151.

    Emadian, S.F. and Newton, R.J. 1989. Growth Enhancement of Loblolly Pine (Pinus taeda L.) Seedlings by Silicon. Journal of Plant Physiology, Vol. 134, Issue. 1, p. 98.

    OBIHARA, C. H. and RUSSELL, E. W. 1972. SPECIFIC ADSORPTION OF SILICATE AND PHOSPHATE BY SOILS. Journal of Soil Science, Vol. 23, Issue. 1, p. 105.

    Cheong, Y. Wong You and Halais, P. 1970. Needs of Sugar Cane for Silicon when Growing in Highly Weathered Latosols. Experimental Agriculture, Vol. 6, Issue. 02, p. 99.

    HARRIS, G. 1962. Barley and Malt.

    Cooke, G. W. 1956. The effect of some silicate slags on the utilization of soil and fertilizer phosphorus. Journal of the Science of Food and Agriculture, Vol. 7, Issue. 1, p. 56.


A preliminary note on the effect of sodium silicate in increasing the yield of barley

  • R. A. Fisher (a1)
  • DOI:
  • Published online: 01 March 2009

The addition of sodium silicate has been found to increase the yield of barley to a considerable extent, this effect being most marked when no superphosphate is added.

The phosphatic content of the ash is not greatly increased in the grain, and is diminished in one case in the straw; the conclusion from this observation that the silicate does not act by releasing soil phosphates, but as a plant stimulus, overlooks the fact that the addition of silica to the ash naturally reduces the percentage of other constituents, and should be discounted.

The phosphate removed annually in the crop is greatly increased on the plots receiving silicate, even when this removal has continued for many years without replacement.

That additional phosphate is actually made available to the crop on the plots receiving silicate is shown by the increase in the proportion of phosphate in the dry weight of the crop, which appears on all the plots, and at all periods.

This increase is quantitatively sufficient to account for the increased yield in grain and straw, without postulating the aid of any stimulus to plant growth.

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(1)A. D. Hall and C. G. T. Morison On the Function of Silica in the Nutrition of Cereals. Proc. Roy. Soc. (1906), B, 77, 455477. (Rothamsted Memoirs, vol. VIII.)

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