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The Sulphur Nutrition of Coconut

  • M. A. T. De Silva (a1), Greta M. Anthonypillai (a1) and D. T. Mathes (a1)

Summary

The sulphur content in the sixth leaf from the apex of coconut palms was found to be the most sensitive index to sulphur treatments. Although the S concentration in this leaf correlated negatively with applied levels of S, the response curve was concave. Sulphur treatments increased the total yield of fruits and weight of copra, but decreased the weight of kernel per nut. The derived curve for yield versus S concentration in the tissue was C-shaped, attributed to growth dilution effects caused by enhanced initial growth following the restoration of a nutrient in minimum.

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References

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Paltridge, T. B. & Santhirasegaram, K. (1957). Coconut Research Institute (Ceylon) Bull. 12.
Santhirasegaram, K., Rajaratnam, N. & Ferdinandez, D. E. F. (1966). Ceylon Coconut Quart. 17, 42.
Southern, P. J. (1969). Oléagineux 24, 211.
Steenbjerg, F. & Jakobsen, S. T. (1963). Soil Sci. 95, 69.
Ulrich, A. & Hylton, L. O. Jr (1968). Plant and Soil 29, 274.
Velasco, J. R., De Guzman, E. V. & Mercado, B. T. (1960). Philippine Agric. 43, 548.

The Sulphur Nutrition of Coconut

  • M. A. T. De Silva (a1), Greta M. Anthonypillai (a1) and D. T. Mathes (a1)

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