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Effects of Liming and Soil pH on Guinea Grass (Panicum maximum) in Malaysian Tropical Oligotrophic Peat

  • W. Y. Chew (a1), C. N. Williams (a1), L. Ismail (a1) and K. Ramli (a1)

Summary

In a three-year field experiment on acid peat (pH 3.47) up to 12 t/ha lime increased peat pH (0–30 cm depth) by 0.061/t. Annual guinea grass dry matter increased in quadratic relation with liming up to pH 4.20 (12 t/ha lime) but there was no difference between the cvs Sigor and Colonoa. Liming decreased the N, P and K, but increased the Ca and Mg contents of the harvested grass. Liming also increased the uptake of all five nutrients investigated, either linearly or curvilinearly.

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References

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Chew, W. Y., Joseph, K. T. & Ramli, K. (1978). Expl Agric. 14:105112.
Chew, W. Y. & Ramli, K. (1979). MARDI Res. Bull., Malaysia. (in press).
Chew, W. Y., Williams, C. N., Joseph, K. T. & Ramli, K. (1976). Trop. Agric., Trinidad 53:6978.
Eck, P., Drake, M. & Stechel, J. E. (1957). Soil Sci. 84:145154.
Hupkens van der Elst, F. C. C. (1972). Proc. 4th Internat. Peat Congr. 3:2136, Helsinki, Finland.
Jacobson, L., Overstreet, R., King, H. H. & Hadley, R. (1950). Plant. Physiol. 25:639647.
Troug, E. (1951). In Mineral Nutrition of Plants. (Ed. Troug, E.). Univ. Wisconsin Press: Madison, USA.

Effects of Liming and Soil pH on Guinea Grass (Panicum maximum) in Malaysian Tropical Oligotrophic Peat

  • W. Y. Chew (a1), C. N. Williams (a1), L. Ismail (a1) and K. Ramli (a1)

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