Potassium, magnesium and copper status of some rice soils of Malaysia

Choudhury, A.T.M.A.; Khanif, Y.M.

Potassium, magnesium and copper status of some rice soils of Malaysia

2000

Choudhury, A.T.M.A. | Khanif, Y.M.

Study was undertaken to evaluate the K, Mg and Cu status of some rice soils of Malaysia. Soil samples were collected from different rice growing areas of the Muda Irrigation Scheme, Kedah. Samples were analyzed for exchangeable K, Mg and available Cu following standard procedures. The contents of K, Mg and Cu ranged from 0.08 to 0.44 cmol/kg, 0.09 to 6.17 cmol/kg and 0.04 to 3.10 mg/kg, respectively. Deficiency of K, Mg and Cu was found in 5, 4 and 7 soils, respectively. The average K and Mg contents of marine alluvial soils were higher than those of riverine alluvial soils. on the other hand the average Cu content in marine alluvial soils was lower than those of riverine alluvial soils. Statistical analysis indicated that the differences between the soil groups regarding K, Mg and Cu contents were significant.

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