Evaluation of potassium, magnesium and copper status of some rice soils under Muda Irrigation Scheme
1998
Choudhury, A.T.M.A. | Mohd Khanif Yusop
Potassium, magnesium and copper contents of some rice soils under Muda Irrigation Scheme were determined by standard procedures. The contents of K, Mg ad Cu ranged from 0.12 to 0.44 cmolc/kg, 0.09 to 6.17 cmolc/kg and 0.04 to 3.10 mg/kg, respectively. Deficiency of K, Mg, and Cu was found in 4, 3 and 6 soils, respectively. The average K and Mg contents of marine alluvial soils were higher than those of the riverine alluvial soils. On the other hand, the average copper content in marine alluvial soils was lower than that of riverine alluvial soils. The difference between the two soil groups regarding either K or Mg content was not significant whereas, Cu contents of the two soil groups differed significantly.
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