Nitrogen, Phosphorus and Potassium Uptake by Lowland Rice and Its Relation to Yields on Some Nigerian Alluvial Soil1
- Th. J. Bredero2
The linear part of the yield/N uptake curves plotted for two different soils indicates that N is taken up by rice independently of the pattern and rate of N applications as long as sufficient N is available for uptake by the plant. N uptake determines P and K uptake as long as P and K are sufficiently available in the soil. Surplus applications of P build up considerable soil reserves of total and available P which, above a critical level, become detrimental for yields.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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