Changes in nitrogen and phosphorus concentrations of silicon-fertilized rice grown on organic soil.
1997
Deren C.W.
Rice grown on the organic soils of the Everglades is routinely fertilized with silicon (Si). The objective of this research was to investigate changes in nitrogen (N) and phosphorus (P) concentration in various plant parts in response to Si fertilization. Two cultivars were grown in lysimeters filled with low-Si soil. Half the lysimeters were fertilized with calcium silicate to provide 2Mg Si ha-1 and the other lysimeters remained unfertilized as a control. Nitrogen concentration decreased in all plant parts with Si fertilization. Phosphorus concentration increased with Si. Maturity was earlier in the Si fertilized rice.
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