Nitrogen nutrition of rice plants measured by growth and nutrient content in pot experiments. 4. Role of the water regime.

Authors

  • W. Dijkshoorn
  • M. Ismunadji

DOI:

https://doi.org/10.18174/njas.v21i3.17245

Abstract

[116.17.012:145.911].Available N in a flooded soil under rice was assessed by measuring N uptake by the plants. During flooding the supply of NH4 was unchanged but NO3 rapidly denitrified. When applied to a dry soil NH4 was nitrified but flooding caused the denitrification of NO3 to occur and the supply of N was roughly halved. A change in soil pH towards acidity (to pH 4.5) was sufficient to check nitrification and the loss of N from NH4 applied before flooding. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Published

1973-08-01

Issue

Vol. 21 No. 3 (1973)

Section

Papers

License

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