Application of Azolla in Crop Production

  • S. N. Talley
  • E. Lim
  • D. W. Rains


Rice paddies in Vietnam and southern China have been fertilized for centuries utilizing biological nitrogen fixation of the Azolla pinnata-Anabaena azollae association (Liu, 1979; Mishustin and Shil-Nikova, 1971). Within the past 25 years, research has expanded the areas of Azolla cultivation in China to 1,340,000 ha and to 400,000 ha in Vietnam (Liu, 1979; Tran and Dao, 1973), and the practice may spread to areas of high rainfall on the east coast of India (Singh, 1977; 1979). The principle advantage of cultivating Azolla rather than leguminous green manures is that the former can be cultivated simultaneously with rice (Liu, 1978).


Nitrogen Fixation Ammonium Sulfate Rice Paddy Rice Yield Exponential Growth Rate 
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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • S. N. Talley
    • 1
  • E. Lim
    • 1
  • D. W. Rains
    • 1
  1. 1.Department of Agronomy & Range Science and The Plant Growth LaboratoryUniversity of CaliforniaDavisUSA

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