Biology · Soil Biology and Symbiosis
How does Casuarina equisetifolia primarily improve soil fertility in coastal areas?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Through ectomycorrhizal association with basidiomycete fungi
- 2By accumulating high organic humus from non-decomposable leaf litter
- 3By absorbing heavy metals and reducing soil salinity directly
- 4Through symbiotic nitrogen fixation in association with Frankia actinomycetes✓
Correct answer
Through symbiotic nitrogen fixation in association with Frankia actinomycetes
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