Abstract
The effect of mycorrhizal inoculation on 15N transfer from soybean to maize was studied in fumigated and non-fumigated soil. Three Glomus species and a non-inoculated control were compared.
In spite of higher levels of root colonization and more abundant hyphae associated with plants growing in fumigated soil, mycorrhizae-enhanced 15N transfer to maize was significant only in non-fumigated plots. High 15N transfer was not only associated with high mycelium density in soil but also with low soil microbial carbon, suggesting that the effect of mycorrhizal fungi on soil microbial populations may be an important factor affecting N transfer between mycorrhizal plants.
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Hamel, C., Nesser, C., Barrantes-Cartín, U. et al. Endomycorrhizal fungal species mediate 15N transfer from soybean to maize in non-fumigated soil. Plant Soil 138, 41–47 (1991). https://doi.org/10.1007/BF00011806
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DOI: https://doi.org/10.1007/BF00011806