Abstract
MANY experiments in controlled environments have shown that vesicular–arbuscular (VA) mycorrhizas may benefit the phosphorus uptake and growth of plants1–4, depending on the nature and level of indigenous inoculum, the phosphorus status of the soil and other factors5–7. But there have been few reports of attempts to obtain larger crops, or reduce phosphorus fertiliser requirement, by manipulation of VA mycorrhizal infection in field crops8–12. We report here the effect on potatoes of an artificial increase in the level of VA infection. Potatoes are known to have VA mycorrhizas13–16, and their sparse rooting systems17 and heavy phosphorus demand suggest that they should respond to infection. This is the first report of a successful field inoculation experiment on a major field crop in temperate zone conditions.
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BLACK, R., TINKER, P. Interaction between effects of vesicular–arbuscular mycorrhiza and fertiliser phosphorus on yields of potatoes in the field. Nature 267, 510–511 (1977). https://doi.org/10.1038/267510b0
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DOI: https://doi.org/10.1038/267510b0
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