Nutrients from salmon carcasses can be a useful fertilizer and increase the size of flowers. Simon Fraser University reports.
During a three-year fieldwork, experts fertilized soil with salmon carcasses at the mouth of a small river in British Columbia. The selected area has a large meadow with herbs and wildflowers.
“After our experiments, we found that some wildflowers produced larger leaves when grown in a fertilized field. “Buried salmon carcasses in some years caused some species to grow larger flowers or produce more seeds,” said Allison Dennert, the paper’s author.
In addition to salmon carcasses, experiments have been conducted with entrained seaweeds, which provide a different set of nutrients when added to the soil. Also salmon carcasses mixed with seaweed. Ascophyllum nodosum and added to the kidney where cinquefoil, yarrow, Douglas aster and castille grew. Fertilized plots were compared with ordinary plots where the soil composition corresponded to that of the field.
Comparison of the two groups showed that adding salmon carcasses resulted in larger leaves, particularly in Yarrow and Castille, and more seed formation in Yarrow in the third year. This study was done to find out how unrelated ecosystems interact with each other.
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Source: Gazeta
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