Preliminary study on limiting nutrients in seawater ponds

Yang Hong-sheng; Li De-shang; Xu Ning

doi:10.1007/BF02848730

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Preliminary study on limiting nutrients in seawater ponds

Updated：2023-05-16

- Preliminary study on limiting nutrients in seawater ponds
- Journal of Oceanology and Limnology Vol. 16, Issue 3, Pages: 243-248(1998)
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- DOI：10.1007/BF02848730
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- Published：1998
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Hong-sheng, Y., De-shang, L. & Ning, X. Preliminary study on limiting nutrients in seawater ponds., Chin. J. Ocean. Limnol. 16, 243–248 (1998). https://doi.org/10.1007/BF02848730
DOI：

Hong-sheng, Y., De-shang, L. & Ning, X. Preliminary study on limiting nutrients in seawater ponds., Chin. J. Ocean. Limnol. 16, 243–248 (1998). https://doi.org/10.1007/BF02848730 DOI：

摘要

Abstract

A method for monitoring biological production of oxygen was used in the July 10–September 15

1995 study on the limiting nutrients in eight land-based 5 m×5 m enclosures equipped with water stirrers in a seawater pond in the study region (Yellow Sea). Chicken manure only

chicken manure combined with chemical fertilizers

and chemical fertilizers only

were put into the enclosures

respectively. The results showed that phosphorus was the limiting nutrient; and that the optimal N:P ratio of the fertilizers was 7.25–7.54 (mean of 7.37)

which was significantly lower than the ratio measured in the water

as phosphorus deposited is easily absorbed by sediments and is excessively uptaken by phytoplankton. The above optimal N:P ratio is suitable for daily fertilization with combination fertilizer in the seawater ponds.

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references

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