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Article

Improving Productivity in Integrated Fish-Vegetable Farming Systems with Recycled Fish Pond Sediments

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Environmental Engineering and Management Research Group, Ton Duc Thang University, 19 Nguyen Huu Tho Street, Tan Phong Ward, District 7, Ho Chi Minh 72915, Vietnam
2
Faculty of Environment and Labor Safety, Ton Duc Thang University, Ho Chi Minh 72915, Vietnam
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Department of Crop Sciences, Loc Troi Groups of Vietnam, 23 Ha Hoang Ho Street, My Xuyen Ward, Long Xuyen 90108, Vietnam
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Department of Physical Geography and Bolin Center for Climate Research, Stockholm University, 10691 Stockholm, Sweden
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(7), 1025; https://doi.org/10.3390/agronomy10071025
Received: 27 May 2020 / Revised: 26 June 2020 / Accepted: 14 July 2020 / Published: 16 July 2020
The increasing intensification of aquaculture systems requires the development of strategies to reduce their environmental impacts such as pollution caused by the discharge of nutrient rich sediments into local water bodies. Recycling of fish pond sediments (FPS) as fertilizer has been proposed as a possible solution that may also reduce the reliance on synthetic fertilizers. With a case study in the Mekong Delta, Vietnam, we determined suitable mixtures of striped catfish (Pangasianodon hypophthalmus) pond sediment (PPS) and locally sourced organic amendments of rice straw (RS), or common water hyacinth (WH) to fertilize cucumber plants (Cucumis sativus L.) in an integrated cucumber–giant gourami fish (Osphronemus goramy) farming system. Highest nutrient concentrations were found when mixing 30% PPS with 70% RS or WH. When used in combination with chemical fertilizer, it was found that a 25% to 75% reduction in chemical fertilizer application could be achieved, while also increasing cucumber yields, with the highest yields found when RS was used in organic amendments. In combination with the additional income from fish production, integrated farming systems such as that demonstrated in this study, may increase both farm income and production diversity. View Full-Text
Keywords: pond sediments; organic fertilizer; mineral fertilizer; cucumber; integrated fish-vegetable farming; Mekong Delta pond sediments; organic fertilizer; mineral fertilizer; cucumber; integrated fish-vegetable farming; Mekong Delta
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MDPI and ACS Style

Thi Da, C.; Anh Tu, P.; Livsey, J.; Tang, V.T.; Berg, H.; Manzoni, S. Improving Productivity in Integrated Fish-Vegetable Farming Systems with Recycled Fish Pond Sediments. Agronomy 2020, 10, 1025. https://doi.org/10.3390/agronomy10071025

AMA Style

Thi Da C, Anh Tu P, Livsey J, Tang VT, Berg H, Manzoni S. Improving Productivity in Integrated Fish-Vegetable Farming Systems with Recycled Fish Pond Sediments. Agronomy. 2020; 10(7):1025. https://doi.org/10.3390/agronomy10071025

Chicago/Turabian Style

Thi Da, Chau, Phan Anh Tu, John Livsey, Van T. Tang, Håkan Berg, and Stefano Manzoni. 2020. "Improving Productivity in Integrated Fish-Vegetable Farming Systems with Recycled Fish Pond Sediments" Agronomy 10, no. 7: 1025. https://doi.org/10.3390/agronomy10071025

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