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Fig. 1.3 |

Fig. 1.3

From: Aquaponics and Global Food Challenges

Fig. 1.3

The number of papers published on ‘hydroponics’, ‘RAS’ and ‘aquaponics’ from 1980 to 2018 (data were collected from the Scopus database on 30 January 2019). Please note that the scale for ‘RAS’ is one order of magnitude higher than that for ‘hydroponics’ and ‘aquaponics’

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