NDLI: High environmental risk and low yield of urban tomato gardens in Benin

Content Provider	Springer Nature Link
Author	Perrin, Aurélie Basset Mens, Claudine Huat, Joël Yehouessi, Wilfried
Copyright Year	2014
Abstract	In sub-Saharan Africa, urban farmers have recently intensified the production of vegetables to cope with the increasing food demand. As a consequence, such an intensification may lead to potential risks for the environment and human health. There is therefore a need for an integrated evaluation of urban agricultural practices. Here, we studied tomato production in Benin cities. We measured performances and the environmental risks. We have monitored 12 cropping systems during 6 months and we calculated the pesticide treatment frequency index (TFI), the nutrient budgets, and the field emissions. Our results show that yields were low and variable, averaging at 9,533 kg.ha$^{−1}$ and ranging from 0 to 21,163 kg.ha$^{−1}$. The average TFI for pesticides was 8.9. The maximum TFI of 25 was observed for an insecticide applied weekly at 2.3 times the official rate. We observed an excess of the average nutrient budget of 120 kg N and 84 kg P. ha$^{−1}$. In conclusion, our study of urban tomato production revealed poor practices and high risks for health and the environment.
Starting Page	305
Ending Page	315
Page Count	11
File Format	PDF
ISSN	17740746
Journal	Agronomy for Sustainable Development
Volume Number	35
Issue Number	1
e-ISSN	17730155
Language	English
Publisher	Springer Paris
Publisher Date	2014-08-22
Publisher Institution	Institut National de la Recherche Agronomique (INRA)
Publisher Place	Paris
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Urban agriculture Life-cycle inventory Typology Cropping system data Treatment frequency index Nutrient budget Agriculture Soil Science & Conservation Sustainable Development
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Agronomy and Crop Science

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