Obstacles to Low Quality Water Irrigation of Food Crops in Morogoro, Tanzania

Abstract

Knowledge on users' and regulators' views regarding obstacles on the use of low quality water forms the basis for the improvement of water reuse in food crops irrigation. A qualitative study was conducted to assess the obstacles to the use of low quality water for irrigation of food crops in urban and peri-urban areas in Tanzania. The study considered Morogoro urban and peri-urban areas as a case study due to the existence of paddy and vegetable production using the effluent from the waste stabilisation ponds. Both primary and secondary data were used. Primary data were collected through in-depth interviews with 22 key informants, and 4 focus group discussions with farmers. Content analysis was used in this study. Findings show that domestic wastewater was poorly disposed, waste stabilisation ponds as treatment facilities had limited management, and quality monitoring of effluent from the waste stabilisation ponds was limited to permit safe use of the effluent in food crops irrigation. The government officials were of the view that the effluent from the waste stabilisation ponds should not be used for leafy vegetables irrigation while farmers viewed vegetables farming as a quick source of income and livelihood strategy for many years. The study therefore suggests that the relevant agencies should improve the treatment of wastewater and quality monitoring of the effluent for safe use of low quality water for food crops irrigation in urban and peri-urban areas.

Impacts of irrigation water quality, associated soils characteristics and on-farm practices on paddy yields

“…Irrigation water quality has been reported to influence paddy yields negatively or positively (Samson et al, 2017;Samson et al, 2018). The quality of irrigation water can be influenced by parent rock material, effluents from wastewater originating from institutions, hospitals and industries (Qadir et al, 2008).…”