Use of green manure in Rwanda aquaculture

Credit: Fidele Kampayana (Rwanda):

The photos show cut plants piled in the corner of a fish pond during its decomposition (green manure). Cut plants when piled up in pond water, they rot and decompose easily offering optimum environments for bacterial growth. Also, as plants decompose, its contents of nutrients are released enhancing fish production through the growth of plankton (phyto and zooplankton). Live plants serve also in the fixation of pond dikes. Therefore, farm plants (live or cut) may play double roles in dike fixation and in fish nutrition.

Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture or more. This is expected and will be appreciated.

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