Practical Manual on Better Management Practices for Tambak ...

VI. WATER MANAGEMENT PRACTICES1. EXCHANGE WATER CAREFULLY• Do not exchange or in-take water frequently.• For first month, there should not be any water exchange. Starting secondmonth, if necessary, water exchange can be done but try to minimize it as muchas possible.• Release the water when the plankton bloom is too thick (dark green water).• When releasing the water disturb the pond bottom near the water gate torelease the black coloured organic waste from the pond.• Do not release or in-take more than 15-30 cm depth of water per day.• Take the water in only when there is no disease in the tambak cluster.• Always use double layer water filter net of 300 micron mesh size to filter thein-take water.• Use agricultural lime after every water intake / exchange and after rains. It actsas a buffering agent for water.• If there is foam on the water surface or if the water colour suddenly changesor becomes clear then exchange 5-10 cm of water and add agriculture lime(200-300 kg/ha).Better Management Practices for Tambak Farming in Aceh | 38