Duckweed (Lemnaceae spp.) farming is gaining attention as a combination of water purifier and fish and animal food in developing countries.
| Title | Duckweed aquaculture : a new aquatic farming system for developing countries |
| Publication Type | Miscellaneous |
| Year of Publication | 1993 |
| Authors | Journey, W, Spira, W, Skillicorn, P |
| Edition | 2nd rev. ed. |
| Pagination | x, 76 p.: 1 box, 25 fig., 2 tab. |
| Date Published | 1993-01-01 |
| Publisher | World Bank |
| Place Published | Washington, DC, USA |
| ISBN Number | 082132067X |
| Keywords | animal feed, aquaculture, bangladesh mirzapur, cab92/1, carp, demonstration projects, duckweeds, economic aspects, fish culture, research, tilapia, wastewater treatment |
| Abstract | Duckweed (Lemnaceae spp.) farming is gaining attention as a combination of water purifier and fish and animal food in developing countries. Duckweed is a hardy plant, fast-growing, protein-rich and requires only simple technology. The manual gives an explanation of the biology of duckweed, and details the methods of duckweed farming. Organic wastes can be used as a nutrient source, and necessary trace minerals can be provided from unrefined sea salt. Crop management concerns include temperature extremes, nutrient loadings, nutrient balance and pH. These can be controlled via proper fertilization, irrigation, harvesting methods and buffering. A complete crop cover suppresses growth by competitive plants, such as algae. Duckweed-fed fish production systems, using either carp or tilapia are outlined. The last chapter mentions alternative uses for duckweed, constraints and future research needs. The annexes contain investment scenarios for duckweed farming and duckweed-fed fish farming. |
| Notes | 41 ref. |
| Custom 1 | 272.3 |
