rice fish integrated farming presentation
TRANSCRIPT
RICE FISH INTEGRATED FARMING
Presentation On
Nazmul Ahmed OliRegistration No. 12-
05-2835MS Student
Department of Aquaculture
Bangabandhu Sheikh Mujibur Rahman Agricultural University
2
Bangladesh is one of the most densely populated
countries in the world.
Three million people being added each year
Rice production : 29 million tons/year.
Fish production : 2.70 million tons/year .
Integrated rice-fish farming offers a solution.
Introduction
3
A rice-fish system is an integrated rice field or rice
field/pond complex, where fish are grown concurrently
or alternately with rice.
What is a rice-fish system?
4
History of Rice-Fish culture is quite old.
First started in ancient China about 2000 years ago.
History
5
Traditional system
Small ditches
Attract wild fishes
Fry of Carpio
Low Production
50 kg per hectare
6
Advantage
Production of fish as additional crop.
Insect or pest controlled
Fecal or semi-fecal materials serve as fertilizer
More profitable than rice cultivation alone.
Easy technology and low cost involvement..
Great acceptability especially to the rural people.
7
Disadvantages
Maintaining suitable water level for fish culture
Fish might escape or die due to floods or disease.
Theft of fish. Predators such as snake, frog, kite may eat
fish. Restricted pesticide use in control of pests
8
Concurrent system- Rice and fish are cultured simultaneously
Alternate system – Fish is cultured after harvesting of rice.
Rice-Fish Culture Systems
9
Boro Season
10
Aman Season
11
Alternate system
12
Selection of Suitable Rice Field
• 4-5” of water for at least 3-4 months
• Sticky and loamy soil
• Close to home
• High dykes
13
Fig: Field diagram for rice-field culture
14
• Top 3.5-4 inches of soil is used for cultivation
• Plough and laddering of 3-5 times is enough
• Thick and muddy/clayish
Field preparation for rice planting:
Fig: Rice field preparation
15
Field preparation for rice planting:
Fig: Applying fertilizer to the field
16
Management of Irrigation
17
High-yielding rice variety • • BR 11 (Mukta) • • BR 14 (Gazi) • • BR- 3 (Biplob) • • BR- 16 (Shahi Balam) • • BR- 20 (Nijami)• • BR- 20 (Rohmat)• • BR- 26 (Srabinee)• • BR- 27• • BR- 28 • • BR- 29 • • BR- 32 • • BR- 33 etc.
18
Liming
Firstly: To keep the soil and water pH suitable for fish and to keep the water hardness more than 20 mg/liter.
Secondly: To prevent infestation by parasites and germs
19
Uses of Lime:
20
Amount of lime to be applied
21
Suitable Fish Species
• Fast growing species • Can survive in shallow water • Can withstand temperature and environmental
fluctuation • Can be managed easily, such as, Tilapia, Common
Carp, Ruhi, Mrigel, Thai Sorpunti and Bata fish. • It can be mono or poly culture in rice field.
22
Species selection
• White fish (small plant or plankton eating species) such as Danios, Barbs (Puntius),
• Black fish (often carnivorous air breathers that can survive low or no oxygen levels) such as Snakehead (Channa), Catfish (Clarias), Climbing Perch (Anabas), Spiny eels (Mastacembelus), and Sheatfish (Ompok).
• Introduced exotic fish species such as Common Carp (Cyprinus), Tilapia (Oreochromis), and Silver carp (Hypophthalmichthys).
23
Stocking density
24
Stocking time
• Right after transplant of rice seedling
• Minimum of 4-5 inches of water
25
Post Stocking Management
Feed and Fertilizer Management
• Rice bran, wheat bran, duckweed, Agolla• 2-3% of total fish biomass• Mustard oilcake : rice bran = 1:2• Fertilizer
26
Fish Harvesting And Marketing
27
Recent Development in Bangladesh
• Since 90s, several NGOs worked on Rice-Fish culture and both nursery and table fish are producing through this technique.
• Major fish species used are Labeo rohita(Rui), Catla catla (Catla), Cirrhina mrigala (Mrigel),Cyprinus carpio (Common and Mirror carp),Hypophthalmichthys motitrix (Silver carp), Tilapia sp.(Tilapia), Thai barb (Puntius gonionotus).
• Production is much higher than traditional system which is about 200 kg/ha.
28
Conclusion
Offers tremendous potential for food security and poverty alleviation in rural areas.
Government should give more emphasize on this sector.Applied research in areas such as small indigenous fish
farming in rice fields need to be given particular attention.Research required on social, economic, environmental, and
livelihood issues for the adoption of rice-fish farming in rural Bangladesh.
29
Thank YouVery Much