RICE FISH INTEGRATED FARMING

Presentation On

Nazmul Ahmed OliRegistration No. 12-

05-2835MS Student

Department of Aquaculture

Bangabandhu Sheikh Mujibur Rahman Agricultural University

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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

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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?

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History of Rice-Fish culture is quite old.

First started in ancient China about 2000 years ago.

History

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Traditional system

Small ditches

Attract wild fishes

Fry of Carpio

Low Production

50 kg per hectare

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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.

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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

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Concurrent system- Rice and fish are cultured simultaneously

Alternate system – Fish is cultured after harvesting of rice.

Rice-Fish Culture Systems

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Boro Season

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Aman Season

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Alternate system

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Selection of Suitable Rice Field

• 4-5” of water for at least 3-4 months

• Sticky and loamy soil

• Close to home

• High dykes

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Fig: Field diagram for rice-field culture

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• 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

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Field preparation for rice planting:

Fig: Applying fertilizer to the field

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Management of Irrigation

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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.

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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

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Uses of Lime:

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Amount of lime to be applied

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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.

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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).

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Stocking density

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Stocking time

• Right after transplant of rice seedling

• Minimum of 4-5 inches of water

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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

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Fish Harvesting And Marketing

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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.

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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.

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Thank YouVery Much