An Evaluation on Different Salt Tolerant Boro Rice Varieties in Gher Areas of Bangladesh

Transcription

1 An Evaluation on Different Salt Tolerant Boro Rice Varieties in Gher Areas of Bangladesh A.K.M. Ferdous Senior Specialist- Agricultural Research & Development CSISA-BD, IRRI, Jessore Hub

2 Acknowledgement Cereal Systems Initiative for South Asia in Bangladesh (CSISA-BD) This study supported and conducted by the USAID funded CSISA-BD project and it s direct clients CSISA-BD is implemented through a partnership among three CGIAR centers- IRRI, CIMMYT and WorldFish aims to test and disseminate improved agricultural technologies to raise farming households income. GOBESHONA for creating scope to share climate change experiences

3 Outline 1. What is gher? 2. Context of gher areas 3.Experimental site 4. Background of experimental site 5. Objectives of the experiment 6. Methodology 7. Findings 8. Recommendation

4 Gher means an enclosure which is modified from rice field, building higher dikes, and excavating a canal several feet deep inside the periphery to retain water during the dry/boro season for prawn/shrimp and carp poly culture system.

5 Context of gher areas Total 7 districts (Bagerhat, Khulna, Satkhira, Jessore, Narail, Pirojpur, Gopalgonj) under gher area in South west of Bangladesh About 40% of total agricultural land under ghers (DAE & DoF) In non saline gher total 80% of gher land covered by BRRI dhan28 In saline gher 70% land covered by hybrid and 10% with inbred rice varieties, only shrimp/shrimp+carp poly culture in 10-20% land. Significant knowledge gap in management practice of rice cultivation like new varieties, transplanting time, seedling age, judicial fertilizer use Yield reduction by 40-90% due to salinity Potentiality: Variety and management practice

6 Experimental site Sufalakati union Santala village Kakbandhal village Keshabpur Jessore Bangladesh Map Map (Keshabpur Upazila) Map (Jessore District) Introduction of Sufalakati Union (ref. Census -2011) Direction: Southwest of Bangladesh Village: 17 Geographical loc.: N= and E= Literacy rate 49.92% Total land area: 14.0 sq.km. Agricultural dependant 69.44% Population: 19190

7 Background of experiment i) Before 2002 : Santala and Kakbandhal with another 12 villages surrounds Beel Khuksia. It was with sweet water and Aus/Aman, pulse & oil crops, water melon, Jute and natural fish in monsoon there. ii) From : Prawn in monsoon and BRRI dhan28/china in dry season iii) From : Saline water logged for 7 years since 2006 due to allow opening of sluice gate saline water canal. Sweet water Beel Khuksia becomes Saline water Beel Khuksia. Resulted saline siltation, no crops, no cultural fish. iv) Salinity effect on livelihood: Started struggle for lives and livelihoods in new environment. Community people became jobless, converted farmer to day labour and catching fish from saline beels. v) In December, 2012: Community raised embankments to protect tidal water. vi) In 2013: Excavated gher but already salinity in soil and water. Searching for proper rice and aquaculture practice with suitable verities.

8 Objectives To identify suitable salt tolerant boro rice varieties in saline Gher

9 Methodology Farmers participatory field experiment Treatments: BINAdhan8, BINA dhan10, BRRI dhan47, SL8H, Hira-1 (99-5) Experimental Design: RCBD (dispersedly replicated with 18 farmers) Season: Boro 2014 Average plot size: 100 m²

10 Findings

11 Monder Soriful Mohor Nozrul Razzak Mozahar Babul Izahar Saiful Quddus Izahar Seraz Afsar Siddiqur Liton Balu porimal Phul ds/m ds/m Water and soil salinity Trend of water Salinity from Dec 13 to Aug Canal Gher Soil salinity 2 0 Santala Kakbandhal Farmer Status of soil salinity in Santala and Kakbandhal village

12 Salinity effect at Seedling stage BRRI dhan28 Salt tolerant varieties (HV & SPV) BRRI dhan50

13 Yield [t/ha] Grain Yield Yield status of salt tolerant boro rice varieties Santala Kakbandhal BINA dhan8 BINA dhan10 BRRI dhan47 Hira-1 (99-5) SL8H

14 Average [$/ha] Cost and Return AGR APC BINA dhan8 BINA dhan10 BRRI dhan47 Hira-1 (99-5) SL8H Average Production Cost (APC) Vs. Average Gross Return (AGR)

15 Farmers Field Day Framer s preference was tested from rice field to table Rice Cooking & Taste Variety Preference by Farmers

16 Grain shattering Tendency SL8H Hira-1 (99-5) BINA dhan-10

17 BINA dhan-8 BRRI dhan47

18 Results of preference test From 2 Farmer s Field Day (N= M-81, F-29) Out of 5 varieties BINA dhan-10 chose by 70% farmers. Higher yield & market price Keeping seed by their own and cheaper From cooking and taste demonstration (N=M-26, F-15) BINAdhan-10 chose by - 80% farmers. Non sticky and good taste of steamed and fermented rice

19 Recommendations According to Farmer s preference BINAdhan-10 can be recommended for saline ghers due to more profit and better taste than those of other rice varieties tested. Joint effort of government departments, research organizations, development partners and private sectors to undertake substantial research, technology dissemination initiatives and supply quality inputs for continuous enhancement of this sector.

20 THANKS