P. K. Sarkar
Principal Scientific Officer
IWM Division, BARI, Gazipur-1701
S. K. Biswas
Senior Scientific Officer
IWM Division, BARI, Gazipur-1701
M. Roknuzzaman
SO
SPGR Project, BARI,Gazipur-1701
S. C. Mandal
SO
SPGR Project, BARI,Gazipur-1701
F. Akhter
SO
RARS, BARI, Hathazari
This is a two year’ SPGR (NATP Phase 1) funded project (Project ID No. 334) aimed to develop a feasible methodology for improving irrigation performance through better water management and raising the efficiency of water use in the country. The field experiments were conducted on T. aman in the farmers' field during the Kharif season of 2011 (July –December) at Kakailkathi and Doari villages of Rajshahi region. A very popular variety 'Sharna' (an imported T. aman variety) was selected as the test crop for Kakailkathi experimental field. Due to excessive rainfall and off season showers during the late Kharif months, no significant difference in respect of grain yield was observed among the irrigated treatments. The grain yield ranged from 5.042 t/ha to as high as 5.73 t/ha. An extensive survey was conducted at three study regions (Dinajpur, Rajshahi and Chittagong districts) during October-November 2011 to know the existing farming system and adaptation techniques to climate change. The specific locations were Birganj upazila at Dinajpur, Godagari upazila at Rajshahi and Hathazari upazila at Chittagong districts, respectively. Based on the survey results, a few location specific promising cropping patterns were selected in respect of the project aim.
Water, irrigation, T. Aman
Kakailkathi and Doari, Rajshahi
Crop-Soil-Water Management
The objective of the study was to predict the impact of supplemental irrigation in the Rajshahi region
A number of field experiments were set up with T aman rice with a view to predict the impact of supplemental irrigation in the Rajshahi region. The field work was initiated in the farmers' field during the initial stage of Kharif season of 2011 (June –July). Two progressive farmers from the village Kakailkathi, under Motihar Upazila and one farmer from the village Doari under Paba Upazila of Rajshahi district were selected for the study. A very popular variety 'Sharna' (an imported T. aman variety) was selected as the test crop at Kakailkathi and 25 days aged seedlings were transplanted on 16 July 2011. Based on supplemental irrigation options, five treatments in total were selected for all the study locations. These were; T1: rainfed (no supplemental irrigation and treated as farmers' practice), T2: one supplemental irrigation, T3: two supplemental irrigations, T4: three supplemental irrigations and T5: four supplemental irrigations. Such a treatment setup was selected to find out the impact of supplemental irrigation on growth and yield at different growth stages. A structured questionnaire was developed to better understand the current scenario of irrigated agriculture in three project sites of Bangladesh, namely Dinajpur, Rajshahi and Chittagong.
BARI Annual Report 2011-2012
The major objectives of the survey were to identify the soil type, land use pattern for crops, opportunities and constraints to the agricultural and rural development. Detailed information about land use, soil type, cropping pattern, existing facilities and constraints and development needs were collected. Different features observed during the survey work are described in detail in the previous sections. Irrigation water is a major problem in the study areas. Harvesting rain water may supplement to some extent in this regard. The cost of irrigation is raising high in those areas. Due to lack of awareness about modern technologies and cultural practices the yield is comparatively low. The farmers informed that high temperature, erratic rainfall, drought and lack of irrigation are the major problems. To overcome these problems, excavation of mini ponds, renovation of existing ponds and canals for rainwater harvest using mulch on upland crops and introducing drought tolerant varieties are the more effective techniques for increasing crop production. Due to lack of proper marketing facilities, farmers do not get proper price of their products. This important issue must be addressed at a macro level within the public policy arena.
Report/Proceedings