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Recent hydro-morphological characteristics of the intensification during the post-monsoon (Rabi)
Meghna river around the Meghna bridge have been season is seriously constrained due to unfavourable
presented on the basis of measured field data. Deep soil moisture regime resulting from very little or no
scour holes have been developed near the upstream rainfall. The factors that control the farmers'
termination of the left abutment and around the decision process on whether to grow a Rabi crop or
piers close to the left bank. The non-uniform to keep the land fallow were studied in a rainfed
distribution of scour hole in the bridge section has lowland area in West Bangladesh. Two descriptive
been explained from the measured flow field models, one on the decision to grow a Rabi crop
resulting from meander bend and upstream sand and the other on what Rabi crop would be grown,
bar. were developed on the basis of a questionnaire
survey and discussions with the farmers. The crop
337 RAHMAN, R. (Institute of Water and water use and water availability from rainfall
Flood Management, BUET, Dhaka). Monitoring during the Rabi season were also studied. Analysis
Framework for Poverty Alleviation due to Water of profitability of Rabi crop has shown that even
Sector Interventions. IWFM Res. Bull., 2004, 70- under the adverse soil moisture.
79.
339 SALEH, A.F.M. (Institute of Water and
Water is a critical resource for poverty alleviation Flood Management, Bangladesh University of
in Bangladesh. There is a paramount need for Engineering and Technology (BUET), Dhaka);
management of this critical resource in a KHAN, M.A.K. & MAZID, M.A.(Bangladesh
comprehensive and strategic manner. The success Rice Research Institute, Joydebpur, Gazipur).
of a strategy requires a systematic approach to ANALYSIS OF WATER AVAILABILITY
monitoring and evaluating the progress in CONSTRAINT FOR CROP INTENSIFICATION
implementing the strategy. In this paper, linkages IN RAINFED LOWLAND RICE SYSTEMS.
between various water issues and poverty are IWFM Res. Bull ., 2001-2002, 3, 79-90.
discussed. A set of indicators is suggested for
monitoring the performance of water sector Rainfed lowland rice systems are
interventions from poverty alleviation perspective. predominantly single cropped due to uni-modal
The set of indicators consists of input, rainfall distribution and inaccessibility of
output/intermediate and outcome indicators for a irrigation. Crop intensification during the pre
number of water sector interventions in case of or post-rice season is therefore constrained due
flood, irrigation, erosion, storm surge, wetland, to limited water availability. In order to study
pollution and navigation. the present status of crop intensification and
water availability for crop growth, a three-year
338 SALEH, A.F.M. (Institute of Water and field study (2000-2002) was conducted in
Flood Control and Drainage Research, Bangladesh Northwest Bangladesh. The results show that
University of Engineering and Technology (BUET), chickpea is the dominant post-rice crop and is
Dhaka); KHAN, M.A.K. (Irrigation Water preferred by the farmers because of its drought
Management Division, Bangladesh Rice Research tolerance traits. The water availability for
Institute, Gazipur) & BHUIYAN, S.I. (Soil and growth of chickpea depends upon the pre-
Water Sciences Division, International Rice season rainfall, seeding time, residual soil
Research Institute, MCPO 3127, Mokati City, moisture and the seasonal rainfall. Chickpea is
Philippines). FARMERS’ DECISION MODEL grown in an adverse environment as only about
ABOUT CROP INTENSIFICATION IN A 34% and 26% of the crop evapotranspiration
RAINFED LOWLAND RICE SYSTEM. IWFM can be met in an average and dry year,
Res. Bull., 2001-2002, 3, 71-78. respectively. The yield of chickpea is very low
and is very much dependent on the seasonal
The production of a single rice crop under rainfed rainfall. Without any rainfall contribution, the
condition during the monsoon is the dominant average yield is 0.59 t/ha. Economic analysis
cropping pattern of the lowland rice systems. Crop has shown that chickpea production is highly
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