European Journal of Environment and Earth Sciences
Reliable hydraulic parameters values are essential and crucial basic data for potential groundwat... more Reliable hydraulic parameters values are essential and crucial basic data for potential groundwater withdrawal (aquifer yield) and also for sustainable groundwater management. They are also essential for simulation model study for different management scenario analyses. The laboratory test has limitations, while in situ tests produce representative aquifer parameters. The pumping test method is the only method that provides simultaneous information on the hydraulic behavior of the well, the aquifer, and the aquifer boundaries. Pumping tests were performed to determine aquifer hydraulic properties such as hydraulic conductivity (K), transmissibility (T), and specific yield (Sy) at two Upazilas of the Barind area, namely Nachol and Niamatpur. The aquifer formation is composed of layers: upper fine sand, medium sand, a conductive sand layer, and lower fine sand at the bottom, below which the impervious clay layer exists. The K was determined through Dupit’s steady radial flow equation,...
Research in Agriculture Livestock and Fisheries, 2015
Efficient use of water is essential for sustainable crop production and achieving food security e... more Efficient use of water is essential for sustainable crop production and achieving food security especially where water is a scarce resource. A study was conducted at a farmer's field near Rahmatpur, Mymensingh, Bangladesh during November 2012-February 2013 to study the effect of irrigation on the yield and yield attributes of three newly developed mustard varieties, namely Binasarisha-7 (Brassica juncea L), Binasarisha-8 (Brassica juncea L), and Binasarisha-4 (Brassica napus L). The experimental soil was silty clay with a bulk density of 1.43 g cm-3. There were four irrigation treatments (T1: no irrigation; T2: irrigation at vegetative stage; T3: irrigation at flowering stage; T4: irrigation at vegetative and flowering stage), each replicated three times in a split plot design. Irrigation showed significant effect on the yield attributes of the mustard varieties. The highest yield of 1.43 t ha-1 (46% higher over control) was obtained in treatment T4 of variety Binasarisha-7. The lowest yield of 0.63 t ha-1 was obtained in treatment T1 (control) of variety Binasarisha-4. For producing seed yield Binasarisha-4 was the most responsive to the irrigation treatments (T2-T4). In contrast, the yield differences among the stage-wise irrigation treatments (T2-T4) were not statistically significant for Binasarisha-8. The highest water use efficiency of 0.48 t ha-1 cm-1 was obtained in treatment T1 and the lowest of 0.28 t ha-1 cm-1 was in treatment T4. For cultivation of the mustard varieties Binasarisha-4, Binasarisha-7 and Binasarisha-8 in this type of climate, irrigation at vegetative and flowering stage may be recommended to produce higher yield. To cite this article: Khatun M, P Biswas, MM Hasan, NN Karim and MGM Amin, 2015. Yield of three newly developed mustard varieties as affected by irrigation at different growth stages. Res. Agric. Livest. Fish. 2 (2): 13-22.
Among various water cycle characteristics, groundwater recharge is the leading hydrologic paramet... more Among various water cycle characteristics, groundwater recharge is the leading hydrologic parameter determining groundwater resources availability and sustainability. Accurate estimation of groundwater recharge is important for proper development and management of the resource. Groundwater recharge was estimated under field condition at Ishwardi region of Bangladesh using tracer technique as well as water-balance method. Two years average recharge rate was found as 53.7 mm/year under tracer technique (5.14%o of yearly rainfall); and 46.2 mm under water balance method (4.42% of yearly rainfall). The results of the study will be helpful for planning of sustainable groundwater in the area.
European Journal of Environment and Earth Sciences
Reliable hydraulic parameters values are essential and crucial basic data for potential groundwat... more Reliable hydraulic parameters values are essential and crucial basic data for potential groundwater withdrawal (aquifer yield) and also for sustainable groundwater management. They are also essential for simulation model study for different management scenario analyses. The laboratory test has limitations, while in situ tests produce representative aquifer parameters. The pumping test method is the only method that provides simultaneous information on the hydraulic behavior of the well, the aquifer, and the aquifer boundaries. Pumping tests were performed to determine aquifer hydraulic properties such as hydraulic conductivity (K), transmissibility (T), and specific yield (Sy) at two Upazilas of the Barind area, namely Nachol and Niamatpur. The aquifer formation is composed of layers: upper fine sand, medium sand, a conductive sand layer, and lower fine sand at the bottom, below which the impervious clay layer exists. The K was determined through Dupit’s steady radial flow equation,...
Research in Agriculture Livestock and Fisheries, 2015
Efficient use of water is essential for sustainable crop production and achieving food security e... more Efficient use of water is essential for sustainable crop production and achieving food security especially where water is a scarce resource. A study was conducted at a farmer's field near Rahmatpur, Mymensingh, Bangladesh during November 2012-February 2013 to study the effect of irrigation on the yield and yield attributes of three newly developed mustard varieties, namely Binasarisha-7 (Brassica juncea L), Binasarisha-8 (Brassica juncea L), and Binasarisha-4 (Brassica napus L). The experimental soil was silty clay with a bulk density of 1.43 g cm-3. There were four irrigation treatments (T1: no irrigation; T2: irrigation at vegetative stage; T3: irrigation at flowering stage; T4: irrigation at vegetative and flowering stage), each replicated three times in a split plot design. Irrigation showed significant effect on the yield attributes of the mustard varieties. The highest yield of 1.43 t ha-1 (46% higher over control) was obtained in treatment T4 of variety Binasarisha-7. The lowest yield of 0.63 t ha-1 was obtained in treatment T1 (control) of variety Binasarisha-4. For producing seed yield Binasarisha-4 was the most responsive to the irrigation treatments (T2-T4). In contrast, the yield differences among the stage-wise irrigation treatments (T2-T4) were not statistically significant for Binasarisha-8. The highest water use efficiency of 0.48 t ha-1 cm-1 was obtained in treatment T1 and the lowest of 0.28 t ha-1 cm-1 was in treatment T4. For cultivation of the mustard varieties Binasarisha-4, Binasarisha-7 and Binasarisha-8 in this type of climate, irrigation at vegetative and flowering stage may be recommended to produce higher yield. To cite this article: Khatun M, P Biswas, MM Hasan, NN Karim and MGM Amin, 2015. Yield of three newly developed mustard varieties as affected by irrigation at different growth stages. Res. Agric. Livest. Fish. 2 (2): 13-22.
Among various water cycle characteristics, groundwater recharge is the leading hydrologic paramet... more Among various water cycle characteristics, groundwater recharge is the leading hydrologic parameter determining groundwater resources availability and sustainability. Accurate estimation of groundwater recharge is important for proper development and management of the resource. Groundwater recharge was estimated under field condition at Ishwardi region of Bangladesh using tracer technique as well as water-balance method. Two years average recharge rate was found as 53.7 mm/year under tracer technique (5.14%o of yearly rainfall); and 46.2 mm under water balance method (4.42% of yearly rainfall). The results of the study will be helpful for planning of sustainable groundwater in the area.
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