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Articles by M.A. Sattar
Total Records ( 2 ) for M.A. Sattar
  M.M. Hossain , M.A. Sattar , M.A. Hashem and M.R. Islam
  A study was undertaken to determine the arsenic status of some selected soils in six thanas of three arsenic affected districts of Bangladesh. Eighteen soil samples taking three from each of 6 thanas representing 3 districts viz. Moulavibazar, Habiganj and Sylhet of Bangladesh were collected for the study. The soils were collected from 3 depths viz. 0-15, 15-30 and 30-45 cm from each location. The arsenic content in soils of Moulavibazar, Habiganj and Sylhet districts ranged from 1.32-31.89, 0-16.87 and 0.66-17.57 ppm, respectively. Out of 18 samples, arsenic content was noticed for 11 samples at 0-15 cm depth (1.98-25.76 ppm), 15 samples at 15-30 cm depth (3.96-30.68 ppm) and 14 samples at 30-45 cm depth (3.96-38.23 ppm). The highest arsenic content of 38.23 ppm was found at 30-45 cm depth in Sylhet district. Seven samples at 0-15 cm, 3 samples at 15-30 cm and 4 samples at 30-45 cm were free from arsenic contamination. Correlation study of arsenic contents of soils was done with some soil properties viz. sand, silt and clay contents, soil pH, EC and organic matter status. Results showed that arsenic content correlated significantly with different soil properties.
  Md. Ismail Hossain , M.A. Sattar , M.A. Monayem Mia , Shamsun Nahar Begum and M.S.K. Khan
  An ex-post rate of return analysis was considered to estimate the internal rate of return (IRR) to BARI-released improved varieties of mungbean that have been replaced the local varieties. The growth rate of area, production and yield before the release of mungbean varieties were 18.99, 20.85 and 1.86%, respectively. After the release of improved varieties of mungbean, the area and production were increased dramatically but their growth rates were not satisfactory for various reasons, which should be studied. The internal rate of return to total investment in both mungbean research and extension was calculated at 34%. It was found that in 1997-98, about 19% more mungbean production was made available because of the farmers` adoption of the BARI-released mungbean varieties. The potential relative yield of BARI Mung-2 over the local varieties was found 43% higher. The cost of production of high yielding varieties of mungbean was 49% higher than the local varieties. Under various assumptions about the magnitude of the benefits and the research and extension expenditures, the IRR ranged between 18 and 50%. This indicates that the funding of mungbean research and extension is a good investment.
 
 
 
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