Agronomic Performance of Modern Rice Varieties in South-west Bangladesh

Salam, Md. Tareq Bin; Karmakar, Biswajit; Hossain, Md. Sanower; Robin, M. H.; Mariam, Most. Zannatul; Hossain, Mokter

doi:10.14719/pst.2019.6.4.632

Cited by 7 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dumuria is situated in south-western part of the country and traditionally enriched with rice cultivation due to its high soil productivity. High application of agricultural inputs causes the major destruction of soils here that accumulates a large number of heavy metals in soil [15]. Due to the accumulation of heavy metals, there is a chance to accumulate the heavy metals in rice grain that may lead the potentially life-threatening diseases [16,17].…”

Section: Introductionmentioning

confidence: 99%

Ecological risk of heavy metal in agricultural soil and transfer to rice grains

et al. 2021

Self Cite

View full text Add to dashboard Cite

Higher accumulation of heavy metals in food grains is one of the leading problems for carcinogenic effects in the body. That’s why; scientists have taken this problem as a potential indicator for ensuring safe food. The present study was carried out to assess the ecological risk of heavy metals such as nickel, copper, arsenic, lead, and manganese in agricultural soil and transfer status to rice grain. Soil samples were collected from four agricultural fields at different times in the Dumuria Upazila under Khulna district in Bangladesh. Heavy metal concentration in soil extracts, irrigation water samples, and grain samples was determined by Atomic Absorption Spectrometer. Average metal concentrations in soil were calculated and compared with the reference value in soil. In most cases, heavy metals in agricultural soil (Ni: 61.73–94.52 mg/kg; Cu: 23.33–37.5 mg/kg; As: 7.53–19.63 mg/kg; Pb: 15.17–29.19 mg/kg; Mn: 322.98–478.45 mg/kg) were greater than the reference soil (Ni: 13.08–24.55 mg/kg; Cu: 10.35–13.28 mg/kg; As: 1.87–4.61 mg/kg; Pb: 4.88–8.27 mg/kg; Mn: 52.17–74.3 mg/kg). Overall risk index stated that the examined soils were at moderate risk of contamination. Transfer Factor of arsenic (0.018–0.032 mg/kg) and manganese (0.059–0.155 mg/kg) was higher from soil to rice grain. On the other hand, transfer factor of lead was found negligible that is a good sign of improvement. The findings of the study will be good documentation for planning, risk assessment, and decision-making by environmental managers in this region.

show abstract

Section: Introductionmentioning

confidence: 99%

Ecological risk of heavy metal in agricultural soil and transfer to rice grains

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…TRM has a potential influence on extending agriculture because of decreasing waterlogging (Khadim et al, 2013;Paul et al, 2013;Cornwall, 2018;Mutahara et al, 2018;Gain et al, 2019a). Due to waterlogging and intrusion of saline water in the agricultural land, soil salinity is increasing sharply in the southwestern part of the country (Salam et al, 2019) and almost 30% of the cultivable land has already been contaminated with the salinity (Khatun et al, 2019). Hossain and Salam (2019) mentioned that the physicochemical properties of the soil in the southwestern part of the country are hampered by various degree of salinity.…”

Section: Introductionmentioning

confidence: 99%

Environmental and Institutional Impacts of Tidal River Management: A Case Study on Pakhimara Tidal Basin in Southwestern Bangladesh

Salam

Amin

Afroz

et al. 2021

Caraka Tani J. Sustain. Agric.

View full text Add to dashboard Cite

<p>People in southwestern Bangladesh have been facing the waterlogging problem and protesting on the impacts for the nature for a long time. In the 1960s, the government introduced polders, embankments and cross dams to overcome the destructive scenario. Due to the failure of government initiatives, the local people of the coastal area cut into the polder so that the sediment deposited within the beel known as Tidal River Management (TRM). Then, TRM was applied several times in different catchments. The study was carried out from December 2018 to November 2019 to assess the positive and negative environmental and institutional impacts of TRM on Pakhimara beel in Tala Upazila (Sub-district), Satkhira District, by using the Sustainability Index of Tidal River Management (SITRM) framework. Sustainability Indices of TRM were designed to provide information on social, environmental and institutional gains. The environmental and institutional impacts were assessed by conducting household survey and Key Informant Interviews (KIIs). Agricultural impacts on crop, poultry, fisheries and vegetation, were also analyzed by comparing GIS map and agricultural production data (before and after TRM). This study investigated that Pakhimara beel was freed from waterlogging during the with-TRM event by 3,200 ha and the reduction of waterlogging increased agricultural land by 1,500 ha in 2018, compared to 2014. This study argued that only 54% of marginal farmers received crop compensation whereas 85% of crop production decreased due to TRM. For promoting sustainable TRM in the studied area, compensation should be guaranteed for all impacted parties, especially marginal farmers and the creation of employment opportunities, and settlement should be ensured.</p>

show abstract