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A research study was conducted assessing the influence and relationships of soil properties in irrigated rice fields of Bangladesh using 100 field plots from five land blocks and four land types of Boro (winter rice) – Fallow – T. Aman (summer rice) cropping system. Out of four land types medium highlands covered 53% of the study area whereas highl...
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... of Konabari, Naodhar, Darila, Kakchar and Rampur land blocks were 328, 133, 206, 689 and 1861 ha, respectively. There were four land types named highland (HL), medium highland (MHL), medium lowland (MLL) and lowland (LL) which covered 26%, 53%, 8% and 13% of the study area respectively ( Figure 2). ...
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p>Carbon (C) inputs and tillage intensity impinge on C degradation and thus CO<sub>2</sub> emission and soil properties get influenced. Information on CO<sub>2</sub> emission and soil properties under different tillage practices and straw application in rice based cropping system in Bangladesh is lacking. The effects of rice straw and tillage opera...
An experiment was conducted to investigate the factors responsible for the partitioning of energy balance components over BRRI dhan 49 (Aman season) and BRRI dhan 28 (Boro season) rice crops at the paddy field of Bangladesh Agricultural University Farmland, Mymensingh during August 2010 to July 2011. The whole measurement period was divided into fo...
Citations
... Good productive soil builds the foundation for any successful cropland (Zaiad, 2001). A significant decline in soil productive capacity has been documented worldwide due to the inorganic contamination (Haque, 2007). ...
This study was carried out to explore the seasonal variations in physico-chemical and microbiological characteristics of soil samples collected from different types of agricultural fields in confluence point of Vellar and Manimuthar river basin in Peruvarappur village, Cuddalore district, Tamilnadu. The fields were selected based on the fertilization type (Organic Fertilization [OF], Chemical Fertilization [CF]) over the past three years. Results showed that seasonally the pH is not varied in both fields, however; the seasonal average is slightly higher in CF field. The total nitrogen concentration showed a higher average in OF field (3.83±.73 g kg-1) than CF field (2.70±0.51 g kg-1). However, available K and P showed the average concentration is higher in CF field (64.35±4.04 and 77.15±2.07) than OF field (44.06±1.40 g kg-1 and 64.0±9.7 g kg-1). The higher seasonal average of Total Nitrogen (TC) and ammonium was found in OF field (29.95±2.48 and 3.63±0.29) than CF field (28.8±3.06 and 1.56±.38) Moreover, the seasonal average of Nitrate concentration was higher in CF field (24.61±2.28) than OF field (13.96±1.04). All the physico-chemical properties of both fields soil are increased every first monsoon season. Zinc and Manganese are the major metal components found in OF field (189.52±8.31 µg g-1) and CF field (197.17±11.67 µg g-1) respectively. Chemical fertilization increases the fungal population, however; it reduced the bacterial and actinomycetes population in CF field. The Non-linear incasement of analyzed soil parameters and the microbial population were observed in this study. The factors that control soil fertility are good in OF field than the CF field.
... Iwegbue et al. [26] who worked on municipal waste dumps in Nigeria, reported strong positive loadings of Cr, Cu and Co on factor-1 and negative loadings of Fe on factor-1. Haque et al. [27] in their findings on soil properties of Bangladesh reported positive loading of K on factor-3. Ownley et al. [28] in their studies on Pacific Northwest reported positive loadings of Zn on factor-1. ...
