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Mohammad Rafiqul Islam
Department of Soil Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

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Journal article
Published: 30 August 2021 in Agronomy
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Rice is a staple food for humans and a key source of soil arsenic (As) transfer to the human food chain. As a result, it is critical to develop ways for reducing As accumulation in rice. A pot experiment with seven different water management practices was done to examine the impacts of water management on rice (cv. BRRI dhan28) growth, yield, and As accumulation in rice grain. Any health risk due to As accumulation in rice grain was also determined. The soil used in the experiment was artificially contaminated with As and the source of As was sodium arsenate (Na2HAsO4 7H2O). Water management practices affect different plant growth and yield parameters including filled grains per panicle, unfilled grains per panicle, 1000-grain weight, grain yield and straw yield of rice. The number of filled grains per panicle and 1000-grain weight were found to be at their highest in the T7 (alternate wetting and drying) condition, whereas the number of unfilled grains per panicle was at its lowest in the same treatment. The T7 also demonstrated the highest grain yield (21.08 g/pot) and straw yield (22.02 g/pot), whereas the lowest values were noted in T1 (flooding throughout the growth period). The highest As concentration in rice grain (0.52 mg kg−1) was found in T1 and the lowest As concentration in grain (0.27 mg kg−1) was found in T7. Estimation of the human health risk revealed that the non-carcinogenic risks (HQ > 1) and carcinogenic risks (CR > 1.0 × 10−4) were greatly affected by different water regimes. The rice plant grown under alternate wetting and drying condition (T7) showed the lowest health risks compared to other water management practices. Thus, alternate wetting and drying conditions are a good water management strategy for increasing rice output while reducing arsenic buildup in rice grain.

ACS Style

Israt Jahan Harine; Mohammad Rafiqul Islam; Mahmud Hossain; Hasina Afroz; Rounok Jahan; Abu Bakkar Siddique; Shihab Uddin; Mohammad Anwar Hossain; Saud Alamri; Manzer H. Siddiqui; Robert J. Henry. Arsenic Accumulation in Rice Grain as Influenced by Water Management: Human Health Risk Assessment. Agronomy 2021, 11, 1741 .

AMA Style

Israt Jahan Harine, Mohammad Rafiqul Islam, Mahmud Hossain, Hasina Afroz, Rounok Jahan, Abu Bakkar Siddique, Shihab Uddin, Mohammad Anwar Hossain, Saud Alamri, Manzer H. Siddiqui, Robert J. Henry. Arsenic Accumulation in Rice Grain as Influenced by Water Management: Human Health Risk Assessment. Agronomy. 2021; 11 (9):1741.

Chicago/Turabian Style

Israt Jahan Harine; Mohammad Rafiqul Islam; Mahmud Hossain; Hasina Afroz; Rounok Jahan; Abu Bakkar Siddique; Shihab Uddin; Mohammad Anwar Hossain; Saud Alamri; Manzer H. Siddiqui; Robert J. Henry. 2021. "Arsenic Accumulation in Rice Grain as Influenced by Water Management: Human Health Risk Assessment." Agronomy 11, no. 9: 1741.

Journal article
Published: 11 August 2021 in Agronomy
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Soil acidity is a major problem when it comes to improving crop productivity and nutrient uptake. This experiment was therefore conducted at a farmer’s field—Nalitabari Upazila under AEZ 22 (northern and eastern Piedmont plains) to evaluate the effects of lime and organic manure (OM) amendment on crop productivity and nutrient uptake of the wheat–mungbean–T. Aman cropping pattern in acidic soils of northern and eastern Piedmont plains. The experiment was laid out in a randomized complete block design with three replications. There were nine treatments applied, varying doses of lime (dololime at the rate of 1 and 2 t ha−1), OM (cow dung at the rate of 5 t ha−1, poultry manure at the rate of 3 t ha−1) and a lime–OM combination to the first crop; T. Aman and its residual effects were evaluated in the succeeding second crop, wheat, and the third crop, mungbean. Results demonstrate that application of lime and organic manure to soil had significant effects on the first crop. However, the effects of lime and organic manure were more pronounced in the second and third crops. The increase in grain yield over control ranged from 0.24 to 13.44% in BINA dhan7. However, it varied from 10.14 to 54.38% in BARI Gom30 and 40 to 161.67% in BARI Mung6. The straw yields of the crops also followed a similar trend. The N, P, K, and S uptake by grain and straw of T. Aman, wheat, and mungbean were influenced significantly by the combined application of lime and organic manure. Sole or combined application of lime and manure amendment significantly improved nutrient availability and soil quality. Therefore, application of lime in combination with manure can be practiced for uplifting the crop productivity and improving soil quality in acidic Piedmont soils of northern and eastern Piedmont plains.

ACS Style

Mohammad Rafiqul Islam; Rounok Jahan; Shihab Uddin; Israt Jahan Harine; Mohammad Anamul Hoque; Sabry Hassan; Mohamed M. Hassan; Mohammad Anwar Hossain. Lime and Organic Manure Amendment Enhances Crop Productivity of Wheat–Mungbean–T. Aman Cropping Pattern in Acidic Piedmont Soils. Agronomy 2021, 11, 1595 .

AMA Style

Mohammad Rafiqul Islam, Rounok Jahan, Shihab Uddin, Israt Jahan Harine, Mohammad Anamul Hoque, Sabry Hassan, Mohamed M. Hassan, Mohammad Anwar Hossain. Lime and Organic Manure Amendment Enhances Crop Productivity of Wheat–Mungbean–T. Aman Cropping Pattern in Acidic Piedmont Soils. Agronomy. 2021; 11 (8):1595.

Chicago/Turabian Style

Mohammad Rafiqul Islam; Rounok Jahan; Shihab Uddin; Israt Jahan Harine; Mohammad Anamul Hoque; Sabry Hassan; Mohamed M. Hassan; Mohammad Anwar Hossain. 2021. "Lime and Organic Manure Amendment Enhances Crop Productivity of Wheat–Mungbean–T. Aman Cropping Pattern in Acidic Piedmont Soils." Agronomy 11, no. 8: 1595.

Journal article
Published: 02 August 2021 in Sustainability
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A good understanding of nutrient release from manure or compost after application through mineralization is important to assure meeting the nutrient demand of crops, to secure timely fertilizer application and to enhance nutrient use efficiency. The current study was done to evaluate phosphorus (P) and sulphur (S) release patterns from different types of manures viz. cow dung, cow dung slurry, tricho-compost, vermicompost, poultry manure, poultry manure slurry and mungbean residues. The mineralization study was performed under aerobic (field capacity) and anaerobic (waterlogging) conditions for 180 days at 25 ± 1 °C in the laboratory. The release of P and S showed the highest values within 75–180 and 75–150 days, respectively, and was always higher in aerobic conditions than in anaerobic conditions. The first-order kinetic cumulative model was a good fit for mineralization, which was significantly influenced by manure type, soil moisture level and incubation period. Poultry manure slurry exerted the highest P and S release under both moisture conditions. Both slurries showed higher potential mineralization, with a lower rate constant for these elements compared to that in their manure states. Hence, appropriate manures should be chosen and applied in the proper quantity to provide exact amounts of nutrients, to increase crops nutrient use efficiency and to formulate correct fertilizer recommendations.

ACS Style

Mohammad Islam; Sultana Bilkis; Tahsina Hoque; Shihab Uddin; Mohammad Jahiruddin; Mohammad Rahman; Abu Siddique; Mohammad Hossain; Theodore Danso Marfo; Subhan Danish; Rahul Datta. Mineralization of Farm Manures and Slurries under Aerobic and Anaerobic Conditions for Subsequent Release of Phosphorus and Sulphur in Soil. Sustainability 2021, 13, 8605 .

AMA Style

Mohammad Islam, Sultana Bilkis, Tahsina Hoque, Shihab Uddin, Mohammad Jahiruddin, Mohammad Rahman, Abu Siddique, Mohammad Hossain, Theodore Danso Marfo, Subhan Danish, Rahul Datta. Mineralization of Farm Manures and Slurries under Aerobic and Anaerobic Conditions for Subsequent Release of Phosphorus and Sulphur in Soil. Sustainability. 2021; 13 (15):8605.

Chicago/Turabian Style

Mohammad Islam; Sultana Bilkis; Tahsina Hoque; Shihab Uddin; Mohammad Jahiruddin; Mohammad Rahman; Abu Siddique; Mohammad Hossain; Theodore Danso Marfo; Subhan Danish; Rahul Datta. 2021. "Mineralization of Farm Manures and Slurries under Aerobic and Anaerobic Conditions for Subsequent Release of Phosphorus and Sulphur in Soil." Sustainability 13, no. 15: 8605.

Full length research article
Published: 03 January 2021 in Agricultural Research
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Organic manures are beneficial in recycling of nutrients into soil and can serve as an alternative to mineral fertilizers. A field experiment was conducted at two locations to evaluate integrated management of different organic manures with chemical fertilizers for cauliflower production. The experiment consisted of seven treatments T0: control, T1: 75% recommended fertilizer dose (RFD), T2: 100% RFD, T3: 75% RFD + Kazi compost (5 t ha−1), T4: 75% RFD + Kazi compost (3 t ha−1), T5: 75% RFD + poultry manure (3 t ha−1) and T6: 75% RFD + cow dung (5 t ha−1). Combined application of organic manures and inorganic fertilizers significantly increased growth parameters, yield attributes and yield of cauliflower and exerted significant positive effects on nutrient [nitrogen (N), phosphorus (P), potassium (K) and sulfur (S)] uptakes by curds compared to the unfertilized control. There was no considerable effect of integrated nutrient management on the occurrence of seed-borne fungi in curds and leaves. Among different treatment combinations, the performance of T3 was the best which was statistically similar with T4. Next to Kazi compost (70% poultry manure composted with 30% rice and/or saw dust), poultry manure performed well followed by cow dung in association with chemical fertilizers. In both of the locations, the performance of integrated nutrient management was better (compensating up to 25% of RFD) compared to sole application of inorganic fertilizers. Therefore, Kazi compost @ 5 t ha−1 combined with 75% RFD should be recommended for better growth, yield and nutritional improvement in cauliflower.

ACS Style

Rafiqul Islam; Tahsina Sharmin Hoque; Rafat Nur Abdullah Khan; Sumaya Farzana; Mohiuddin Ahmed; Nafise Khodabakhshloo. Influence of Different Integrated Nutrient Management Strategies on Growth, Yield and Nutritional Qualities of Cauliflower. Agricultural Research 2021, 1 -9.

AMA Style

Rafiqul Islam, Tahsina Sharmin Hoque, Rafat Nur Abdullah Khan, Sumaya Farzana, Mohiuddin Ahmed, Nafise Khodabakhshloo. Influence of Different Integrated Nutrient Management Strategies on Growth, Yield and Nutritional Qualities of Cauliflower. Agricultural Research. 2021; ():1-9.

Chicago/Turabian Style

Rafiqul Islam; Tahsina Sharmin Hoque; Rafat Nur Abdullah Khan; Sumaya Farzana; Mohiuddin Ahmed; Nafise Khodabakhshloo. 2021. "Influence of Different Integrated Nutrient Management Strategies on Growth, Yield and Nutritional Qualities of Cauliflower." Agricultural Research , no. : 1-9.