ORCID Profile
0000-0003-0583-3952
Current Organisation
Bangladesh Rice Research Institute
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Publisher: Springer Science and Business Media LLC
Date: 03-2022
Publisher: Informa UK Limited
Date: 03-07-2017
Publisher: Bangladesh Journals Online (JOL)
Date: 09-11-2017
Abstract: On-farm experiment was carried out for four consecutive seasons: Boro (dry season) 2011-12, Transplanted Aman (T. Aman, wet season) 2012, Boro 2012- 13 and T. Aman 2013 at the farmer’s field in Londonipara, Sonagazi, Feni to develop fertilizer recommendation for rice-based cropping systems in saline and charland ecosystem in Bangladesh. The experiments were designed with eight treatments and laid out in randomized complete block design (RCBD) with three replications. The treatment combinations were: T1 = 100% NPKSZn (STB), T2 = T1 + 25% N, T3 = T1 + 25% NP, T4 = T1 + 25% NK, T5 = T1 + 25% PK, T6 = T1 + 25% NPK, T7 = 75% of T1 and T8 = Absolute control. Results indicated that application of different fertilizers significantly affected the grain yield at all of the seasons. In Boro 2011-12, the highest grain yield was found in treatment T1 (100% STB) while T3 (T1 + 25% NP) gave highest grain yield in Boro 2012-13. Statistically identical yield was observed in Boro 2011-12 with all treatments except control (T8). Highest grain yield was found with T6 (T1 + 25% NPK) treatments in both of T. Aman 2012 and 2013 seasons. Annual straw yield was found more in T6 (T1 + 25% NPK) treatment. All the treatment combinations gave significantly higher yield over the control in all seasons. However, on the basis of yield performance, economic analysis and nutrient absorption, the treatment T6 = T1 + 25% NPK (N225P30K17.5S15Zn4 for Boro and N121P15K9S10Zn3 for T. Aman) performed the best among the treatments.Bangladesh J. Agril. Res. 42(3): 521-529, September 2017
Publisher: Bangladesh Journals Online (JOL)
Date: 09-02-2014
Abstract: An experiment was conducted at the net house of the Department of Soil Science, Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh during February to June (boro season) of 2009. The objective was to find out the leaching loss of N, P, and K in the Old Brahmaputra Floodplain Soil under continuous standing water (CSW) condition. The soil was sandy loam in texture having pH 6.6, total N 0.08%, available P 7.00 mg/kg, exchangeable K 0.07 me/100g soil, and available S 7.5 mg/kg. The experiment was laid out in completely randomized design with three replications. There were six treatments, such as T0 (control), T1 (N120 P25 K60 S20 recommended dose), T2 (N180 P37 K90 S30 kg/ha i.e., 150% of the recommended dose), T3 (75% N of T1 from chemical fertilizer and 25% N from cowdung 2.5 t/ha and PKS of recommended dose from chemical fertilizer on the basis of PKS content in cowdung), T4 (as T1 but N109 kg/ha from USG) and T5 (as T1 but N applied as foliar spray). The nutrients P, K, and S were applied as basal dose in the pots while urea was applied in three equal splits except T4 and T5. One USG per pot was placed after 7 days of transplanting in T4. In T5, urea was applied as foliar spray at 10 days interval. Leachates from in idual pots were collected at 15 days intervals to determine the amount of loss of NPK. Results showed that leaching loss of NPK in the sandy loam soil under CSW condition varied widely due to different treatments over time. The total leaching loss of N, P, and K during the growing season varied from 22.23 to 91.21, 0.063 to 1.95, and 35.22 to 42.01 kg/ha, respectively. Application of chemical fertilizer at higher rates resulted in greater loss of nutrients. Integrated approach of fertilizer management could minimize such losses to a great extent. Application of N in the form of USG reduced the N loss significantly. DOI: 0.3329/bjar.v39i3.21987 Bangladesh J. Agril. Res. 39(3): 437-446, September 2014
Publisher: Bangladesh Journals Online (JOL)
Date: 13-02-2014
Abstract: A study was conducted in an arsenic (As) contaminated area of Faridpur, Bangladesh with a view to observe the effect of reduced irrigation on the As concentration of rice grain. Rice yield of BRRI dhan28 was found to be slightly higher in alternate wetting and drying (AWD) method than in continuous standing water (CSW) method of irrigation although not significant. The highest grain As conc. (0.65 mg/kg) was observed in the plots irrigated with ground water by CSW method. Significant reduction in grain As conc. was observed in AWD plots irrigated with contaminated ground water. Partial aeration of soil in AWD may have hindered the entrance of water As to rice roots. No significant reduction of soil As conc. was observed due to the application of AWD method. Reduction in grain As in AWD method implies that this technique can be devised as tool for mitigation of As in the As contaminated areas for irrigation of rice.DOI: 0.3329/jesnr.v7i2.22202 J. Environ. Sci. & Natural Resources, 7(2): 43-46 2014
Publisher: Bangladesh Journals Online (JOL)
Date: 17-12-2016
Abstract: A series of field experiments were conducted at farmers fields under Ganges Tidal Floodplain (AEZ-13) during 2012-2014 to identify suitable fertilizer management practices for maximizing rice yield. The treatments were: T1 = AEZ basis BRRI recommended fertilizer dose (BRRI dose), T2 = Rice Straw (RS)/Cowdung (CD) + IPNS (Integrated Plant Nutrition System) basis fertilizer management (RS/CD+IPNS) and T3 = Farmers Practice (FP). BRRI dhan27 (T. Aus), BRRI dhan49 and BRRI dhan54 (T. Aman) and BRRI dhan29 and BRRI dhan47 (Boro) were used as test varieties of rice. All fertilizers except urea were applied at final land preparation. In T. Aus and T. Aman seasons, urea was applied in two equal splits as FP. In Boro season, urea was added in three equal splits as FP. Urea Super Granule (USG) was applied at 12-15 DAT for T1 and T2 treatments. Treatment RS + IPNS gave 19-27% higher grain yield over FP and it saved full dose of K and S and partial dose of P fertilizer. Treatment CD + IPNS gave a 10-16% higher grain yield over FP and it saved full dose of P, K and S fertilizer in T. Aus and T. Aman seasons. On the other hand, BRRI recommended fertilizer dose gave 7-15% higher grain yield over FP.Bangladesh J. Agril. Res. 41(4): 667-673, December 2016
Publisher: Bangladesh Journals Online (JOL)
Date: 29-09-2016
Abstract: Nitrogen (N), phosphorus (P), potassium (K) and sulphur (S) strongly influence rice plant nutrition. Present experiment was conducted at the Bangladesh Rice Research Institute (BRRI) farm, Gazipur in a permanent layout in wet season of 2014. Objectives of the research were to study the effects of NPKS on grain yield, plant nutrition, requirement of NPKS to produce one ton grain and to estimate the indigenous nutrient supply of the soil. BRRI dhan49 was tested with NPKS (complete), PKS (-N), NKS (-P), NPS (-K) and NPK (-S) fertilizer packages. The NPKS were applied @ 100-7-80-3 kg ha-1. Omission of each nutrient from the complete treatments significantly reduced grain and straw yields of BRRI dhan49. The highest yield reduction was recorded because of N omission followed by K. Nutrient concentration in grain and straw as well as nutrient uptakes were significantly affected by major plant nutrients. Nutrient uptake was directly related to the biomass production. About 87% of total K uptake remained in straw and thus a good K source for rice cultivation. Nitrogen, P, K, S and Zn required to produce one ton rice were 20.88, 5.04, 18.77, 2.08 and 0.07 kg, respectively. The indigenous N, P, K and S supply capacity of this soil was 37, 13, 41 and 6 kg ha-1, respectively.Bangladesh Rice j. 2016, 20(2): 39-47
Publisher: Springer Science and Business Media LLC
Date: 28-06-2022
DOI: 10.1007/S11104-022-05560-9
Abstract: While well-designed drainage systems could improve crop growth and yield by mitigating waterlogging and salinity stresses, field evidence of the yield responses to changes in plant-water relations and ion concentrations in leaves is scarce. We investigated the changes in ion concentrations in leaves and plant-water relations of sunflower caused by drainage in waterlogged saline soil, and their relationships to growth and yield. Over two growing seasons, we tested four drainage treatments: undrained, surface drains (SD 0.1 m deep, 1.8 m apart), subsoil drains (SSD 0.5 m deep, 4.5 m apart) and SSD + SD. All plots were inundated (2–3 cm depth water salinity, EC w , 1.5–2.5 dS m –1 ) for 24 h at vegetative emergence and at the 8-leaf stage before opening drains. Relative to the most drained treatment (SSD + SD), the undrained treatment caused higher waterlogging at 0–30 cm depth, and decreased solute potential (Ψ s ) of soil at 7.5 cm to 52–374 kPa, leaf K + by 5–20%, stomatal conductance by 5–37% and leaf greenness by 12–25%, but increased leaf Na + by 25–70%, Na + /K + ratio by 38–100% and leaf water potential by 90–250 kPa throughout the cropping season these changes were closely related to reduced growth and yield. The improved yield from the combination of shallow surface and sub-surface drains was attributed to an alleviation of salinity-waterlogging stress early in the season and to increased soil water late in the season that increased Ψ s and decreased Na + /K + ratio in leaves.
Publisher: Bangladesh Journals Online (JOL)
Date: 09-06-2015
Abstract: CORRECTION: Due to a number of formatting and layout issues, the PDF of this paper was replaced on 10th October 2016. The page numbers of this article have changed from 87-93 to 91-97.Investigation during T. Aus 2012 through Boro 2013-14 at BRRI farm, Gazipur evaluated the effect of magic growth (MG) solution on rice. The experiment compared variable doses of N with or without MG along with N control in a randomized complete block design with three replications. Basal application of N with its top dress was also compared with only top dress of N (no basal). All the plots (except control) received a blanket application of phosphorus, potassium, sulfur and zinc. The application of MG spraying produced no yield advantage on rice grain yield in Aus, Aman and Boro seasons. Basal application of N with top dress produced higher yield over N top dressing only in Boro season at lower rate of N.Bangladesh Rice j. 2015, 19(2): 91-97
Publisher: InTech
Date: 03-2017
DOI: 10.5772/66046
Publisher: Bangladesh Journals Online (JOL)
Date: 12-12-2016
Abstract: Leaching loss of nutrients h ers plant growth and contributes to environmental pollution. An experiment was conducted at the net house of Soil Science Department, Bangladesh Agricultural University, Mymensingh during January to May 2009 to find out the leaching loss of N, P, K and S from sandy loam soil. Each pot received 6.67 kg dry soil with an opening at the bottom for collecting leachates. Six treatments were used: T0 = control, T1 = NPKS (120, 25, 60 and 20 kg ha-1), T2 = NPKS (180, 37, 90 and 30 kg ha-1), T3 = NPKS (90, 5, 28 and 17 kg ha-1) + cowdung (2.5 t ha-1), T4 = NPKS (109, 25, 60 and 20 kg ha-1, N as USG) and T5 = as T1 but N applied as foliar spray. Treatments were arranged in a completely randomized design with three replications. Leachates were collected at 15 days interval for determination of NPKS. The total leaching loss of N, P, K and S due to different treatments ranged from 16.00 to 90.21, 0.07 to 0.29, 9.60 to 11.20 and 3.75 to 17.81 kg ha-1, respectively. Application of chemical fertilizer at higher rates resulted in greater loss of nutrients. Integrated fertilizer management with cowdung (T3) minimized such losses. Use of USG also reduced leaching loss of N, P, K and S. The application of cowdung and USG with recommended balanced fertilizer might be useful for minimizing N, P, K and S loss from wetland rice field.Bangladesh Rice j. 2016, 20(1): 59-64
No related grants have been discovered for Dr. Mohammad Nazrul Islam.