Effect of Elevated Air Temperature and Carbon Dioxide Levels on Dry Season Irrigated Rice Productivity in Bangladesh

Maniruzzaman, Md.; Biswas, Jatish Chandra; Hossain, Md. Belal; Haque, Mozammel; Naher, Umme Aminun; Choudhury, A. K.; Akhter, Sabia; Ahmed, F.; Sen, Rintu; Ishtiaque, S; Rahman, M. M.; Kalra, Naveen

doi:10.4236/ajps.2018.97114

Cited by 14 publications

(16 citation statements)

References 33 publications

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“…Biswas et al [ 68 ] also reported that rice growth duration and yield decrease with a delay in planting date. The delay in transplanting exposes the flowering stage of rice to extremely high temperature, which reduces the yield significantly [ 69 , 70 ]. So, the variation in actual yield between fields of the same variety can be attributed to some extent to variation in transplanting date, although the ANOVA test did not show a significant difference ( Table 4 ).…”

Section: Discussionmentioning

confidence: 99%

Yield, profitability, and prospects of irrigated Boro rice cultivation in the North-West region of Bangladesh

et al. 2021

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The North-West (NW) region of Bangladesh is pivotal for the country’s agricultural development, mainly in producing irrigated Boro rice. However, increasing cost of irrigation water, fertilizers, labour and other inputs, and the spatio-temporal variation in actual yield, market price and profitability of rice, have added uncertainty to the sustainability of Boro rice cultivation. In this study, we evaluated the productivity, profitability, and prospect of Boro rice production using comprehensive field data collected directly from 420 farmers’ fields over two consecutive seasons (2015–16 and 2016–17), across seven geographically distributed locations in the NW region. We also analyzed the risk and return trade of popular Boro rice cultivars using Monte-Carlo simulation. The results show that there were significant (p≤0.05) variations in rice yield between sites, irrigation pump-types, and rice varieties, with Hybrid rice and BRRI dhan29 producing highest yields (6.0–7.5 t/ha). Due to different pricing systems, the cost of irrigation water varied from site to site and from year to year, but always comprised the highest input cost (20–25% of total production). The total paid-out cost, gross benefit, and gross income of rice significantly (p≤0.05) differed between sites, type of irrigation pumps, rice varieties, transplanting dates, and two cropping years. The variations in observed yield and profitability reveal considerable scope to improve rice production systems. Market variation in the price of rice affected overall profitability significantly. Probability and risk analysis results show that Minikit and BRRI dhan29 are the most stable varieties for yield and profitability. Hybrid rice, which has the maximum attainable yield among the cultivated rice varieties, also has the risk of negative net income. Based on the analysis, we discussed ways to improve yield and profitability and the prospect of Boro rice cultivation in the region. The study provides valuable information for policy-makers to sustain irrigated rice cultivation in both the NW region and nationally.

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Section: Discussionmentioning

confidence: 99%

Yield, profitability, and prospects of irrigated Boro rice cultivation in the North-West region of Bangladesh

et al. 2021

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“…Growth duration of Boro rice decreased by 6.4 days per 1°C temperature rise. Maniruzzaman et al [24] showed similar findings of 7.45 days' growth duration reduction of BRRI dhan28 for 1°C temperature rise. Mahmud [37] also reported 7-8 days' growth duration reduction per 1°C temperature rise for BR23 cultivar.…”

Section: Temperature Effect On Growth Duration and Grain Yieldmentioning

confidence: 57%

“…Rising temperature accelerates the crop growth and development process, resulting in shortening the growth duration of irrigated rice [38]. However, growth duration contributes directly to the yield, but shorter life span due to rising temperature may affect the production in the future [24].…”

Section: Temperature Effect On Growth Duration and Grain Yieldmentioning

confidence: 99%

“…Bangladesh crop agriculture is considerably dominated by rice cultivation. Considering all rice growing season in Bangladesh, dry season rice (Boro rice) has the maximum share (53 percent) in total rice production [24]. As a major crop in dry season, Boro rice is fully dependent on irrigation, mostly from the month of January to May, because Boro rice gets a small portion of total annual rainfall in Bangladesh between January and May [7].…”

Section: Introductionmentioning

confidence: 99%

“…However, rice crop is sensitive to temperature during its critical stages and increased temperature above the optimum may reduce yield drastically [26]. Maniruzzaman et al [24] noticed yield loss and reduced growth duration of irrigated rice (Boro) in elevated air temperature over normal temperature in Bangladesh.…”

Section: Introductionmentioning

confidence: 99%

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Response of Crop Water Requirement and Yield of Irrigated Rice to Elevated Temperature in Bangladesh

Hossain

Roy

Maniruzzaman

et al. 2021

International Journal of Agronomy

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In the changing climatic condition, temperature is the most vulnerable parameter and is projecting a trend of increase in the future. Crop growth and development process depend largely on air temperature. This study aims to determine the role of increasing air temperature in yield, crop water requirement (CWR), and other agronomic parameters of irrigated rice. Ceres-rice model associated in the Decision Support System for Agrotechnology Transfer (DSSAT) was used in 15 different locations of Bangladesh. Grain yield, growth duration, and crop water requirement of widely cultivated irrigated rice (Boro rice) variety BRRI dhan28 were analysed in normal temperature and elevated air temperature by 1°C, 2°C, 3°C, and 4°C. The result revealed detrimental effect of elevated temperature on growth duration and grain yield. The estimated highest growth duration reduction of 30 days was found in Moulvibazar for 4°C temperature rise. The grain yield reduction was projected by 0–17%, 16–35%, 31–49%, and 39–61% from the normal condition if the seasonal mean temperature increased by 1°C, 2°C, 3°C, and 4°C, respectively. The country average crop water requirement was found to be 405 mm of which the highest 445 mm and the lowest 358 mm were recorded in Moulvibazar and Chandpur, respectively. The study revealed that the country average rice CWR reduced by 5%, 8%, 12%, and 17% over the normal condition for 1°C, 2°C, 3°C, and 4°C rising temperature, respectively. For 1°C temperature rise, BRRI dhan28 life span shortened by 6.4 days, grain yield reduced by 695 kg, and estimated CWR decreased by 14 mm. The projected declining CWR indicated that irrigated rice will require less irrigation water, but it will cause considerable yield loss under elevated temperature. Though elevated temperature will save huge irrigation water used in country-wide Boro rice cultivation, the crop developers need to introduce new heat-tolerant cultivar to minimize yield loss.

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Impacts of climate change and agricultural diversification on agricultural production value of Thai farm households

Prommawin,

Svavasu,

Tanpraphan

et al. 2024

Climatic Change

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This paper examines how rising temperatures impact the agricultural production value of Thai farmers, compares potential adaptation strategies like agricultural diversification, and analyzes future projections based on IPCC AR6 scenarios. We analyze nationally representative socioeconomic survey data from farm households alongside ERA5 weather data, utilizing econometric regression analysis. Our analysis reveals that higher temperatures lead to a reduction in agricultural output value, with the situation expected to worsen as global warming progresses. Furthermore, we find that households with diversified production practices, such as a variety of agricultural activities or multicropping, exhibit a greater capacity to adapt to rising temperatures. These findings substantiate the importance of the country’s policies promoting integrated farming and diversified crop-mix strategies.

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Effect of Elevated Air Temperature and Carbon Dioxide Levels on Dry Season Irrigated Rice Productivity in Bangladesh

Cited by 14 publications

References 33 publications

Yield, profitability, and prospects of irrigated Boro rice cultivation in the North-West region of Bangladesh

Yield, profitability, and prospects of irrigated Boro rice cultivation in the North-West region of Bangladesh

Response of Crop Water Requirement and Yield of Irrigated Rice to Elevated Temperature in Bangladesh

Impacts of climate change and agricultural diversification on agricultural production value of Thai farm households

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