Challenges and Adaptations for Resilient Rice Production under Changing Environments in Bangladesh

Jamal, Md Roushon; Kristiansen, Paul; Kabir, Md Jahangir; Bruyn, Lisa Lobry de

doi:10.3390/land12061217

Cited by 11 publications

(9 citation statements)

References 99 publications

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“…Sunamgonj, Kishorgonj, Sylhet, Brahmanbaria, Habiganj, Moulvibazar, and Netrokona districts belong to the haor area (a wetland ecosystem). The Haor region is a significant contributor to the overall rice production in the country, especially Boro rice; however, there exist various challenges and limitations that impede the production of rice in this region, such as inadequate transportation facilities, improper usage of fertilizers, a shortage of quality seeds, deficiency of potassium nutrients, various rice diseases and insects such as blast, bakanae, and brown plant hopper, flash floods, and cold injury [46][47][48][49][50]. Developing short-duration with high-yielding rice varieties, improving transportation facilities, and implementing farmers' training programs on nutrient and disease management are essential steps to overcome the existing problems and increase rice production in the region.…”

Section: Plos Onementioning

confidence: 99%

Spatiotemporal mapping of rice acreage and productivity growth in Bangladesh

Al Mamun,

Nihad,

Sarker

et al. 2024

PLoS ONE

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Technological advancements have long played crucial roles in rice productivity and food security in Bangladesh. Seasonal variation over time and regional differences in rice production, however, pose a threat to agricultural sustainability but remain unexplored. We performed a spatial-temporal mapping of rice cultivation area, production, and yield from 2006–2007 to 2019–2020 using secondary data for disaggregating 64 districts in Bangladesh. Growth and multivariate approaches were employed to analyze time-series data. Results showed that Mymensingh had the highest rice cultivated area and production, while Bandarban had the lowest. The 14 years highest average rice yield was found in Gopalganj and Dhaka (3.63 tons/ha), while Patuakhali (1.73 tons/ha) had the lowest. For the Aus, Aman, and Boro, the rice cultivation area in 19 districts, 11 districts, and 13 districts declined significantly. The overall rice production increased significantly in most districts. For the Aus, Aman, and Boro seasons, the rice yield in 54, 50, and 37 districts demonstrated a significant upward trend, respectively. The adoption rate of modern varieties has risen dramatically. However, there are notable variances between regions and seasons. A significant increasing trend in Aus (0.007% to 0.521%), Aman (0.004% to 0.039%), and Boro (0.013% to 0.584%) were observed in 28, 34, and 36 districts, respectively, with an increase of 1% adaptation of HYV. Predictions revealed that rice cultivation area and production of Aus, Aman, and Boro seasons will be increased in most of the regions of Bangladesh by 2030. Based on spatiotemporal cluster analysis, the five identified cluster groupings illustrated that clusters lack spatial cohesion and vary greatly seasonally. This suggests increasing rice production by expanding cultivable land, adopting high-yielding varieties, and integrating faster technological advancement in research and extension. The findings will assist scientists in developing region-specific production technologies and policymakers in designing decentral region-specific policies to ensure the future sustainability of rice production.

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Section: Plos Onementioning

confidence: 99%

Spatiotemporal mapping of rice acreage and productivity growth in Bangladesh

Al Mamun,

Nihad,

Sarker

et al. 2024

PLoS ONE

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“…The country's challenges are quite complex and stem from various climate factors, such as increasing temperatures, abnormal rainfall patterns, extreme weather, and rising salinization. Furthermore, rice production, availability, and access are increasingly disrupted by reduced agricultural land, labor shortages, crop diversification, and low profitability (Jamal et al, 2023). One of the disasters caused by climate change that often occurs is flooding.…”

Section: Rice Production Risks In World Rice Producing Countries: 196...mentioning

confidence: 99%

Rice Production Risk in Main Producing Countries 1961-2021

Dhamira,

Aminda

2023

Bul. Penelit. Sos. Ekonomi Pertan. Fakultas Pertan. Universitas

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Rice is an important food commodity to meet the high demand for food, especially in Asia. Most of the central producing countries of this commodity are located in Asia, and they play a significant role in supporting the availability of food for the people amidst the significant risks and uncertainties in carrying out rice farming, including the consequences of climate change and pests and diseases. This study aims to (1) find out the trend of rice production and production risks in the central producing countries over 61 years and (2) find out the risks of rice production in each of the central producing countries. This research was conducted using descriptive analysis using secondary data from 1961-2021, which was processed into tables and graphs. Meanwhile, the calculation of production risk is carried out using the coefficient of variation method. The results show that rice production in the central producing countries has a positive trend, where production increases from year to year. This is followed by a decrease in the risk of rice production every year. Vietnam is a country with the most significant rice production risk, while Cina and Brazil are countries with the lowest production risk. The application of programs proclaimed by the government, which are also adapted to the characteristics of farmers and actual conditions in the field, is expectee to minimize production risks so that optimal production can be achieved.

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“…Rice ( Oryza sativa L.) is one of the most important food crops worldwide. In recent years, soil salinization caused by natural changes and improper human activities has seriously threatened the growth and development of rice and even led to crop death [ 1 , 2 ]. More than 20% of the world’s arable land is affected by soil salinization, with irrigated areas accounting for half, which is expected to increase in the future [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

5-ALA, DTA-6, and Nitrogen Mitigate NaCl Stress by Promoting Photosynthesis and Carbon Metabolism in Rice Seedlings

Wang,

Tan,

et al. 2024

Metabolites

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A large number of dead seedlings can occur in saline soils, which seriously affects the large-scale cultivation of rice. This study investigated the effects of plant growth regulators (PGRs) and nitrogen application on seedling growth and salt tolerance (Oryza sativa L.), which is of great significance for agricultural production practices. A conventional rice variety, “Huang Huazhan”, was selected for this study. Non-salt stress treatments included 0% NaCl (CK treatment), CK + 0.05 g N/pot (N treatment), CK + 40 mg·L−1 5-aminolevulinic acid (5-ALA) (A treatment), and CK + 30 mg·L−1 diethylaminoethyl acetate (DTA-6) (D treatment). Salt stress treatments included 0.3% NaCl (S treatment), N + 0.3% NaCl (NS treatment), A + 0.3% NaCl (AS treatment), and D + 0.3% NaCl (DS treatment). When 3 leaves and 1 heart emerged from the soil, plants were sprayed with DTA-6 and 5-ALA, followed by the application of 0.3% NaCl (w/w) to the soil after 24 h. Seedling morphology and photosynthetic indices, as well as carbohydrate metabolism and key enzyme activities, were determined for each treatment. Our results showed that N, A, and D treatments promoted seedling growth, photosynthesis, carbohydrate levels, and the activities of key enzymes involved in carbon metabolism when compared to the CK treatment. The A treatment had the most significant effect, with increases in aboveground dry weight and net photosynthetic rates (Pn) ranging from 17.74% to 41.02% and 3.61% to 32.60%, respectively. Stomatal limiting values (Ls) significantly decreased from 19.17% to 43.02%. Salt stress significantly inhibited seedling growth. NS, AS, and DS treatments alleviated the morphological and physiological damage of salt stress on seedlings when compared to the S treatment. The AS treatment was the most effective in improving seedling morphology, promoting photosynthesis, increasing carbohydrate levels, and key enzyme activities. After AS treatment, increases in aboveground dry weight, net photosynthetic rate, soluble sugar content, total sucrose synthase, and amylase activities were 17.50% to 50.79%, 11.39% to 98.10%, 20.20% to 80.85%, 21.21% to 33.53%, and 22.17% to 34.19%, respectively, when compared to the S treatment. In summary, foliar sprays of 5-ALA, DTA-6, and additional nitrogen fertilizer enhanced rice seedling growth, increased photosynthesis, lowered Ls values, and improved seedling salt tolerance. Spraying two regulators, 5-ALA and DTA-6, quantitatively increased the effect of nitrogen fertilizer, with comparable effects on NaCl stress regulation. This study provides the basis for efficient agricultural production.

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Challenges and Adaptations for Resilient Rice Production under Changing Environments in Bangladesh

Cited by 11 publications

References 99 publications

Spatiotemporal mapping of rice acreage and productivity growth in Bangladesh

Spatiotemporal mapping of rice acreage and productivity growth in Bangladesh

Rice Production Risk in Main Producing Countries 1961-2021

5-ALA, DTA-6, and Nitrogen Mitigate NaCl Stress by Promoting Photosynthesis and Carbon Metabolism in Rice Seedlings

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