Uniting Life, Social, and Natural Sciences in Ecological Exploration
Bridging Borders: International Research, Local Impact
Beyond Theory: Practical Insights and Technical Advancements
Synthesizing Knowledge, Pioneering Tomorrow's Solutions
Strengthening Research Integrity, Fostering Collaboration
ABSTRACT: Mosquito-borne diseases pose significant health challenges globally, particularly in regions such as Bangladesh where chikungunya and dengue have been prevalent in recent years. These diseases are transmitted through the bites of infected mosquitoes, which breed in stagnant water. Common mosquito-borne diseases include chikungunya, dengue, malaria, and Zika virus, among others. Efforts to control mosquito populations have included the destruction of breeding sites, the application of larvicides, and more recently, the use of Bacillus thuringiensis israelensis (BTI) in Dhaka. While these measures have helped manage chikungunya, dengue remains a persistent issue despite ongoing control efforts. This paper explores innovative mosquito control strategies, focusing on asphyxiation techniques to reduce mosquito populations and the use of homemade repellents for personal protection against mosquito bites. The effectiveness of these methods in the context of dengue management is critically examined.
Keywords: Aedes spp., Bangladesh, dengue, management
Post Time: 3 weeks ago
ABSTRACT: Bangladesh, spanning 148,460 km² with a 580 km coastline, confronts significant climate change challenges, experiencing rising temperatures and declining rainfall. With a population exceeding 170 million, its density could surpass 1200 people per km² by 2025, despite ranking 94th in land area and 8th in global population. Bangladesh ranks 3rd in rice and vegetable production and 10th in tropical fruits production: The country’s pesticide use ranks 29th globally, with substantial variations per hectare compared to leading countries like China and Japan. Pesticides play a vital role in Bangladeshi agriculture to combat pests and diseases. Fluctuations in registered formulations from 2010 to 2022 indicate regulatory adjustments and market shifts, with biopesticide registrations witnessing growth. The pesticide industry has flourished, with the number of companies expected to reach 802 by 2024, reflecting increasing demand and regulatory approvals. However, pesticide consumption has shown fluctuation, with increases in both usage and market value. The heavy treatment of vegetables like brinjal highlights the necessity for targeted pest management strategies. Despite the benefits of pesticides in enhancing yields, their misuse poses significant health and environmental risks, necessitating sustainable pest management practices to ensure long-term agricultural and environmental sustainability in Bangladesh.
Keywords: Pesticides, industry, use, abuse, environment, health
Post Time: 3 weeks ago
ABSTRACT: Drought is one of the most serious environmental stresses that hinders mungbean (Vigna radiata L.) production seriously. Improvement of soil nutrition is one of the effective measures to enhance drought tolerance of upland crops like mungbean. This study was conducted to evaluate the effect of higher levels of macro nutrients on growth and yield performance of mungbean. Recommended dose, and two, three and four folds of the recommended dose of major fertilizers (N-P-K-S) were applied on two popular mungbean varieties namely, Binamoog-5 and BU mug4 under water stress. The effect of the higher levels of fertilizer on stressed plants was evaluated by examining different morphological parameters of growth such as plant height, parameters of growth analyses, yield attributes and grain yield. Water stress in general had a negative effect on plant growth and development. However, the enhanced levels of nutritions lessened the water stress effect. Increased plant height, leaf area, CGR, RGR, NAR, and grain yield and yield attributes were measured in plants that received elevated nutrients. In general Binamoog-5 showed higher water stress tolerance than BU mug4 in relation to the production of grain yield and yield attrbutes. Under water stress the highest number of pods plant-1 was recorded in T4 where Binamoog-5 produced 15.33 plant-1 and BU mug4 had 13.33 plant-1. The highest 100-seed weight was recorded in Binamoog-5 (4.65 g) and BU mug4 had 4.29 g with the three-fold increased doses of N-P-K-S fertilizer (T4 ). The highest grain yield plant-1 was also recorded in T4 where Binamoog-5 produced 4.95 g plant-1 and BUmug4 produced 3.95 g plant-1. It was concluded that higher levels of NPKS enhanced productivity of mungbean, than the recommended.
Keywords: Greengram, nutrients, seed yield
Post Time: 3 weeks ago
Abstract: To investigate the effects of intercropping of maize with sugarcane on cane development, outturn, and overall economic return, field experiments were carried out during the cropping year 2021–22 in two different locations: Bangladesh Sugarcrop Research Institute (BSRI), Ishwardi, Pabna and the Regional Sugarcrop Research Station (RSRS), Thakurgaon, Bangladesh. There were nine treatments namely T1 : Single row sugarcane only (SS), T2 : SS+ Maize (During sett placement), T3 : SS+ Maize (7 days after sett placement), T4 : SS+ Maize (14 days after sett placement), T5 : SS+ Maize (21 days after sett placement), T6 : SS+ Maize (28 days after sett placement), T7 : SS+ Maize (35 days after sett placement), T8 : SS+ Maize (42 days after sett placement), T9 : Maize (M) only. Sugarcane variety “Isd 39” and maize variety “Super 92” were used in this experiment as experimental materials. Results indicated that T7 treatment was superior in terms of germination (56.56% at BSRI and 57.33% at Thakurgaon). The treatments T1 (174.33×103 ha-1 and 184.00×103 ha-1) and T7 (162.67×103 ha-1 and 168.00×103 ha-1) consistently exhibited superior tiller production and millable cane yield at both the locations. However, T1 generally resulted in higher cane yield, while T7 demonstrated higher SEY (108.25 t ha-1 at BSRI and 114.79 t ha-1 at Thakurgaon), LER (1.56 at BSRI and 1.52 at Thakurgaon), ATER (1.20 at BSRI and 1.16 at Thakurgaon), gross monetary value (487133 BDT ha-1 at BSRI and 516533 BDTha-1at Thakurgaon), and monetary advantage index (175178 at BSRI and 177542 at Thakurgaon) compared to other treatments. Treatment T2 also showed competitive SEY (105.52 t ha-1 at BSRI and 108.69 t ha-1 at Thakurgaon), LER (1.64 at BSRI and 1.54 at Thakurgaon), ATER (1.13 at BSRI and 1.07 at Thakurgaon), gross monetary value (474867 BDT ha-1at BSRI and 489100 BDT ha-1at Thakurgaon), and monetary advantage index (184942 at BSRI and 173134 at Thakurgaon), indicating its effectiveness in enhancing sugarcane production. Therefore, it maize planted 35 days after sugarcane sett placement (T7 ) or during sugarcane sett placement (T2 ), profitable intercropping system.
Keywords: Multiple cropping, maize, sugarcane, yield, monetary benefit
Post Time: 3 weeks ago
ABSTRACT: A field experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur to assess growth and yield of newly released aromatic rice variety (cv. BUdhan 2) under different levels of plant spacing and applied fertilizer. The variety was grown incorporating three fertilizer levels viz. recommended (57- 10-8-7-0.9 kg N-P-K-S-Zn ha-1), 50% higher (114-20-16-14-1.8 kg N-P-K-S-Zn ha-1) and 50% lower (28.5-5-4- 3.5-0.45 kg N-P-K-S-Zn ha-1) than the recommended dose with three plant spacings (20 × 25 cm, 20 × 20 cm and 20 × 15 cm) representing wider, standard and closer plant densities. Results revealed that growth parameters like plant height, leaf area index, dry matter production and crop growth rate were better under the condition of higher fertilizer level with closer plant spacing. Consequently, the highest grain yield (5.18 t ha-1) of the variety was achieved under higher dose of fertilizer at closer plant spacing.
Keywords: Aromatic rice, plant spacing, fertilizer level, crop growth
Post Time: 3 weeks ago
ABSTRACT: Rice weevil, Sitophilus oryzae Lin. (Coleoptera: Curculionidae) is economically significant and known as a ubiquitous pest in Bangladesh as well as throughout the world. In this study, the infestation rate by this pest was assessed throughout the year on twelve common indigenous cereal grains and pulses, namely boiled and nonboiled rice, wheat, barley, maize, felon, pea, grass pea, lentil, chickpea, black gram and mung bean. There were significant differences in the infestation rate among the months and in the susceptibility among grains over the year. The highest percentage of weight loss over the year was found in chickpea (84.56%) and the lowest percentage of weight loss was found in black gram (7.09%). The chronological position of the experimental grains according to their percentages of weight loss was chickpea > wheat > barley > maize > nonboiled rice > pea > boiled rice > grass pea > lentil ≥ mung bean > felon > black gram. The highest infestation occurs at the temperature range of 32-35o C and during the month of April-June.
Keywords: Sitophilus oryzae, infestation, stored grains, cereals, pulses
Post Time: 3 weeks ago
ABSTRACT: Oral and dental health is concerned with a person’s teeth, gums and mouth. The goal is to prevent complications such as tooth decay (cavities) and gum disease, and to maintain the overall health of mouth. The main objective of this study was to assess knowledge, practice, thoughts and activity of rural people regarding oral and dental health, oral hygiene consciousness, and dentist assistance. This research work was a cross sectional type of descriptive study. Total 200 respondents participated from Bagura Sadar upazilla of Bagura district. A structured questionnaire was used for a face to face interview and the collected data ware analyzed by using SPSS 27.0.1.03.7. It was found that, 52.5% rural people are going to pharmacy when they feel any problem in their orofacial region, 59% of people do not know about dentist, 70% people do not have any idea of dentist degree BDS. But 61% are conscious about oral hygiene. 47% people use toothpaste and toothbrush to clean their teeth. 57 % are cleaning their teeth one time in a day. Majority of rural people have wrong idea towards attitude, activity, practice, and knowledge regarding oral and dental health. Therefore, it is urgent to promote oral and dental health education in the country.
Keywords: Oral health, dental health, pharmacy, orofacial region, dentist
Post Time: 3 weeks ago
ABSTRACT: Lying at the tidally active region of the Bengal Delta, the Sundarbans act as a terrestrial carbon sink and play a crucial role in climate change mitigation. However, this forest is underrepresented in term of soil organic carbon research. The purpose of this study was to investigate the Soil Organic Carbon dynamics across various geomorphic units within a small area of mangrove forest ecosystem of Dublar char of Sundarbans. Salinity and pH trends were also examined across geomorphic units to understand their interplay with soil organic carbon dynamics. Soil samples from 25 locations across various geomorphic units were collected and analyzed to determine soil organic carbon, salinity and pH levels. The Walkley-Black wet oxidation method was employed to determine the organic carbon content. Results indicate varying degree of organic carbon concentration across geomorphic units with Highland areas having high level of soil organic carbon concentrations with average concentration level of 2.05%, followed by Creeks with 1.55%. Salinity levels also varied across different geomorphic units with values ranging from 4.8 ppt to 12.7 ppt, with creek area having high level of salinity due to its close proximity to seawater. Fringe forest areas had the highest pH levels with average value of 7.4 and the lowest average pH value (6.86) was observed in Beach areas of the study area. The study holds immense significance in understanding the organic carbon dynamics of mangrove ecosystem in the Sundarbans, providing essential insights for long term climateresilient land management and biodiversity conservation efforts.
Keyword: Geomorphology, Sundarbans, pH, salinity, soil organic carbon
Post Time: 3 weeks ago
ABSTRACT: COVID-19 pandemic affected human lives as well as economy worldwide. Mango production has been significantly affected by the COVID-19 pandemic, which has created difficulties for growers, markets, supply chains, and consumer behavior globally. The study was carried out to assess the impact of COVID-19 pandemic on cultivation of BARI Aam-3 by the growers of Porsha upazila under Naogaon district and Nachole upazila under Chapainawabganj district. Data were collected from 111 BARI Aam-3 growers. Descriptive statistics were used for data analyses. Majority of the respondents were middle aged, literate, belonged small household, had medium to large farm, medium annual income, had moderate knowledge on mango cultivation and some kind of off farm activities. Highest percentage of them had high training experience, medium extension contact, medium organizational membership, medium cosmopoliteness, low to medium innovativeness, medium farming experience, access to credit and available irrigation water. More than one-fourths (27.0%) of the respondents were very highly affected in getting market price. The highest portion of the respondents suggested about incentive, subsidies, inputs, laborer and marketing support and credit at reduced rate of interest.
Keywords: COVID-19, pandemic, market price, labor, BARI Aam-3
Post Time: 3 weeks ago
ABSTRACT: Corn is a vital cereal crop in Bangladesh, significantly contributing to food security and economy. However, the fall armyworm Spodoptera frugiperda, poses a severe threat to corn cultivation. This study evaluates the toxicity of four insecticides and their effect on the nutritional indices of fall armyworm. Experiment was conducted from November 2022 to April 2023 with sweet corn variety BU Misty Vutta 1 at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh. In this research four insecticides: Winmax 40 WDG, Ripcord 10 EC, Marshal 20 EC, and Shobicron 425 EC, were tested on fall armyworm larvae at multiple concentrations. The mortality of fall armyworm larvae was observed at 24, 48, 72, and 96 hours after treatment. Results indicated significant differences in larval mortality across treatments, with Shobicron 425 EC showing the highest mortality rate (100% at 72 hours after treatment), while Winmax 40 WDG showed the lowest. The median lethal concentration (LC50) and lethal concentration for 95% mortality (LC95) values supported the findings, with Shobicron 425 EC demonstrating superior efficacy. Additionally, Shobicron 425 EC resulted in the lowest food consumption (0.1), consumption index (0.2), Approximate digestibility (19.5%), Efficiency of conversion of ingested food (3.9%) and Efficiency of conversion of digested food (1.1%). The study concludes that Shobicron 425 EC is the most effective insecticide for controlling fall armyworm in sweet corn, suggesting its potential for integrated pest management strategies.
Keywords: Food consumption, digestibility, Zea mays, Spodoptera frugiperda, mortality
Post Time: 3 weeks ago
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