The IoT (Internet of Things) is now a trendy technology with its numerous apps in multiple areas. It includes a heterogeneous amount of Internet and mutually linked devices. Since the IoT network is characterized by tiny assets that produce less energy and are more flexible, this number of machines is difficult to monitor. SDN (Software Defined Network) is a new network model that facilitates the creation and introduction of fresh networking abstractions, simplifies the management of network and facilitates network development. In this paper, by leveraging the fundamental characteristics represented by Software Defined Networks (SDN), we present an ontological security architecture for IoT networks. Our security architecture restricts access to independently verified IoT devices via the network. To secure the flows in the IoT network infrastructure, we introduced an extra layer and provide a lightweight protocol to authenticate IoT systems. Such an advanced strategy to protection containing IoT device authentication and allowing approved flows can assist secure IoT networks against malicious IoT devices and threats.

Natural gas is one of the primary energy sources of Bangladesh. Demand of natural gas in Bangladesh increasing day by day in various sectors. But, due to limited resources, energy crisis increasing gradually. This research work deigned to find out the natural gas crisis via forecasting gas demand and production. At the end, it also analyzed the future of CNG and LPG based vehicles in Bangladesh as an alternative of natural gas dependency. The prediction of gas demand and production has been conducted based on the data from Petrobangla. And the future of CNG and LPG based vehicles were analyzed based on different CNG & LPG conversion company data. Demand forecasting presented three scenarios; “scenario A, scenario B and scenario C” and production forecasting has been displayed as three cases; “case A, case B, case C”. The Comparison of CNG and LPG has been made based on different parameters like conversion cost, calorific fuel value, fuel cost, mileage, risk of explosion of fuel cylinder, carbon emission etc. The outcomes of gas demand forecasting represented that gas demand is growing in every scenario. The results of production forecasting denoted as existing gas fields production is decreasing gradually. It also indicated, if new reserves would be discovered, then the production will be maximized. On the other hand, CNG conversion rate will be declined due to the shortage of natural gas. In conclusion, the investigation of different parameter of CNG & LPG confirmed, LPG is suitable for cope up with the future crisis. Hence LPG based vehicles need to take place of CNG based vehicles.

Field experiment was carried out at Uyo to evaluate some morphological traits and yield variability of some elite cassava varieties with aim of making innovative recommendation to farmers. The experiment laid out in a complete block design, replicated three times. The treatments were six cassava varieties; TMS 30572, TME 419, TMS 98/0505, TMS 98/0581, TMS 01/1412 and local variety known as Obubit Okpo. Data collected from growth and yield was subjected to analysis of variances. Significant means were compares using least significant difference (LSD) at 5% probability level. Among the cassava varieties; TMS 98/0581 had superiority over in four characters namely; leaf area, storage root length, storage root circumference and yield. Also TMS 01/1412 was superior in terms of number of leaves per plant and number of storage roots per plant while TME 419 was superior in terms of plant height. Since TMS 98/0581 had four major characters, it could be disseminated to farmers in Uyo, Akwa Ibom State, while the other varieties TMS 01/1412, and TME 419 which were superior in two and one characters respectively could be incorporated into breeding programme with TMS 98/0581 to produce hybrid varieties with higher yield for the study area.

The experiment was conducted over 120 days from March to June 2019 in Bagerhat sadar upazila, Bagerhat. The study was categorized into four treatments indicated as T1 (ACI feed), T2 (Quality feed), T3 (Mega feed) and T4 (control) with three replicates. The experimental ponds were stocked with shrimp PL at same density of 4 nos./m2. Ponds were treated with agricultural lime based on soil and water pH and fertilized with urea and Triple Super Phosphate depending on water transparency and depth. Different water quality parameters were determined at ten-day intervals. Parameters of water were within acceptable ranges of shrimp culture. Higher growth (30.36 g) of shrimp was achieved in T2 compared to T1 (28.53 g), T3 (27.43 g) and T4 (22.85 g). Growth and survival rate of shrimp were comparatively lower in T4 at the same stocking density. Significantly (p<0.05) higher production of shrimp was obtained in T2 (971.52 kg/ha) than those of T1 (855.90 kg/ha), T3 (757.07 kg/ha) and T4 (566.68 kg/ha). Highest net profit (US$ 2570.2/ha) of shrimp farming was found in T2 than that of T1 (US$ 2105.7), T3 (US$ 1786.6) and T4 (US$ 1298.1). Results of the study indicate that among different commercial feeds Quality feed (T2) is better than other feeds in respect of survival rate, growth, production and net profit. So, farmers may be encouraged to use Quality feed for getting higher production and significant return in a short period of time.

This study was conducted to enhance the growth and yield performance of cacao trees under mature rubber for one (1) fruiting season through the integration of urea and vermicompost. The experimental design was set in factorial Randomized Complete Block Design with a total of 15 treatment combinations. The treatments were three rates of urea (0, 100 and 200 g/tree) and five rates of vermicompost (0, 1.5, 3.0, 4.5 and 6.0 kg/tree). The trunk circumference, leaf length and width, number of pods developed and harvested, pod and bean character, soil OM%, leaf Nitrogen content and prevalence of pest and diseases were evaluated. The application of 200g urea per tree produced significant increase from 4.86 to 8.44 kg (73.66% increase) in weight of harvested pods and from 23.32 to 26.40 g/pod (13.21% increase) dry bean weight and significant decrease in the pod index from 43.39 to 38.45 (11.36% decrease). Moreover, the heaviest and thickest pod husk was obtained from plants applied with 100 grams urea + 1.5 kg vermicompost. The highest mean number of beans/pod was obtained from trees applied with 100 – 200 g urea + 1.5 – 3.0 kg vermicompost. The soil organic matter content (%) and leaf N was slightly increased by application of fertilizer treatments. Pod borer infestation and nematode population were significantly affected by application of urea and vermicompost. Application of 100 g urea/tree or 3.5 bags/ha gave the highest return of investment and was the most profitable source of nutrient.

Frozen food is one of Bangladesh’s most valuable export items, comprising more than 80% of shrimp. The most cultivated area of shrimp is situated in the southern region of Bangladesh. This research was carried out to identify the core problem in the shrimp farming areas in order to support the related farmers in seeking a solution through the most common technology used by them. The study was conducted in Shyamnagar, Satkhira district with a total of 40 female respondents involved. This research showed that shrimp farming is pressurized by a lack of proper information on disease identification and its management. Mobile apps are considered the most common information providers among that community. The research defined the common problems and necessity through the system requirement specification (SRS) to provide needed details for the farmers that focused on mobile-app development eventually. It was found that disease (82.86%) and water quality (17.14%) are the most common issues while among the diseases White Spot Syndrome Virus and Yellow Head Virus Disease followed by Black Gill disease were the most alarming to handle without pre-management knowledge. The research also suggests developing voice-based mobile apps for shrimp farmers in the local language.

The prime energy scarcity is nowadays a mostly the debated issue in Bangladesh in the awaken of spreading energy and fuel crisis. Pipeline natural gas support only 6 % domestic consumption of total population by 16 % of total produced gas which is declined mode. The claim of natural gas is on the continuous increase to meet domestic needs in the city, suburban areas together with industrial, commercial, power generation and diverse usage against the scarcity of gas. The demand for natural gas is on the continuous increase to meet domestic needs in the urban, suburban areas alongside industrial, commercial, power generation and diverse usage against the scarcity of gas. In this situation, LPG becomes a popular alternative energy source to reduce the natural gas crisis along with providing clean fuel in rustic areas. LPG is using by about 81% in its total amount for domestic purposes. At present in 2018 LPG demand in Bangladesh is approximate 750,000 MT and in future 2025 it would be 250, 0000 MT with growth rate 25%, 17 %, 14%, 15 %, 8%, 20% and 17% respectively. Now a day 12 KG LPG cylinders price is BDT 1150-1200 because of the variety of market barriers, government VAT and higher transaction costs which is not affordable for the middle as well as a low-income family though Bangladesh government fixed the price every month. LPG could assume an increasingly significant job in giving cooking energy to low-middle pay family units in Bangladesh if an appropriate advertising structure and circulation plan are masterminded. The aim of this project is to find out the challenges of LPG supply, distribution, and pricing in the growing Bangladesh market and to make a well planned and details road map so that LPG companies of Bangladesh can serve 70% of the domestic cooking fuel through LPG by 2025.

Nigeria being a tropical nation with high temperature and some Nigerian bakeries use mud oven which expose workers to direct contact with heat increasing their risk of heat stress. This research work tends to evaluate heat stress on bakery workers in Makurdi, Benue State. Forty questionnaires were validly filled and handed in from the workers at the various bakeries. Data such as age, duration of exposure as well as heat stress estimation and satisfaction level were filled in and data were analysis using statistics and results shows that heat stress reduces efficiency and productivity in workers poses health risk in workers such as heat cramps, heat rashes and in severe cases even heat stroke which may threaten the life of these workers. The results from measurements in this work has shown that bakery workers in Makurdi metropolis are highly exposed to heat stress and are likely to experience one disorder or the other with possible death consequences. It was also found that heat stress is often an overlooked problem as most workers lacked proper knowledge of control measures and employers have made little or no effort to prevent heat stress disorders.

Payment for Ecosystem Service (PES) scheme for certain ecosystem services is being used as a mechanism to provide incentive to suppliers of the services by the beneficiaries. In Nepal, PES like schemes is in practice since a long time, though the discussions on formal PES schemes have recently been started. This study has been carried out at Begnas Lake Watershed (BWS), a Ramsar site, at Pokhara-Lekhnath Metropolitan of Nepal. It aims to understand the perception of local residents towards the implementation of PES scheme in BWS. Furthermore, it also identifies key actors for PES implementation at BWS, their role in PES design and implementation as well as potential payment mechanism for the ecosystem services within the PES scheme at BWS. Finally, institutional structure for PES design and implementation is also presented. The study finds positive perception of local people towards initiating payment mechanism for the use of ecosystem services to ensure environmental conservation and sustainable management of the resources. Both upstream and downstream population favors mix of public/private PES scheme while upstream population favors cash-payment type scheme and downstream population favors the capacity building of upstream communities in conservation efforts. It is also noted that upstream people favor input-based mode of payment and downstream people are inclined towards output-based payments. The study found some ‘PES-like’ practices operational in the watershed. The study recommends the formation of ‘Begnas Watershed PES Advisory and Coordination Committee’ with due participation of identified stakeholders to initiate and institutionalize formal PES mechanism at BWS.

Environment mainstreaming across the humanitarian operations and long-term development programs is imperative to the new way of working agreed in the World Humanitarian Summit (2016). Mainstreaming environment in Humanitarian-Development nexus is crucial to minimize the environmental impacts of humanitarian projects and to build long term resilience against environmental and climatic risks and vulnerabilities of communities. This study explores the current environmental mainstreaming strategies of humanitarian and development organizations at the institutional and operational level based on specific attributes. This study conducts the case study of leading humanitarian and development organizations, namely, WFP, IFRC, UNDP, and USAID, based on the conceptual framework on mainstreaming strategies derived from various literature. Multiple case study approach was employed based on information collected through various secondary sources and personal consultation with the organizations. The finding of this study signifies the presence of varying environmental mainstreaming practices within the studied organizations, and comparative analysis among them is also presented. Finally, this study suggests that joint contextual environmental (and climate) analysis by humanitarian and development actors and inclusion of environmental consideration in collaborative multi-year programming to minimize environmental damage in protracted crises.

Wide spread use of information system in the delivery of managed healthcare system and the challenges of identifying and disseminating relevant healthcare information, complex and diverse data and knowledge forms and tasks coupled with the prevalence of legacy systems require automated approaches for effective and efficient utilization of massive amount of data to support in strategic planning and decision-making and assist the strategic management mechanisms. Despite the fact that data mining is progressively used in information systems as a technology to support analytical decision making, it is however still barely used in hospital information system to support analytical decision making process. Hence, this paper presents the usefulness of data mining technology in Hospital Information Management System (HIMS). Data mining technology offered capabilities to increase the productivity of medical personnel, analyze care outcomes, lower healthcare costs, improve healthcare quality by using fast and better clinical decision making and generally assist the strategic management mechanisms.

Nitrogen (N) is a major lacking nutrient element for the growth and yield of cereal crops Calabar, it is necessary to determine the response different sources and rates of N in four varieties of upland rice. Treatments comprised factorial combinations of the four rice varieties (NERICA 1, NERICA 2, FARO 45, FARO 48), three straight inorganic N sources (urea, Calcium ammonium nitrate, ammonium sulphate) and four levels of N (0, 30, 60, 90 kg N ha-1) laid in randomized complete block design. The N was split applied twice; one-third at the beginning of tillering and the remainder at panicle initiation. The results showed that the source of fertilizer N did not affect significantly the growth and yield of the rice crop (p=0.05). Considering that soils in Calabar are acid sands it will not be advisable to consistently apply such acidifying fertilizers as ammonium sulphate or urea except with soil liming which will undoubtedly increase the cost of production and probably make it unprofitable to cultivate rice in the area. The fertilized crop grew taller and produced more biomass compared with the control. It also produced significantly more tillers hill-1, panicles m-2, grains panicle-1, weight of 1,000 grains and grain yield. However, whereas NERICA 1, NERICA 2 and FARO 45 were more responsive to lower N levels, the grain yield of FARO 48 was significantly higher when the crop received 90 kg N ha-1 compared with other varieties, probably because of its longer growth duration in the field. The responsiveness of these varieties to low N application was the result of their higher grain yield resulting from enhanced N use efficiency. Genotypes that were most responsive to low N input levels were early maturing with high N-use efficiencies. On the basis of grain yield, it is recommended that for high yield in the humid region of Cross River State, N should be applied at the rate of 60 kg ha-1 for early- and 90 kg ha-1 or above for the medium-maturing upland rice varieties.

Field experiment was conducted at National Cereals Research Institute (NCRI) Uyo-Out station in 2015 and 2016 cropping seasons. The aim was to evaluate the yields of seven maize varieties in humid rainforest of Uyo, Southeastern Nigeria in view of recommending high yield varieties. The experiment was laid out in a randomized complete block design, replicated three times. The treatments were seven maize varieties viz- : Uwep (local). FARZ 32, Oba super 2, Oba 98 and suwan-I-SR, Quality protein maize (QPM) and extra-early. Growth and yield data were subjected to analysis of variance. Significant mean were compared using least significant difference at p<0.05. The result showed significant difference(p<0.05) plant height. FAR 32 was the tallest at 9WAP (159.37 and 163.33 cm in 2015 and 2016 cropping seasons, respectively) The shortest variety, 121.12 and 122.61 cm, respectively at 9WAP was recorded in QPM. The weight of grains varied significantly different. FARZ 32 had the heaviest 100 grain weight, 42.60 g and 41.30 g in 2015 and 2016, respectively. The least weight of 100 seeds 31.09 g and 32.99 g, respectively was recorded from Extra Early maize. Comparing the maize grain yield, the result indicated significant difference (p<0.05) in both cropping seasons. FARZ 32 had the highest grain yield, 4.37 and 4.30 tonnes per hectare in 2015 and 2016 in both cropping seasons. Oba super 2 had 4.30 and 4.20 tonnes per hectare in 2015 and 2016. The local cultivar Uweb had 2.49 and 2.59 tonnes per hectare grain yield in both years. The least grain yield, 2.32 and 2.45 tonnes per hectare, respectively was from Extra early maize. Oba, Farz -32, Oba super 2 and Oba 98 were recommended to farmers in the study area.

Two years study was carried to assess level of resistance to yam beetle and termite attack by some yam genotypes in Uyo, southeastern Nigeria. The experiment was laid out in randomized complete block design replicated three times. The five yam genotypes tested for yam beetle and termite attack at harvest were; TDr 95/19127, 95/18894, 95/19531, 75/1/2 and Uyo popular local variety eteme. The results showed variations in yield and susceptible to termite and beetle attack at harvest. The TDr 75/1/2 had highest yield 30.41 and 29.75t/ha, followed by TDr 95/18894, 28.86 and 27.93t/ha in 2008 and 2009 respectively. The local variety had lowest yield 9.75 and 10.07 t/ha in 2008 and 2009 respectively. The local variety had 14.58% termite attack in 2008 while 95/19127 had 12.64% in 2009. The local variety had highest beetle attack 45.83% and 32.76% in 2008 and 2009 respectively. The least prone to termite and beetle attack was recorded in TDr 75/1/2, 2.72 and 8.15% respectively in 2008 and 2.99 and 6.59% in 2009 respectively. The study suggested that TDr 75/1/2 and 95/18894 should incorporate in the farming system of the study area due to their high yielding capacity and resistance to pest attack at harvest.

The industrial sectors of Bangladesh mostly depend on the petroleum industry. Historically, risk and hazards are the common scenario in the petroleum industry occurring due to lack of efficient risk assessment, resulting in financial loss, injury, or harm for people, and the environment. To prevent these losses, it is essential to implement the best risk assessment plan.The objective of this research is toenhance the implementation of safety engineering systems in the petroleum industry through risk assessment. For this, purpose at first, the questionnaire survey for the perception of risk identification and safety system is performed to determine the current defects in the safety engineering system. Then, using SPSS software the risk analysis as well as ANOVA and reliability analysis of the collected data is accomplished to examine top risk factors. Concerning both interview and questionnaire analysis, an integrated risk assessment-based safety analysishas beenperformed to optimize the performance of the safety engineering system.The outcomes of this research expose the technical, procedural, and behavioral gap in the current risk assessment for the safe implementation of the safety engineering system of the petroleum industry of Bangladesh.

Characterization of genetic diversity is the foundation step for crop improvement, which provides a basis for analyzing combining ability and heterosis of inbred genotypes during a hybridization program. An investigation was carried out at the field laboratory of the Genetics and Plant Breeding department in Bangabandhu Sheikh Mujibur Rahman Agricultural University, to elucidate the genetic architecture by evaluating 12 morphological and 4 molecular (SSR) markers within 52 diverse S1 genotypes, and to assess the relationship of molecular and morphological GD. An almost equal amount of PCV and GCV coupled with high heritability and genetic advance for the traits cob weight (gm), NKPC, and NKPR lead to the selection of promising genotypes based on these characters. Correlation coefficient and scatter plot matrix established a positive and strong relationship of KL (mm), KW (mm), and KT (mm) with 100 kernel weight (gm) suggesting the importance of kernel morphology. Mahalanobis D2 statistics revealed the highest inter-cluster distance between I and II. The percentages of molecular variance within the population and among the population were 76% and 14 %, respectively. The optimum K-value was 5. Heatmap relying on molecular GD exposed MMIL-28, MMIL-54, and MMIL-96 as the most diverse lines. SHE analysis hypothesized the increase of richness and diversity over time. Less correlation between the divergence generated from morphological traits and molecular markers suggested that the morphological variation may be determined by environmental factors and also by genetic factors. A strategy for the effective selection of predicting parental lines for a future hybridization program was developed.

The study was conducted to investigate the effect of feeding algae biomass rich in polyunsaturated fatty acids at 0%, 1.5%, 3.0% and 4.5%, respectively, using Panicum maximum as basal feed, on rumen fermentative properties of pregnant West African Dwarf (WAD) does. A total of twenty (20) pregnant WAD does were grouped into four treatments containing five (5) animals per treatment and randomly allotted to the experimental diets. Rumen fluid were collected prior to mating and at the last trimester of pregnancy for determination of rumen fermentative properties. Data obtained were subjected to one way Analysis of Variance in a Completely Randomized Design. Inclusion of algae biomass up to 4.5% had no significant (p>0.05) effect on bacteria population in the rumen of the experimental does. The inclusion levels of algae biomass gave rise to the predominance of Eischeria coli (a gram negative bacterium) in the rumen of pregnant does fed the algae biomass diet. Results obtained showed a significant (p<0.05) decrease in the values obtained for ammonia nitrogen concentration in the rumen of the pregnant does when compared to the values recorded prior to mating. The total volatile fatty acid production and its molar proportion in the rumen fluid were not significantly (p>0.05) influenced by the inclusion of algae biomass.

This study examines the impact of bacterial concrete on strength and self-healing. Bacterial concrete has better compressive strength, permeability, corrosion resistance, chemical precursors, alkalinity resistance, and mechanical stress. Bacillus subtilis calcium lactate and spore powder effects are explored in this study, and the influence of this bacterial form on strength and self-healing capacity to crack repair. The Bacillus subtilis concentration 105 cells/mL is used in concrete with calcium lactate 0.3% of cement. In another trial, calcium lactates 0.3% and spore powder 0.5% of cement with Bacillus subtilis concentration of 105 cells/mL and lightweight expandable clay aggregate (LECA) is 30% replaced to the coarse aggregate used in concrete respectively. The conventional concrete and bacterial concrete cubes were molded with dimensions of 150 mm x 150 mm x 150 mm, cylinders with dimensions of 100 mm x 200 mm, and a beam with dimensions of 100 mm x 100 mm x 500 mm. These specimens were evaluated after 7 and 28 days of cure. The compressive, split tensile, and flexural strength of bacterial concrete was raised by 23%, 8%, and 7%, respectively when compared to conventional concrete. Thus, the experimental findings reveal that Bacillus subtilis at 105 cells/ml cells with 0.3% calcium lactate has a substantial impact on the strength and self-healing of bacterial concrete.

Commercial gardening of Agar Plant (AP) is an emerging part of agribusiness enterprises in Bangladesh which is existence in some cases at a small scale of limit, demanding the proper strategies for prompting AP commercial production. Therefore, the objectives of the study were to identify the commercial production practices, producers’ returns and the risk-bearing ability in small-scale gardening of agar plants. Bharlekha upazila in Moulvibazar district of Bangladesh was selected as the study area. Data were collected from randomly selected eighty AP producers of that area during the year 2017.The average life of the plants is around 16 years, and the production activities are the seed and sapling collection and growing; land selection and preparation and sapling planting; intercultural operation; nail setting on agar plants; and harvesting and selling which are mainly done by the AP producers. There is a strong backward and forward linkages have been identified. Results showed that the AP plant production enterprise is highly profitable only in the long-term period of 16 years time, which is not possible in short-run. Also, the break-even analysis of AP production resists a large drop of yield and price before incurring a loss, which gives the farmers a comfortable margin of safety and a risk bearing ability. The study recommended that the government and non-government organizations should come forward to provide directions and supports for promoting and sustaining agar plant production on commercial basis throughout the country.

Enhancing feed efficiency in converting feed mass into pig body mass is a critical phase for the profit in producing pig. To improve the metabolic utilization of dietary nutrients, it relies heavily on a healthy gut or gastrointestinal tract, and only a healthy digestive can result in better feed digestion and better nutrient absorption. Thus, the study investigates the growth performance, the response of the digestive morphology of native pigs, which treatment will stretch higher output and variations under different levels of fermented mungbean. The experimental research design was employed to determine the response of the three (3) pigs treated with mungbean for 70 days. The growth performance of pigs treated with different levels of fermented mungbean has a total gain weight of 7.50kg for Treatment 1; Treatment 2 is 9.00kg and, Treatment 3 is 6.50kg and is observed no significant difference on the final weight and the total weight with a p-value of > 0. 050; the response on digestive morphology such as small intestine, large intestine, heart, stomach, liver, lungs, esophagus, spleen, and kidney of pigs shows no variations on their length, width, and weight with a p-value of >0.050 under the different level of fermented mungbean; and resulted with high output treated with different level of fermented mungbean is observed on Treatment 2 with a lowest feed conversion efficiency of 3.89 for feeds and 1.39 for mungbean. Treatment 2 has the highest gain weight among the treated sample; the intestinal morphology of pigs was comparable under the three treatments; treatment 2 has the lowest feed conversion efficiency.

Study of stream insect fauna provide valuable insights into aspects of the stream channel ecosystem. The present study was conducted to investigate the aquatic stream living insect community, abundance and diversity in a hilly stream, Balukhali chora of Chittagong University campus to determine the water quality. The insects were collected with bottom dredge net from the edge and benthic regions of the Riffle zone and the Pool zone of the stream from January 2018 to December 2018. Insects were sampled using standard entomological method and determined their tolerance value. A total of 2535 insects were recorded, belonging to six insect orders, 30 families and 45 genera. The abundance ratio was higher in all the months in the Pool zone excepting the months of April, May, June and October. The orders Ephemeroptera, Odonata and Diptera were abundant in the Pool zone, while Hemiptera, Coleoptera and Lepidoptera were abundant in the Riffle zone. On the basis of Biotic Index, the most dominating orders Odonata and Hemiptera indicated good water quality, though the dipteran genus Chironomus spp. indicated poor quality in some of the months. The stream insect community structure of the two zones indicated that the overall water quality of the stream water was very good. Both manmade and natural interruption occurred in the stream channel due to human settlement, agricultural runoff and natural disasters. The study was conducted to know the abundance and diversity of aquatic insect community which indicated the water quality of the stream.

Four (4) different ratios of wood vinegar namely; 1:5; 1:10; 1:20 and 1:30 mL WV to water ratio extracted from coconut shell was tested to determine their growth effect on Brassica juncea or mustard plant or locally known as mustasa. Parameters measured were leaf number, plant height, plant leaf width. Using randomized complete block design, experimental tests were conducted using Brassica juncea as test plants. The samples of 10 days old were allowed to flourish in a potted plant with day to day application of the wood vinegar solutions together with the negative control for a total of 30 days. Results revealed that the wood vinegar ratios applied have no significant effect on the growth of the mustard plant in terms of its leaf number, plant height and leaf width. This indicates that coconut shell wood vinegar at 1:5, 1:10, 1:20 and 1:30 are not applicable ratios for plant production, as that an increased wood vinegar application increases plant production and growth.

This research was conducted to find out the seasonal (monsoon and post monsoon) variation in gut contents of Labeo calbasu from June to November, 2016 in Dekhar haor of Sunamgonj district, Bangladesh. Three orders of phytoplankton were identified from the gut content viz. Bacillariophyceae (11 genera), Chlorophyceae (9 genera), and Cyanophyceae (4 genera). Bacillariophyceae (6.98±1.61×103cell/L) were identified as the most dominant phytoplankton group. Two types of zooplankton viz. crustacean (5 genera) and rotifer (5 genera) were identified. Crustaceans (0.88±0.4×103cell/L) were identified as the dominant group among zooplankton. Feeding intensity (average index of fullness, Gastrosomatic index) was higher in the post monsoon season compared with the monsoon season. The findings concluded that L. calbasu prefers phytoplankton over zooplankton, and the plankton consumption was slightly higher in the post-monsoon season than in the monsoon season. This research is expected to be crucial in the management and conservation of endangered L. calbasu in open waters, as well as provide baseline work for future research and open the path for captive aquaculture.

The growth and yield of cucumber in response to the effect of poultry manure and inorganic fertilizer (NPK 20:10:10) was evaluated at the Teaching and Research farm of Kogi State University Anyigba, Nigeria during the 2021 raining season. Treatment consisted of poultry manure which was applied at 0, 7.5 and 15t/ha and inorganic fertilizer (NPK 20:10:10), applied at the rate of 0, 0.2, 0.4 and 0.6t/ha respectively. The experiment was laid in a Randomized Complete Block Design (RCBD) with three replicates following all agronomic practices as recommended. Combined rates of poultry manure at 15t/ha and 0.6t/ha of fertilizer were found to significantly increased (P=0.05) growth characters such as number of leaves, vine length at 4, 6 and 8WAS. Longest vines of 602.75cm and 213.75leaves was obtained with combined application of 15t/ha PM + 0.6t/ha NPK fertilizer at 8WAS respectively. Similarly, Fruit length, Number of fruits, Fruit weight/plant, Fruit yield/ha were significantly influenced (P=0.05) by the combined application of 15t/ha PM + 0.4t/ha NPK, while the control plots consistently gave the least yield across sampling periods.

The mud crab business is being considered by most marketing operators to be a profitable and sustainable business due to the high demand in the international market. This study aims to determine value addition at different actors-based steps; primary data was collected from 100 respondents (40 collectors, 10 fatteners, 20 depot owners, 20 suppliers and 10 exporters) who were selected randomly from Khulna, Satkhira and Dhaka district. The mud crab analysis reveals that the value addition of the fatteners was the highest among all other intermediaries which was Tk. 11525 and Tk. 10665 per 100 kg of crab for the grade XXLPD in Khulna and Satkhira district respectively, whereas the lowest value addition was Tk. 1450 and Tk. 1090 per 100 kg of crab for grade KS3. The mentioned districts’ highest value addition by depot owners were Tk. 1191 and Tk. 1200 per 100 kg of crab for the grade FF1 respectively, while lowest value addition was Tk. 691 and Tk.750 per 100 kg of crab for the grade L and M, and by suppliers it was Tk. 2918 and 2758 per 100 kg of crab for the grade FF1. The range of value addition by exporters for Hong-Kong and Taiwan market was Tk. 260.25 to Tk. 13825 per 100 kg of crab. Value addition for exporting female crab to Taiwan market was greater than Hong-Kong market.

Massive industrialization promotes economic growth and causes environmental pollution and degradation. The purpose of this research is to determine the impact of industrialization on the physical environment and socio-economic condition at Alipur industrial areas, Habiganj, Bangladesh, by measuring water, soil, air, sound quality parameters and a random sampling questionnaire survey on socio-economic conditions. Most of the measured physicochemical parameters exceeded the acceptable limit of inland surface water. The pH of the effluent water ranged from 4.83 to 8.58, which was found lower than the standard level for two points. The DO level was within the range of 1.98 to 3.32 mg/L indicating that aquatic life is in danger because of the lower level of DO. BOD, COD, TSS, and TDS ranged from 133 to 255.8 mg/L, 330 to 566 mg/L, 1960 to 2170 mg/L and 4110 to 5500 mg/L, respectively. The concentration of Nitrates (14.63 mg/l), Phosphate (10.33 mg/l), and Copper (5.49 mg/l) in the water samples found more than the inland surface, public sewer STP, and Irrigated land standard. The concentrations of CO (10.71), NO2 (90.56), and SO2 (104.34) in the air are near the acceptable level, indicating that the air was moderately polluted. The Durbin-Watson statistic is 0.495 from the model summary indicating the research model has a positive auto-correction, and the coefficient of significance is at 0.00, and Test F at 150.345 suggests that the model is suitable. Furthermore, the coefficient of the land area lost due to industrial park construction is found at 0.00, indicating household income increased when people lose land and non-agricultural sectors like building houses, investing in services, traffic systems. On the other hand, it is undeniable that few members whose land is acquired turned unemployed during industrial parks, resulting in the high number of unemployed workers being high and income declines.

Traditional mixtures of food crop species involve intercrop of plants with dissimilar size and growth cycle on the field. However, the Relative Yield Potential (RYP) and Land Equivalent Ratios (LER) of these mixtures are given less prejudice especially in monetary terms by ancient farmers. This necessitate an experiment conducted during the 2016 and 2018 rainy seasons. The treatments consisted of Maize (TZESR – Open Pollinated), Cowpea (Sampea - 7), Peanut (Samnut - 24) and Soybean (TGX 713 – 09D) as sole crops sown at seed rates of 25 and 50 kgha-1 for maize and legumes respectively. The grain legumes were intercropped with maize in the ratio of 4:1, 2:1 or 1:1 as additional rows in between the normal rows of maize planted at a spacing of 75 x 25cm. Results revealed that intercropping of maize with either cowpea, peanut or soybean in 2:1 ratio was most productive in terms of maize equivalent yield and declined thereafter, with increase in the legume proportion, though maintained its superiority over sole planting of maize. Maize intercropped with soybean in the ratios 4:1 gave the highest mean biological maize equivalent compared to its sole planting at different combinations of legumes. Maize + Peanut gave the highest mean Land Equivalent Ratio (1.81) followed by maize + Cowpea (1.74) and maize + soybean (1.59) all sown in the ratio of 2:1. Intercropping of legumes with maize appeared to be more aggressive than sole planting of maize or legumes. Maize + Peanut (2:1) gave the highest mean Monetary Advantage Index (MAI) of 7789.0, Mean Yield Index (MYI) of 79.0. However, regardless of the ratio in which Maize + peanut was combined, result of 47% MAI showed a greater biological relationship, effective competition, hence recommended. Highest cost/benefit ratio (5.09 and 4.45) was obtained with maize + soybean (4:1) during 2016 and 2018, respectively.

This paper reports the dispersion of nanoclay in vinylester using co-rotating twin screw extrusion and ultrasonication for preparing nanoclay/vinylester gel coat. Two sets MMT/vinylester specimens, namely Type 1 and Type 2 were prepared for comparative studies. While Type 1 specimens were prepared using ultrasonication only, Type 2 specimens were prepared using both ultrasonication and twin-screw extrusion. Type 2 specimens showed lower levels of nanoclay intercalation and higher levels of exfoliation. By using the MMT/vinylester gel coat so prepared by the two different routes, MMT/vinylester/glass specimens were fabricated and tested for mechanical properties. Type 2 based nanocomposite specimens showed greater values of ultimate tensile strength, flexural strength, interlaminar shear strength and impact strength. Scanning Electron Micrographs (SEM) of tensile fractured Type 2 based specimens showed less agglomeration of nanoclay than that of Type 1 based specimens.

Farmers’ awareness on fast-moving developments in technologies affects the agriculture operations. Smartphones have been useful in agriculture for their mobility and accessibility. The mobile-based application for agricultural crops of Silang was designed to provide information about crops. Information includes health benefits of the fruits, uses of the crops, and how its different parts can be develop to another product. The application is the first step towards understanding the benefits of the by-products of the crop in interactive way. The software development was anchored on agile model. The performance of the application was evaluated by 40 persons composed of subject matter experts including crops farmers and agriculturist, IT experts and potential users. The developed application was rated using Core App Quality Standard utilizing the criteria of Visual Design and User Interaction, Functionality, Compatibility, Performance and Stability, and Security. The app’s performance was adherent to the standard as verified by the app’s overall rating of excellent. The application will be able to help the crop farmer to get information in utilizing wastes into by-products, hence would be an opportunity to augment their income. It is recommended that the application may be added with crops available from other regions and consider a dynamic and cross-platform version of the app to maximize potential users.

This correlational study explored the relationship between informal lender’s practices and profitability of fifty-three (53) rice retailers in city of Borongan using a researcher-made-three part questionnaire on the business profile, level of practices among informal lenders and weekly income of the respondents. Data were sourced out from rice retailers who lent sum of money from “5-6” informal lenders, and were utilized using descriptive and inferential analysis test at .05 level of significance. Findings revealed that Majority of the respondents had been in the middle years of retailing business, used an average initial capital sourced out from their personal savings and are earning an average weekly income. The respondents’ perceived that informal lenders assess clients’ financial needs and willingness to pay without requiring collateral from them and that rice-retailers reloan due to fast processing of funds and the great customer service. Using regression analysis, year in business was found to be a significant predictor of increase in the profitability of rice retailing services. While, no significant relationship was seen between the rice retailers’ weekly net income and the level of practice among informal lenders. The researcher recommends that government and non-government agencies to provide intervention that will improve the microbusiness enterprise in the market using the help of informal and formal lending institutions and that wider scope of the study should be made to include other small business sectors that are affected by informal lenders.

This study was conducted at Crop Production Nursery Farm, Faculty of Agriculture, Kogi State University Anyigba. The study area which is Kogi State, to determine the effect of sheep dropping rate and staking on the yield and yield component of cucumber. Staked and unstaked and four treatment levels (0, 10, 20 and 30 kg per hectare) were evaluated. The study was conducted as a 2x1 factorial laid out in randomized complete block design (RCBD) with three replications. Treatment means were separated using least significant difference (LSD0.05). The result generated from the study showed that number of fruits, number of marketable fruits and weight of fruits. Staking had no significant effect on number of fruits, but showed significant effect on number of branches, number of leaves and plant height. The staked treatment constantly performed better with higher values than the non-staked treatment. Result obtained from data analysis shows that Cucumber growth, yields and yield components were enhanced with the incorporation of Poultry droppings across various treatment rates. Hence for maximum production of cucumber staking and optimum sheep dropping should be adopted.