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Search Results: 1 - 10 of 316807 matches for " N. K. Halder "
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Performance of Gladiolus as Influenced by Boron and Zinc
N. K. Halder,Md. Rafiuddin,M. A. Siddiky,R. Gomes
Pakistan Journal of Biological Sciences , 2007,
Abstract: The field study of B and Zn on Gladiolus was conducted at Floriculture Farm of HRC, Gazipur and RARS, Jessore during 2005-2006. The objective was to evaluate the response of B and Zn and to find out the optimum dose of the same for production of gladiolus. It appeared in studied data reveals that B and Zn made promising response to the growth and floral characters of gladiolus. It was also noticed in the tables that B and Zn both either in single or in combination exerted tremendous effect on the yield and quality of gladiolus. However, with subsequent addition of higher rates of B and Zn progressively increased the selective growth and flower characters to some extent and beyond the further increment of the dosage declined the results noticeably. It is also reported that gladiolus is highly responsive to chemical fertilizers. The sixteen treatment combinations included in the study noted that B and Zn at the rate of B2.0 Zn4.5 kg ha-1. along with blanket dose of N375 P150 K250 S20 kg and CD 5 t ha-1 exhibited the best performance in flower production and stretched the vase life of flower. The studied parameters like plant height (79.83 and 87.61 cm), length of spike (71.2 and 67.33 cm) length of rachis (48.86 and 45.08 cm) and leaves number (10.77 and 9.87/plant) significantly responded to the combined application of boron and zinc at the rate of B2.0 Zn4.54 as compared to other treatment combinations. Floral characters like floret number (12.85 and 12.45/spike), floret size (9.76x8.93 and 10.28x9.77 cm) and weight of stick (36.73 and 45.12 g) also significantly influenced by said treatment (B2.0 Zn4.5 kg ha-1) which was markedly differed over rest of treatments combination. Similar trend was noticed as well in single application of B and Zn with increase rates.
Prospect of Pongamia pinnata (Karanja) in Bangladesh: A Sustainable Source of Liquid Fuel
P. K. Halder,N. Paul,M. R. A. Beg
Journal of Renewable Energy , 2014, DOI: 10.1155/2014/647324
Abstract: Energy is the basic requirement for the existence of human being in today’s digital world. Indigenous energy of Bangladesh (especially natural gas and diesel) is basically used in power generation and depleting hastily to meet the increasing power demand. Therefore, special emphasis has been given to produce alternative liquid fuel worldwide to overcome the crisis of diesel. Pongamia pinnata (karanja) may be an emerging option for providing biooil for biodiesel production. Although karanja biooil has been used as a source of traditional medicines in Bangladesh, it can also be used for rural illumination. This paper outlines the medical and energy aspects of Pongamia pinnata. It has been assessed that Bangladesh can utilize about 128.95?PJ through Pongamia cultivation in unused lands. The paper reviews the potentiality of Pongamia pinnata as a source of biodiesel and its benefits in Bangladesh. The paper also revives that, about 0.52 million tons of biodiesel can be produced only utilizing the unused lands per year in sustainable basis as it reduces CO2, CO, HC, and NOx emission compared to pure diesel. 1. Introduction Pongamia pinnata (L.) Pierre (family: Leguminosae) is an important nonedible minor oilseed tree [1] that grows in the semiarid regions. It is probably originated from India and grows naturally in India, Bangladesh, Pakistan, Malaysia, Thailand, Vietnam, Australia, Florida, and Sri Lanka and also in northeastern Australia, Fiji, Japan, and the Philippines [2]. In the USA Pongamia pinnata was introduced into Hawaii in the 1960s by Hillebrand [3]. In Bangladesh it is popularly known as Koroch. It is an adaptable tree for tropical and subtropical regions which requires excellent drainage and a sunny location. In India, billions of karanja trees exist where karanja trees are cultivated commercially and seed is collected from December to April. However, in Bangladesh it is not cultivated commercially yet. In India, one person can collect 180?kg of seeds in 8 hours of a day where the collection cost is INR 4 per kg [4]. 1.1. Classification ?Kingdom: Plantae?Division: Magnoliophyta?Class: Magnoliopsida?Order: Fabales?Family: Leguminosae?Genus: Pongamia?Species: pinnataSource: [5] 1.2. Botanic and Chemical Characteristics Pongamia pinnata (chromosome number: 22) is a very fast-growing medium size plant with an average height of 30–40?feet and spreads canopy for casting moderate shade. Pongamia pinnata has a varied habitat distribution and can grow in a wide range of conditions. It can grow in various types of soil like salty, alkaline, hefty clay,
Response of Ginger to Zinc and Boron Fertilization
N.K. Halder,N.C. Shill,M.A. Siddiky,R. Gomes
Asian Journal of Plant Sciences , 2007,
Abstract: A field study was conducted at Brown Hill Soils (Eutrochrepts) of South Eastern Hilly region at Hill Tracts Agricultural Research Station, Ramgarh, Khagrachari during the Kharif seasons of 2004-2005 and 2005-2006, respectively. The objective was to evaluate the response of ginger (cv. local) to B and Zn fertilization and to find out the optimum dose of Zn and B for maximizing yield of ginger in Hilly Region. Four levels of B (0.1, 2 and 3 kg ha-1) and Zn (0, 1.5, 3.0 and 4.5 kg ha-1) along with combined blanket dose of N180 P50 K120 S20 and CD5 t ha-1 were taken in the experiment to study. It is evident from studied data revealed that Zn either in single or in combination with B made significant effect on ginger production in micronutrient deficient soils. However boron produced 46.72% higher yield in first year and 89.92% higher yield in second year over boron control (Bo) whole calculated 23.72 and 52.26% higher yield than that of Zinc in two consecutive years. The integrated effect of B and Zn was found to be highly significant and markedly influenced the rhizome yields and other yield attributes of ginger. The boron (3 kg ha-1) and zinc (4.5 kg ha-1) individually produced rhizome yield 23.5 and 25.8 t h-1 and 20.4 and 22.3 t ha-1 in three consecutive years of 2004-2005 and 2005-2006, respectively. However, integration of Zn and B at the maximum level (B3.0 Mo4.5 kg ha-1) significantly produced the highest ginger yield (25.5 and 26.8 t ha-1) and 125 and 143% yield increase over Boron-Zinc control (Bo Zno) in two successive years of study. Similarly, the highest net economic return Tk.7, 52.030 and Tk. 804000 and the highest marginal rate of return (MRR) 484 and 548%, respectively were obtained with the application of B at the rate of 3 kg ha-1 and Zn at the rate of 4.5 kg ha-1 which was found to be economically profitable for ginger production in South-Eastern Hilly region.
Response of Turmeric to Zinc and Boron Fertilization
N.K. Halder,N.C. Shill,M.A. Siddiky,J. Sarkar
Journal of Biological Sciences , 2007,
Abstract: The field study of Zn and B on the yield of turmeric was carried out at Brown Hill Soils (Eutrochrepts) of South Eastra Hilly region of at Hill Tracts Agricultural Research Station, Ramgarh, Khagrachari during the Kharif seasons of 2001-2005 and 2005-2006, respectively. The objective was to evaluate the response of turmeric to Zn and B fertilization. Four levels of B (0, 1, 2 and 3 kg ha-1) and 4 levels of Zn (0, 1.5, 3.0 and 4.5 kg ha-1) oxide were included in the study. A combined blanket dose of N130P35K8S20 kg and CD 5 t ha-1 were also mixed in all the treatment plots. It was evident from two years study that both Zn and B either in single or in combination had significant effect on the growth and yield attributes of turmeric in Zn-B deficient soil at experimental site. Boron produced approximately 11.0 and 18.19% higher yield than Zinc in both the years. However, the highest turmeric yield (21.4 and 25.5 t ha-1) was recorded with the maximum B level (B3.0 kg ha-1) which was 79.58% higher over B control (B0). While Zn produced 28.57 and 66.43% higher yield compared to Zn control (Zn0) treatment. However, the integrated effect of Zn and B was und to be highly responsive and markedly dominated the turmeric yield and their yield attributes. The highest rhizome (turmeric) yield (27.5 and 28.9 t ha-1) was recorded with the combination of Zn and B at the rate of 4.5 and 3.0 kg ha-1 and 170% higher yield over Zn-B control treatment (Zn0B0) in 2nd year and 145% in first year. It was also revealed from the economic analysis that same Zn-B combination gave the highest gross margin Tk. 422704 and Maximum Rate of Return 1557% (MRR) which was economically profitable r turmeric production in hilly region.
Response of Wheat Varieties to Boron Application in Calcareous Brown Floodplain Soil at Southern Region of Bangladesh
N.K. Halder,M. A. Hossain,M.A. Siddiky,N. Nasreen
Journal of Agronomy , 2007,
Abstract: A field trial was conducted at Calcareous Brown Floodplain Soils of Jessore Regional Agriculture Research Station during the rabi seasons of 2000-2001 and 2001-2002. The objectives were to evaluate the response of wheat varieties to different levels of Boron and to find out the optimum dose of B for maximizing yield of wheat viz protiva, Gourab and Sourav and four levels each of B (0, 1.0, 2.0 and 2.5 kg ha-1) along with a blanket dose of N120P45K80S20Zn2 kg ha-1 and cowdung 5 t ha-1 taken in the study. Results showed that variety protiva along with 2 kg B ha-1 produced significantly highest yield in both the years of study. The said treatment gave the highest mean seed yield (5.3 t ha-1) by 66% increase over the boron control (B0). In case of single effect, all the varieties tested did not contribute significantly to the yield variation. Through the variety protiva was found to be superior as compared to other two varieties. On the other hand, boron either in combination or single greatly contributed to the yield. However, the highest mean yield (4.8 t ha-1) was recorded in 2 kg B ha-1 which was significantly 45% higher over boron control. In regression analysis, a linear but quadratic relationship was also observed between grain yield and level of B. It indicated beyond that dose, the seed yield might be declined with every successive dose of B.
Utilization of Bio-Oil for Cooking and Lighting
P. K. Halder,M. U. H. Joardder,M. R. A. Beg,N. Paul,I. Ullah
Advances in Mechanical Engineering , 2012, DOI: 10.1155/2012/190518
Abstract: Among the available alternative sources of energy in Bangladesh bio-oil is recognized to be a promising alternative energy source. Bio-oil can be extracted by pyrolysis as well as expelling or solvent extraction method. In these days bio-oil is merely used in vehicles and power plants after some up gradation .However, it is not used for domestic purposes like cooking and lighting due to its high density and viscosity. This paper outlines the design of a gravity stove to use high dense and viscous bio-oil for cooking purpose. For this, Pongamia pinnata (karanj) oil extracted by solvent extraction method is used as fuel fed under gravity force. Efficiency of gravity stove with high dense and viscous bio-oil (karanj) is 11.81% which of kerosene stove is 17.80% also the discharge of karanj oil through gravity stove is sufficient for continuous burning. Thus, bio-oil can be effective replacement of kerosene for domestic purposes. 1. Introduction The energy crisis is the main problem to mankind facing today as non-renewable energy like fossil fuels, oils and natural gases are often scarce due to rapid depletion of these resources. Although the actual reserve of this most important fossil fuel of Bangladesh has not yet been ascertained, a recent survey shows that there is as much as 195400000000?m3 of proven probable natural gas reserves in the country [1]. At present the country has 2,041 million?tons of coal reserve [2]. Total storage capacity of petroleum products (Diesel, kerosene, petrol, and octane) in the country is 687,500?tons which is only 8% of the total demand [3]. Economic development and civilization of any country depend on reliable energy supply. In Bangladesh poverty and lack of access to energy are closely linked. Energy in Bangladesh is indispensible for almost all economic activities, ranging from farm irrigation to the manufacture of goods by small and microenterprises. Energy is also indispensible for attaining the Millennium Development Goals (MDGs) for Bangladesh. Indigenous natural gas supply now is the principal fuel and accounts for about 86% of electricity generation. If natural gas is used for power generation at the present rate, this would result in complete depletion of existing reserves within 10–12 years. At present to meet total demand of energy, Bangladesh imports annually about 1.3 million metric?tons of crude oil and 2.7 million metric?tons (approx.) of refined petroleum products per annum is imported [4]. In order to meet the increasing energy demand for development of agriculture and industry and for the generation of
Response of Mustard as Influenced by Boron Fertilization in Non-Calcareous Dark Grey Floodplain Soil at Northern Region of Bangladesh
N.K. Halder,M.A. Siddiky,S. Nasreen,J. Sarkar
Asian Journal of Plant Sciences , 2007,
Abstract: A field study on mustard was conducted in Non-Calcareous Dark Grey Floodplain Soil (AEZ-1) at Rajbari, Dinajpur during the rabi seasons of 2000-2001 and 2001-2002. The objectives were to find out the optimum dose of boron and to evaluate a suitable variety for maximizing the yield of mustard. Four varieties viz., BARI Sarisha-6, BARI Sarisha-7, BARI Sarisha-8 and BARI Sarisha 9 integrated with four levels each of boron (0, 1.0, 1.5 and 2.0 kg ha-1) along with a blanket dose of N120 P35 K65 S20 Zn5 kg ha-1 and cowdung at the rate of 5 t ha-1 were tested in the study. The interaction effect of variety and boron had a significant response on the yield components of mustard. The highest seed yield (2.23 t ha-1) was recorded in BARI Sarisha-6 with 2 kg B ha-1 in the second year (2001-2002), while in the first year (2000-2001), the recorded yield was 1.51 t ha-1 which was statistically significant over the boron control (B0). However, the highest mean seed yield (1.87 t ha-1) was obtained from the same treatment combination by 35.5% yield increase in both the years of study. Though the individual effect of boron and variety were found to be more pronounced than interaction. Here, BARI Sharisha-6 and 2 kg B ha-1 separately augmented highest seed yields of mustard (1.91 and 1.98 t ha-1) for both the years of study when a blanket dose of other fertilizers were ensured. In regression analysis, the linear relationship between seed yield and the levels of boron was observed in the mean seed yield of two consecutive years of study. It meant beyond the level, the seed yield might be declined due to the toxic effect of excess dosage of boron.
Performance of Brinjal as Influenced by Boron and Molybdenum
M.A. Siddiky,N.K. Halder,Z. Islam,R.A. Begam
Asian Journal of Plant Sciences , 2007,
Abstract: The filed study was carried out at Horticultural Research Farm, BARI, Joydebpur during two consecutive seasons of 2004-05 and 2005-06, respectively to evaluate the response of Binjal to each levels of B (0, 0.75, 1.50 and 2.25 kg ha-1) and 4 levels of Mo (0, 0.75, 1.50 and 2.25 kg ha-1) were used in the study for treatment combination. A combined blanket dose of N P K S and CD at the rate of 120:45; 100:20 kg and 5 t ha-1 were also mixed up in all the treatment plots. It is evident from both first and second year results that B and Mo either in single or in combination made significant response to the yield and yield attributes of brinjal in B-Mo deficient soil of experimental site. Boron produced significantly higher yield 76.52 t ha-1 and 26% yield increase over B control (Bo). Similarly, Molybdenum also made positive response to the yield of brinjal. All the studied parameters were significantly influenced by applied molybdenum up to 1.50 kg ha-1. However, the highest brinjal yield (82.24 t ha-1) was recorded with Mo at the rate of 1.50 kg ha-1 and beyond that the yield declined steadily. The 88% yield increase was also noticed in the same treatment. Interaction effect of B and Mo was found to be highly responsive to the yield and yield components of brinjal. However, the highest yield (91.67 t ha-1) was recorded with B-Mo combination at the rate of B1.50 Mo1.50 kg ha-1 and 166% yield increase over B-Mo control (B0 Mo0) treatment in 2nd year due to well management practices and favorable agro-climatic condition compared to the first year result.
Performance of Mustard Varieties with Boron Fertilization in Calcareous Brown Floodplain Soil of Bangladesh
N.K. Halder,M.A. Hossain,M.A. Siddiky,Md. Rafiuddin
Journal of Agronomy , 2007,
Abstract: A field experiment was carried out at Calcareous Brown Floodplain Soil of Regional Agricultural Research Station, Jessore during the two consecutive seasons of 2000-2002. The objectives were to evaluate the effect of boron on the yield of mustard and to screen out the suitable variety (s) tested against different boron levels for maximizing yield of mustard in the study area. Four varieties of mustard viz., BARI Sharisha-6, 7, 8 and 9 and 4 levels each of boron (0, 1.0, 1.5 and 2.0 kg ha-1) along with a blanket dose of N120P35K65S20Zn5 kg ha-1 and cowdung 5 t ha-1 were taken in the study. Results revealed that BARI Sharisha-6 integrated with 1.5 kg B ha-1 was found to be superior to all other treatment combinations. The highest mean seed yield (1.96 t ha-1) was recorded with the said treatment by 25.64% yield increase. Among the 4 tested varieties of mustard, BARI Sharisha-7 showed a good performance and produced the highest mean yield (1.77 t ha-1) as compared to other varieties used. On the other hand, boron at the rate of 1.5 kg ha-1 individually increased the highest seed yield by 58.83%, over boron control (Bo). However, from regression analysis, a positive but quadratic relationship was observed between seed yield and boron levels.
Brain Painting: First Evaluation of a New Brain–Computer Interface Application with ALS-Patients and Healthy Volunteers
Jana I. Mün?inger,Sebastian Halder,Sonja C. Kleih,Adrian Furdea,Valerio Raco,Adi H?sle,Andrea Kübler
Frontiers in Neuroscience , 2010, DOI: 10.3389/fnins.2010.00182
Abstract: Brain–computer interfaces (BCIs) enable paralyzed patients to communicate; however, up to date, no creative expression was possible. The current study investigated the accuracy and user-friendliness of P300-Brain Painting, a new BCI application developed to paint pictures using brain activity only. Two different versions of the P300-Brain Painting application were tested: A colored matrix tested by a group of ALS-patients (n = 3) and healthy participants (n = 10), and a black and white matrix tested by healthy participants (n = 10). The three ALS-patients achieved high accuracies; two of them reaching above 89% accuracy. In healthy subjects, a comparison between the P300-Brain Painting application (colored matrix) and the P300-Spelling application revealed significantly lower accuracy and P300 amplitudes for the P300-Brain Painting application. This drop in accuracy and P300 amplitudes was not found when comparing the P300-Spelling application to an adapted, black and white matrix of the P300-Brain Painting application. By employing a black and white matrix, the accuracy of the P300-Brain Painting application was significantly enhanced and reached the accuracy of the P300-Spelling application. ALS-patients greatly enjoyed P300-Brain Painting and were able to use the application with the same accuracy as healthy subjects. P300-Brain Painting enables paralyzed patients to express themselves creatively and to participate in the prolific society through exhibitions.
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