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Swain S.C.,Odisha University of Agriculture and Technology | Padhi S.K.,University
Pakistan Journal of Agricultural Sciences | Year: 2012

Coal ash management would remain a great concern all over the world. Several studies proposed that there is an ample scope for safe utilization of coal ash as a soil ameliorant that may improve physical, chemical and biological properties of the soil and is a source of readily available plant micro and macro nutrient. With this concept a pot culture experiment was carried out in the eastern ghat high land zone of Odisha, India under open condition in the nursery. Different levels of coal ash and soil mixture were used in different combinations to check their effect on the physio-morphological and biochemical parameters of guava. The study on the effect of varying levels of coal ash on guava revealed that the combination of 50:50 and 25:75 coal ash and soil mixture increased the seed germination, seedling characteristics, biomass, vegetative growth and chlorophyll content of the seedlings. The increase in growth traits was attributed to increase in nutrient acquisition of plants grown under above combinations. On contrary 100% coal ash in the growing medium reduced seed germination, seedling vigour, growth and biomass per plant. The leaf nutrient status of N, P, K, Ca, Mg, S and the micro nutrients Zn, Mn, B, Mo, Fe and Cu were found to be higher in the treatments having higher proportion of coal ash in the growing medium than other treatments and the lowest was recorded in control (no coal ash). The findings suggest that application of coal ash in certain proportion is beneficial in terms of growth parameters and nutrient acquisition in guava. Source

Misra N.,CSIR - Institute of Minerals And Materials Technology | Patra M.C.,Odisha University of Agriculture and Technology | Panda P.K.,CSIR - Institute of Minerals And Materials Technology | Sukla L.B.,CSIR - Institute of Minerals And Materials Technology | Mishra B.K.,CSIR - Institute of Minerals And Materials Technology
Journal of Biomolecular Structure and Dynamics | Year: 2013

The concept of using microalgae as an alternative renewable source of biofuel has gained much importance in recent years. However, its commercial feasibility is still an area of concern for researchers. Unraveling the fatty acid metabolic pathway and understanding structural features of various key enzymes regulating the process will provide valuable insights to target microalgae for augmented oil content. FabH (â-ketoacyl-acyl carrier protein synthase; KAS III) is a condensing enzyme catalyzing the initial elongation step of type II fatty acid biosynthetic process and acyl carrier protein (ACP) facilitates the shuttling of the fatty acyl intermediates to the active site of the respective enzymes in the pathway. In the present study, a reliable three-dimensional structure of FabH from Chlorella variabilis, an oleaginous green microalga was modeled and subsequently the key residues involved in substrate binding were determined by employing protein- protein docking and molecular dynamics (MD) simulation protocols. The FabH-ACP complex having the lowest docking energy score showed the binding of ACP to the electropositive FabH surface with strong hydrogen bond interactions. The MD simulation results indicated that the substrate-complexed FabH adopted a more stable conformation than the free enzyme. Further, the FabH structure retained its stability throughout the simulation although noticeable displacements were observed in the loop regions. Molecular simulation studies suggested the importance of crucial hydrogen bonding of the conserved Arg91 of FabH with Glu53 and Asp56 of ACP for exhibiting high affinity between the enzyme and substrate. The molecular modeling results are consistent with available experimental results on the flexibility of FabH and the present study provides first in silico insights into the structural and dynamical aspect of catalytic mechanism of FabH, which could be used for further site-specific mutagenic experiments to develop engineered high oil-yielding microalgal strains for biofuel production. Copyright © 2013 Taylor &Francis. Source

Mishra M.M.,Sambalpur University | Mohanty M.,Sambalpur University | Gulati J.M.L.,Sambalpur University | Nanda S.S.,Sambalpur University | Nanda S.S.,Odisha University of Agriculture and Technology
Indian Journal of Agricultural Sciences | Year: 2013

A field experiment was conducted consecutively for four years (2004-05 to 2007-08) at Regional Research Station, Chiplima (Sambalpur), Odisha on sandy loam soil with pH 6.0 and organic carbon content of 0.56%. The available N, P and K were 212, 15.7 and 89 kg/ha respectively. The experiment was laid out in randomized block design involving 10 rice based crop sequences with three replications. Among various cropping sequences evaluated, rice (Oryza sativa L.)- frenchbean (Phaseolus vulgaris)-greengram (Vigna radiata L.) produced the highest rice equivalent yield (17.31 tonnes/ ha/year), net return (ruppes 39 899/ha), benefit: cost ratio (2.25) and monetary advantage (140.48 ruppes/ha/day). This system was the most sustainable with sustainable yield index of 0.40 and sustainable value index of 0.84 with higher energy productivity (0.854 kg/MJ) and energy intensiveness (0.078 MJ/Re). However, the rice- groundnut-sesame system had highest land use efficiency of 87.14% whereas rice-radish-greengram registered the highest production efficiency (61.54 kg/ha/day). Rice- groundnut - greengram sequence was found to be the most efficient user of N (138.8 kg yield/ha N applied) whereas rice - groundnut - fallow used P (388.3 kg yield/ha N applied) and K (202.6 kg yield/ha N applied) more efficiently than that of other cropping sequences. The study further revealed that rice productivity could be enhanced by 19.1 and 17.7% due to inclusion of oilseeds and pulses, respectively than that of its monocropping.. Source

Pradhan A.K.,Siksha O' Anusandhan University | Kar S.K.,Siksha O' Anusandhan University | Mohanty M.K.,Odisha University of Agriculture and Technology
International Conference on Electrical, Electronics, Signals, Communication and Optimization, EESCO 2015 | Year: 2015

The stand-alone hybrid renewable power generation systems usually have lower costs with higher reliability than solar photovoltaic (PV) or wind energy system only. The most usual hybrid systems are PV/Wind/Battery and PV/Diesel/Battery. The excess energy is stored usually in lead-acid type of batteries. The optimization design is carried out by minimizing the unit cost of energy (UCOE) and GHG (Green House Gas) emissions (CO2, NOx and particles) for the various cases, comparing the results obtained by means of HOMER (Hybrid Optimization Model of Electric Renewable) software. In this paper, the optimal cost analysis of hybrid energy system is based on the load profile, solar irradiance, wind speed and price of fuel, which is collected from an un-electrified village near Bhubaneswar, Odisha in India. Moreover, the optimization of the system is obtained by varying the sensitivity variables like solar radiation and wind speed data. The cash flow summary of the hybrid system is obtained which will be useful for the optimal cost allocation of each individual component utilized in the system. © 2015 IEEE. Source

Singh S.N.,Indian Institute of Sugarcane Research | Chauhan R.S.,Indian Institute of Sugarcane Research | Kumar R.,U P Council of Agricultural Research | Patnaik J.R.,Odisha University of Agriculture and Technology
Sugar Tech | Year: 2016

In India, the ratoon cane productivity at national level stands at 58 t/ha against 85 t/ha for plant cane. Ratooning is a practice of growing full crop of sugarcane from sprouts of underground stubble buds left in the field after harvest of the plant (main) crop. In sugarcane farming, ratooning saves the cost of seedbed preparation, seed material and planting operations. Ratoons help in extending the crushing period of sugar mills as they mature earlier than the plant crop. However, most often, ratoon crop yields are lower than the plant crop. The major cause of low ratoon cane productivity in north-west Indian subtropics is the prevalence of severe winter conditions coinciding with harvesting of early-maturing high sugar varieties which inhibit the sprouting of subterranean stubble buds. Unsprouted stubble buds cause gaps in subsequent sugarcane (Saccharum sp Hybrid) ratoon crop resulting in lower initial plant stand and poor crop yield. Several agro-techniques viz., trash mulching, polyethylene mulching and intercropping have been applied to enhance the bud sprouting in winter-initiated ratoon, but all the efforts could not produce the desired results. To address these constraints, a field experiment was conducted during 2009–2010 and 2010–2011 for three consecutive seasons at the Indian Institute of Sugarcane Research, Lucknow, India, to assess the effect of cultural package practices and organic and/or inorganic sources of additions on yield and quality of winter-initiated ratoon in Indian subtropics. Results thus showed that application of sulphitation press mud cake (SPMC) at 20 t/ha or SPMC at 10 t/ha + 25 kg zinc sulphate improved the bud sprouting and significantly produced maximum number of shoots. Significant increase in the number of millable canes was noticed with the application of SPMC at 20 t/ha (103.1 thousand/ha) and SPMC 10 t/ha + 25 kg ZnSO4 (102.1 thousand/ha). Maximum cane yield (71 t/ha) was also recorded with the application of SPMC at 20 t/ha followed by SPMC at 10 t/ha + 25 kg ZnSO4 (69.3 t/ha). Thus, it clearly suggests that productivity of winter-initiated ratoon can be enhanced through the application of SPMC at 20 t/ha or SPMC 10 t/ha + 25 kg ZnSO4/ha since these applications at the time of ratoon initiation enhanced the ratoon cane yield by 16.34 and 14.29 %, respectively, than that of conventional package of practices for ratoon initiation in subtropical climatic conditions of India. Juice quality of ratoon cane was remained unchanged. © 2016 Society for Sugar Research & Promotion Source

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