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Bhubaneshwar, India

Samant T.K.,Krishi Vigyan Kendra | Mishra K.N.,OUAT
Indian Journal of Agricultural Research

The post- emergence application of quizalofop ethyl at 1.0 kg ha-1 at 15 DAS with one hand weeding at 25 DAS was the most effective and economical for controlling the grassy weeds in groundnut with maximum pod yield and haulm yield of 22.6 q ha-1 and 20.46 q ha-1, respectively. This treatment also minimized nitrogen, phosphorus and potash removal by weeds to a tune of 91.2, 84.1 and 89.7%, respectively over that of weedy check, resulting in better nutrient uptake by the crop. The maximum dry weed biomass at harvest was 250.3 g m-2 in weedy check followed by quizalofop ethyl at 0.75 kg ha-1 at 25 DAS. The weed control efficiency was highest (72.3 %) in application of quizalofop ethyl @1.0 kg ha-1 with one hand weeding, which gave maximum benefit- cost ratio of 2.49 and net return of Rs.53067 ha-1 with additional income of Rs.36534 ha-1 over weedy check. Source

Sahoo S.,KIIT University | Mohanty S.,OUAT | Sahoo T.,OEC
Souvenir of the 2014 IEEE International Advance Computing Conference, IACC 2014

This paper introduces a method of preference analysis based on electroencephalogram (EEG) analysis of prefrontal cortex activity. The proposed method applies the relationship between EEG activity and the Egogram. The EEG senses a single point and records readings by means of a dry-type sensor and a number of electrodes. The EEG analysis adapts the feature mining and the clustering on EEG patterns using a self-organizing map (SOM). EEG activity of the prefrontal cortex displays individual difference. To take the individual difference into account, we construct a feature vector for input modality of the SOM. The input vector for the SOM consists of the extracted EEG feature vector and a human character vector, which is the human character quantified through the ego analysis using psychological testing. In preprocessing, we extract the EEG feature vector by calculating the time average on each frequency band: θ, low- β, and high- β. To prove the effectiveness of the proposed method, we perform experiments using real EEG data. These results show that the accuracy rate of the EEG pattern classification is higher than it was before improvement of the input vector. © 2014 IEEE. Source

Bhukta D.,Siksha O' Anusandhan University | Dash G.C.,Siksha O' Anusandhan University | Mishra S.R.,Siksha O' Anusandhan University | Baag S.,OUAT
Ain Shams Engineering Journal

Dissipative effect on magnetohydrodynamic (MHD) mixed convective unsteady flow of an electrically conducting fluid over a stretching sheet embedded in a porous medium subject to transverse magnetic field in the presence of non-uniform heat source/sink has been investigated in this paper. The method of solution involves similarity transformation. The coupled nonlinear partial differential equations governing flow, heat and mass transfer phenomena are reduced into set of nonlinear ordinary differential equations. The transformed equations are solved numerically by using Runge-Kutta fourth order method associated with shooting technique. The numerical computation of skin friction, Nusselt number and Sherwood number is presented in tables. The work of previous authors is compared with the present work as particular cases in the absence of unsteady parameter, solutal buoyancy, Darcy dissipation and chemical reaction. The results of steady and unsteady cases are also discussed. The important findings are as follows: effect of electric field enhances the skin friction contributing to flow instability. Higher Prandtl number is suitable for the reduction of coefficient of skin friction which is desirable. © 2015 Faculty of Engineering, Ain Shams University. Source

Pradhan A.K.,BCKV | Beura K.,B.A.U | Das I.,OUAT | De N.,BHU
Ecology, Environment and Conservation

Cadmium (Cd) is a highly toxic heavy metal and therefore represents a potential threat to the environment and human health. A study has been carried out to evaluate the sorption and kinetics of Cadmium in various types of vermicompost. The experiment was conducted on six different types of vermicompost at Institute of Agricultural Sciences of Banaras Hindu University. Six vermicompost bins/units were developed for decomposition of a few selected base materials like, temple wastes, vegetable crop residues, grass residues, dry mango leaf litter, regular farmyard manure and Cow dung. The study concludes that vermicompost is an effective adsorbent for the removal of Cd (II) metal ions from its aqueous solution. Vermicompost is able to adsorb nearly 80-99% of the cadmium in solution at variable concentrations. Vermicompost can thus be recommended for application to the soil for removal of Cadmium, and owing to its good nutrient composition it would prove helpful in improving the physical and chemical properties of the soil. Copyright © EM International. Source

Farming system research is a multi-disciplinary holistic approach to solve the problems of small and marginal farms. Small and marginal farmers are the core of the Indian rural economy constituting 80% of the total farming community but possessing only 36% of the total operational land. The declining trend of per caput land availability poses a serious challenge to the sustainability and profitability of farming. Under such conditions, it is appropriate to integrate land-based enterprises, viz. dairy, fishery, poultry, duckery, apiary, field and horticultural crops within the farm, with the objective of generating adequate income and employment for these small and marginal farmers and thereby improved livelihoods. The production system adopted during Green Revolution has been explorative and the natural resources like soil and water were subjected to immense pressure beyond carrying capacity. As a result sustainability of agricultural production system and the farming system is in crises. This suggests the urgent need of integrated farming system development where the various components of the farming system may be integrated to improve productivity and profitability as well as resource conservation along with maintenance of the environment. Rice (Oryza sativa L.) occupies a position of overwhelming importance in Asian agriculture and it constitutes the bulk of the Asian diet. For many people in the poor countries, rice is the main source of energy, and it plays an important role in providing livelihood to the Asian population. It is largely grown in Asia (90% area) under diverse conditions of soil, climate, hydrology and topography. Rice farming is the single most important source of employment and income for the majority of rural people in these regions. Among the various farming system options in rice ecologies, rice - fish farming has great potential particularly in eastern India in view of the resources, food habits and other socio-economic conditions. Rice-fish diversified farming system with the integration of compatible components, such as improved varieties of rice, fish, prawn, pulses, oilseeds, horticultural crops, agroforestry, mushroom, poultry, duckery, goatery, floriculture, apiculture etc. can increase the farm productivity, besides farm employment over traditional rice farming. There exist chain of interactions and flow of resources among the different enterprises in a integrated farming system. To make farming profitable and improve resource use efficiency at the farm level, the synergy among interacting components of farming system needs to be exploited. In this paper focus is on different aspect of rice-based farming system involving methodology, determinants, and forms of rice-based farming systems and their impact on livelihood of farming communities. Source

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