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Development of alternative renewable liquid fuels have become now a days necessity for better economy of the country and saving the environment from further deterioration. The thrust for alternative renewable sources of liquid transport fuel is driven by factors like global warming and long term availability of fossil-based crude oil. The pressure of the increasing fuel prices, deteriorating global supplies of crude oil and legislation to control pollution has resulted in both for aggressive renewable fuel policies and a quick growth in the emerging bio-fuel industry. Also, on other hand...

The economic prosperity and quality of life in a region are closely linked to the level of its per capita energy consumption. In India more than 70% of the total population inhabits rural areas and their 85-90% of energy requirement is being met by bioresources. With dwindling resources, attention of planners is diverted to viable energy alternatives to meet the rural energy demand. Biogas as fuel is one such alternative, which can be obtained by anaerobic digestion of livestock waste, domestic and farm waste, abundantly available in the countryside. Livestock manure may play an increasing...

Rotary tillage implements are now being projected as important rotary tools that result in production of fine tilth soil however the rotavator being in line with the tractor at the back cannot be used in orchards due to the hindrance posed by narrow space between the trees. Hence there is need of some tillage tool in offset to the central line of tractor so that it can reach to the area under the tree with the tractor placed in between the rows. In the offset working condition (offset rotavator) the rotary tillage unit can easily reach the strip of soil under low trees and vegetation where...