Modern chemicals, in form of fertilizers and pesticides, have undoubtedly increased the food production worldwide. Over use of chemical application and its effect on environment and human health could not be neglected any further. Residual effect of agrochemicals could be seen in both the terrestrial life and marine life. Future food demand must be achieved with better quality food, along with use of less toxic chemicals. Alternate practices like introduction of GMOs, precision agriculture and IPM must be put into practice, to lessen the load of chemical use. This review evinces the health hazards caused due to misuse and over use of agrochemicals and also talks about the contributing factors, of which poor education and extension system plays pivotal role. Improving the literacy among the farmers, strengthening the extension, training and involvement of media could provide scope for reducing vulnerability of farmers to health related issues caused by prolong exposure to the toxic chemicals.
This paper presents the concept of Auto roll punching machine mainly carried out for production based industries. Industries are basically meant for Production of useful goods and services at low production cost, machinery cost and low inventory cost. Today in this world every task have been made quicker and fast due to technology advancement but this advancement also demands huge investments and expenditure, every industry desires to make high productivity rate maintaining the quality and standard of the product at low average cost, but still we are using a separate machines for separate operations.this is a time and power consuming process, it need maintenance as well as more space. Our project is to overcome above listed problems.In our project two operation are builted as a one machine tool i.e.punching and feeding of work materials In auto roll punching machine consists of two sections. One is automatic feeding mechanism and the second section is punching section .The first section consists of geneva wheel disc keyed with a shaft at one end and the other end is connected with chain sprocket wheel.This sprocket wheel transmits the rotary motion from the geneva wheel to the metal sheet feeding rollers through a chain drive.Hence, when the geneva wheel is rotated. So, the metal sheet also moved for punching operation.
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