In the field and the extent of levelling required, however the accuracy of levelling depends on skill and the judgment of the operator. The amount of cut is controlled by the hydraulic system, controlled by the operator. The laser system is of quite recent origin. The levelling of land is done precisely with the automatic functioning of the laser-operated scraper. With the laser system the reference plane is generated above the ground with the help of a rotating transmitter. The tractor operator constantly receives the signals regarding high or low spots as well as on grade information on the...

This study aims to determine land use change and runoff using the USDA Soil Conservation Service curve number (SCS-CN) method for Chaka block, located at 24o 47'00"N to 25o 47'00"N North latitude and 81o 19'00"E to 82o 21'00"E longitude, situated at Allahabad district, Uttar Pradesh .Antecedent moisture content (AMC) was calculated by taking preceding five days rainfall which gave three conditions AMC I, AMC II and AMC III. Weighted Curve Number for the entire selected micro-watershed was calculated based on site information of the block and found to be 78 for AMC II. The CN values...