Laser Guided Land Leveler: Precession Leveler With Laser Technology for Land Preparation

摘要

Unevenness of fields leads to inefficient use of irrigation water and also delays tillage, crop establishment and uneven maturing of crops, which in turn reduces the yield, grain quality and farm income. Hence, a precisely levelled field is a pre-requisite for an efficient surface irrigation system. The accuracy of leveling depends on skill and the judgment of the operator. But, in the laser system, the leveling of land is done precisely with the automatic functioning of the laser-operated scraper. So, the presr ent study was conducted to find the feasibility of tractor operated laser guided land leveller. The study was carried out in the Research farms of Tamil Nadu Agricultural University, Coimbatore. A comparative evaluation of the laser guided land leveler with the existing system of leveling showed that the percentage reduction in standard deviation of reduced levels for before and after leveling was 92.55 % for laser level-rning. For the conventional method, it was observed as 72.34 %, which was 20 % lower then the laser leveling. From contour charts, it was observed that considerably higher accuracy of grading was obtained when the fields were graded by use of laser leveler. The field capacity of the laser leveler and cost of operation were 0.08 ha/h and Rs 474/ h and 0.098 ha/h and Rs 309/h for conventional leveler, respectively. The cost of leveling per hectare using laser leveler was 5,932.50 Rs/ ha and 3,151 Rs/ha for conventional levelling.