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WELCOME. Precision Laser leveling in Agriculture Engineering- a case study. Presentation by Dr. B. ANURAJA. INDIAN AGRICULTURE. It is gamble with monsoon Precision farming is the need of the hour precise land development and scientific irrigation methods

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  1. WELCOME

  2. Precision Laser leveling in Agriculture Engineering- a case study Presentation by Dr. B. ANURAJA

  3. INDIAN AGRICULTURE • It is gamble with monsoon • Precision farming is the need of the hour • precise land development and scientific irrigation methods • Studies have indicated that a significant (20-25%) amount of irrigation water is lost during its application at the farm due to poor farm design and unevenness of the field [Cook and Peikert, 1960]

  4. Land Leveling • Land leveling saves irrigation water and facilitates field operation, mechanization of various field operations and increases yield [Rickman, 2002] • The laser leveling technique is of quite recent origin Er. P.S. Kanannavar, 12-12-2009

  5. Civil engineering projects but very rare usage is found in farmers’ field. To bridge a gap in usage of this technology in agriculture research was felt necessary. No study was available for this new technology in this part. • Hence, the present study to find the feasibility of a Tractor operated laser guided land leveler was carried out in the research farms of University

  6. In this study comparative evaluation of the laser guided land leveler with the existing system of leveling was made.

  7. Why Land Leveling? • Land looks leveled though, wide topographic variation exists • Wide variability in crop yields at field/ village/ block/ district/ regional level • Better distribution of water • Water saving • Improvement in nutrient use efficiencies • Option for Precision Farming • Higher crop productivity

  8. Laser Land Leveling: Benefits • Precise level and smoother soil surface • Reduction in time and water required to irrigate the field • Uniform distribution of water in the field • Uniform moisture environment for crops • Good germination and growth of crops • Less seed rate, fertilizer, chemicals and fuel requirements • Improved field trafficability (for subsequent operations)

  9. Complete Laser unit • The laser-controlled system consisted of • (i) Laser transmitter with a tripod • (ii) Laser eye-receiver • (iii) Laser plane receiver • (iv) Control box • (v) Twin solenoid hydraulic control valve • (vi) Drag scrapper (Bucket)

  10. How it works? Laser eye-receiver Laser transmitter with a tripod Stand Laser plane receiver Control box Twin solenoid hydraulic control valve Drag scrapper (Bucket) v

  11. Advanced Techniques What is Laser Leveling? • Introduced in 1970s but New to Karnataka? • Leveling the field within certain degree of desired slope using a guided laser beam through out the field.

  12. Methodology Contour survey of unlevelled fields Ploughing and pulverising the fields Leveling the fields with laser and without laser technology Contour survey of Levelled fields Contour survey of Levelled fields Fig. Flow chart of methodology followed in the present study

  13. View of field before leveling.

  14. Laser transmitter on tripod

  15. View of Laser transmitter

  16. View of Laser eye receiver

  17. View of control box

  18. View of Hydraulic control system

  19. Operational View of Laser leveler

  20. View of field after laser leveling

  21. View of field after Conventional leveling Er. P.S. Kanannavar, 12-12-2009

  22. Table 1. Particulars of the selected fields

  23. Pivot round leveling Freeform operation to high point Fig. 6: Tractor operating methods for land leveling

  24. Table-1: Surveyed readings (reduced levels in meters) for the field no.1 before and after laser leveling.

  25. Table-2: Surveyed readings (reduced levels in meters) for the field no.2 before and after Conventional leveling.

  26. Table- 3: Standard deviation of Surveyed readings.

  27. Standard deviation of Surveyed readings .

  28. The contour maps for before leveling the field using laser leveler and conventional methods

  29. The contour maps for after leveling the field using laser leveler and conventional methods

  30. CONCLUSIONS • 1. It was observed from contour charts and from values of standard deviation of reduced levels that considerably higher accuracy of grading were observed when the fields were graded by use of laser guided land leveler in comparison to using the leveler without laser systems. • 2.The field capacity of the laser leveler was observed as 0.072 ha/h whereas, without using the laser system, the field capacity of the leveler was 0.104 ha/h. Er. P.S. Kanannavar, 12-12-2009

  31. 3.The cost of grading was considerably higher when the laser-guided land was used to grading in comparison to using the leveler without laser system. The cost of operation of the laser guided land leveler was Rs.781/h as compared to Rs 617/h for the conventional leveler. The cost of operation was 27 % costlier in case of laser guided land leveler as compared to the conventional leveler. • 4.The cost of leveling per hectare using laser leveler is 10843 Rs/ha whereas it was 5913 Rs/ha for conventional leveling. Er. P.S. Kanannavar, 12-12-2009

  32. COST of OPERATION • Cost of levelling using conventional i.e laser leveller in Manual mode =Rs 5913/ha • Field capacity=0.6/5.75=0.104 ha/h • Cost of levelling using laser leveller =Rs 10843/ha • Field capacity=0.6/8.33=0.072 ha/h

  33. Thank you Er. P.S. Kanannavar, 12-12-2009

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