Design, construction and evaluation of the automatics position control system of tillage tools

Document Type : Research Paper

Authors

1 Former Graduated Student, Ferdowsi University of Mashhad

2 Associate Professor Ferdowsi University of Mashhad

3 Ferdowsi University of Mashhad

Abstract

The new device made in this study could calculate the proper position of tillage tools relative to the land surface at each point, and hydraulic operator set its optimum position. The optimum position of tools is calculated by depth control software developed for this device, and its input data were depth for root development. The performance of device was tested on subsoiler for precision tillage operation. The accuracy of applying the desired depth was studied in laboratory and also agricultural land. Factors considered in the laboratory were type of depth changing (increasing or decreasing) and seven steps of depth changing in the range of 0 to 350 mm with 50 mm interval. In the field test, in addition to the above mentioned factors, gear changing was also considered (gear 1, 2, 3 of Massey Ferguson Tractor). Precision deficiency for laboratory test was 3.3 percent for increasing and 3.83 percent for decreasing of depth. The precision deficiency in agricultural land was 4.19 percent for gear one, 5.19 percent for gear two and 5.78 percent for gear three. Eventually, this amount for decreasing of depth was 6.84 percent for gear one, 4.67 percent for gear two and 6.14 percent for gear three.

Keywords

Main Subjects

References

Javadi, A., Shahidzadeh, M.(2005). The effect of combined moldboard plow to break plow pan. Journal of Agricultural Engineering Research, 6 (24): 95-110.(In Farsi).
Gahari, M., Hemmat, A., Afzal, A.(2010). Design, construction and evaluation of a tillage tool with variable depth equipped with GPS. Biosystems Engineering of Iran, 41(1):1-9. (In Farsi).
 Hernández.J.A., Mulla.D.J. Homepage University of Minnesota. Introduction to Precision Agriculture.http://www.soils.umn.edu/academics/classes/soil4111/,Visited: 2009/08/05
Tafangenyasha, C., Mthembu, A.T., Chikoore, H., Ndimande, N., Xulu, S., and Gcwensa, N. (2011). The effects of soil density on the vegetation of the Umfolozi catchment in South Africa. Journal of Soil Science and Environmental Management  2 (1): 14-24.
Gorucu, S., Khalilian.A., Han.Y.j., and Dodd.,R.,B .(2011). Variable depth tillage based on geo-referenced soil compaction data in coastal plain. International Journal of Applied Science and Technology 2(1): 22-32.
Raper, R. L., Reeves, D.W., Shaw, J.N., Vansanten, E., and Mask, P.L. (2007). Benefits of site-specific subsoiling for cotton production in Coastal Plain soils. Soil and Tillage Research 96: 174-181.
Iranian Journal of Biosystems Engineering
Volume 46, Issue 2 - Serial Number 2
August 2015
Pages 117-123

Files

History

  • Receive Date: 29 September 2013
  • Revise Date: 23 November 2014
  • Accept Date: 22 February 2015

Share

How to cite

Statistics