Fabrication and evaluation of a reservoir tillage machine to reduce runoff from farms with sprinkler irrigation systems

Document Type : Research Article

Author

• M. A. Rostami

Agricultural Engineering Research Department, Kerman Agricultural and Natural Resource Research and Education Center, AREEO, Kerman, Iran

https://doi.org/10.22067/jam.v6i2.38691

Abstract

Introduction
Nowadays, in a lot of farm land due to reasons such as high density, heavy textured soils, steep terrain and a large body of water at each irrigation, rapid and complete absorption of water in the soil does not happen and runoff will be accrued. Improvement of infiltration reduces runoff and thus increases available water capacity. The main methods used to increase the infiltration area: The use of soil amendments, soil management by tillage and conservation farming. These methods may be used separately or together. Reservoir tillage is the process by which small holes or depressions are punched in the soil to prevent runoff of water from irrigation or rainfall. The objective of this study was to develop and evaluate a new reservoir tillage machine for runoff control in the fields.
Materials and Methods
Fabricated machine has four main units include three-point hitch, toolbar, frame and tillage unit. Tillage unit was a spider wheel with 6 arms that has 6 Wedge-shaped blades, mounted on them. Each tillage unit mounted on a frame and the frame is attached to the toolbar with a yoke. The toolbar was attached to the tractor by three-point hitch. The movement of tractor caused blades impact soil and spider wheel was rotating. Spider wheel rotation speed was depended on the forward speed of the tractor. Blades were created mini-reservoirs on the soil surface for "In situ" irrigation water or rainwater harvesting. Theoretically distance between basins, created by reservoir tillage machine, fabricated in this study was 57 and 68 cm for Arm's length of 30 and 40 cm respectively.
For the construction of machine, first the plan was drawn with SolidWorks software and then the parts of the machine were built based on technical drawings. First tillage unit was constructed and its shaft was based in two bearings. Six of the arms were positioned at 60 degrees from each other around tillage units and connected by welding. For evaluation of machine performance, two factors contain of machine speed (in three levels of 5, 7.5 and 10 km h-1) and Arm's length (in two levels of 30 and 40 cm) were evaluated. The machine was evaluated based on a completely randomized block factorial design with three replications. Effects of these factors on depth, distance and volume of basins and runoff were evaluated.
Results and Discussion
Mean comparisons of depth, distance and size of reservoirs in different machine forward speed and different Arm's length are summarized in Table 1 and 2. The results showed that the effect of arm length and forward speed on changes in the depth and volume of the reservoirs were significant at the probability level of one percent but changes of the distance between the reservoirs was only affected by Arm's length. The results also showed that increasing the forward speed from 5 to 10 km h-1 and increase the Arm's length from 30 to 40 cm increased depth, distance and volume of reservoirs. Reservoir tillage practices were control runoff in all plots.
Conclusions
In this research project, a reservoir tillage machine was built and assessed. Tillage unit of this machine is similar to the spider wheel. By this machine the small holes generated in the ground periodically. For evaluation of machine performance, effect of two factors, including machine speed and arm's length on depth, distance and volume of the basins were evaluated. The results showed that increasing the ground speed from 5 to 10 km h-1 and increase the arm's length from 30 to 40 cm increased depth, distance and volume of reservoirs. Reservoir tillage practices were controlled runoff in all plots.

Keywords

• Reservoir tillage
• runoff
• Sprinkler irrigation

20.1001.1.22286829.1395.6.2.4.4

Main Subjects

• Design and Construction

References

1. Agricultural Engineering and Development Company. 2006. Innovators of the implanted reservoir tillage system. Available from http://dammerdiker.com. Accessed 15 November 2013.

2. Alavi, S. A. 1999. The Encyclopedia of Agricultural Science. Agricultural Ministry Publication. 784 page. (In Farsi).

3. Alberta Farm Machinery Research Center. 2006. Multi Dike. Available from http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/eng3152. Accessed 20 November 2013.

4. American Society of Agricultural Engineering. 1994. Three-Point Free-Link Attachment for Hitching Implements to Agricultural Wheel Tractors. Page 133-135 in ASAE standards. 32d ed. St. Joseph, Michigan.

5. American Rainwater Catchment Systems Association. 2004. Furrow Dikes Maximize Irrigation and Rainfall Benefits. Available from http://www.arcsa-usa.org/documents/2004_02 _furrow _dike article.pdf. Accessed 20 November 2013.

6. ASTM. 1990. Standard test method for Field measurement of infiltration rate using a double-ring infiltrometer with a sealed inner ring. Available from: http://homepages.cae.wisc.edu/~wang1/ Fieldlist.html. Accessed 25 November 2013.

7. Carver, K., and A.Wayne Wyatt. 2005. Furrow dikes small reservoirs of yield potential. Available from http://www.hpwd.com/conservation. Accessed 20 November 2013.

8. Efunda. 2014. Compression spring designer. Available from: http://www.efunda.com/designstandards/ springs/calc_comp_ designer.cfm. Accessed 2 June 2013.

9. Hackwell, S. G., E. W. Rochester, K. H. Yoo, E. C. Burt, and G. E. Monroe. 1991. Impact of reservoir tillage on water intake and soil erosion. Transaction of the ASAE 34 (2): 436-442.

10. Haluschak, P., C. McKenzie, and K. Panchuk. 2003. Commercial potato production. The Guide to Commercial potato production on the Canadian Prairies. Available from: http://gov.mb.Ca/agriculture/crops/potatoes/bda04s04-3-4.html/. Accessed 15 December, 2013.

11. Hansen, H., and W. Trimmer. 1997. Runoff control strategies, PNW 287. Oregon state university. Available from: http://extension.oregonstate.edu/catalog/html/pnw/pnw287. Acceced 16 December, 2013.

12. Hendrickson, P. and M. Swanson. 2002. Evaluate the effects of planting configuration and cover crops on the grade and yield of teton onion. Available from: http://www.ag.ndsu.nodak.edu/carringt/agronomy/ Research/Misc/Onion% 20Planting%20Configuration-2002.pdf. Accesed 16 December 2013.

13. Hobson, J. H., L. Jensen, K. Langley, C. Shock, T. Stieber, M. Thornton, and T. Jensen. 2002. Mechanical straw mulching and reservoir tillage effects on shepody potatoes in the treasure valley. Available from: http://www.cropinfo.net/AnnualReports/Old/mechmulchpot1993.html/. Accessed 15 December, 2013.

14. Howell, T. A., A. D. Schneider, and D. A. Dusek. 2002. Effect of furrow diking on corn response to limited and full sprinkler irrigation. Soil Science Society American Journal 66: 222-227.

15. Karimi, M. 2003. Study on runoff in center-pivot irrigation system by using two impact sprinkler and boom with sprayer. Agricultural Engineering Research Institute Publication, Karaj, Iran. Final report of research report No. 262. (In Farsi).

16. Ordie, R. Jones, and R. Louis Baumhardt. 2003. Furrow dikes. Encyclopedia of water science. DOI. 10. 108/ E- EWS- 1200 10226.

17. Patrick, C., C. Kechavarzi, I. T. James, M. O'Dogherty, and R. J. Godwin. 2007. Developing reservoir tillage technology for semi-arid environments. Journal of Soil Use and Management 23 (2): 1185-1191.

18. Shigley, J. E., and L. D. Mitchell. 1986. Mechanical Engineering Design. Mcgraw-Hill Book Company.