THE EFFECT OF ASPECT RATIO (D/W) OF NARROW TILLAGE TOOLS ON DRAFT, SOIL DISTURBED AREA AND SOIL LOOSENING EFFICIENCY

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

LOGHAVI M.; AZIZI ALIABADI H.

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Water and Soil Year:2008 | Volume:22 | Issue:2 Page(s): 36-47

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

1,088

Download:

Cites:

Information Journal Paper

Title

THE EFFECT OF ASPECT RATIO (D/W) OF NARROW TILLAGE TOOLS ON DRAFT, SOIL DISTURBED AREA AND SOIL LOOSENING EFFICIENCY

Author(s)

LOGHAVI M. | AZIZI ALIABADI H. | Issue Writer Certificate

Keywords

NARROW TILLAGE TOOLSQ3

DRAFTQ3

SOIL DISTURBED AREAQ3

SOIL LOOSENINGQ3

CRITICAL DEPTHQ2

ASPECT RATIOQ2

Abstract

Narrow tines are among the most important tillage tools, which are used in chisel plows, cultivators and subsoilers. The DRAFT of these blades is highly dependent on their geometric shape and working depth. The most important geometric specifications of these blades are their ASPECT RATIO (depth/width ratio) and rake angle. Researchers’ efforts have been aimed at minimizing energy consumption and maximizing soil-loosening efficiency in using these types of blades. The objective of conducting this research was to investigate the effect of narrow tine ASPECT RATIO on DRAFT force; SOIL DISTURBED AREA and loosening efficiency. The tests were conducted in the soil-bin facilities of the Agricultural Machinery Department at Shiraz University. The experiment was conducted using a complete randomized block design with factorial arrangement in three replications. The tools had the same rake angle (30 degree) with four ASPECT RATIOs (2, 3, 4 and 5) and three blade widths (2.5, 5 and 7.5 cm). DRAFT force was measured by a recording load cell, and the soil-disturbed area was measured by using a profilemeter and developed by using Curve Expert and Matlab Ver. 5.6 softwares. The SOIL LOOSENING efficiency was calculated by dividing the SOIL DISTURBED AREA by the DRAFT force. The results showed that the effect of ASPECT RATIO (d/w) on DRAFT force was highly significant (p<0.01). The highest DRAFT force for all blades was obtained at the ASPECT RATIO of 5. The interactive effect of blade width and ASPECT RATIO on DRAFT force variations was also significant. The mean DRAFT force at similar ASPECT RATIOs increased as the tool width was increased. The results also showed that the effect of blade ASPECT RATIO on soil-disturbed area was highly significant. The soil-disturbed area increased with increasing the ASPECT RATIO. The interactive effect of blade width and its ASPECT RATIO on soil-disturbed area was significant, indicating that the effect of ASPECT RATIO on soil-disturbed area depended on blade width. At similar ASPECT RATIO, the disturbed area increased with increasing the blade width. In addition, the effect of ASPECT RATIO on SOIL LOOSENING efficiency was highly significant (p<0.01). The 7.5 cm wide blade had the highest efficiency at the ASPECT RATIO of three, while for the 5 cm and 2.5 cm wide blades the highest efficiency was achieved at ASPECT RATIOs of 4 and 5, respectively. The highest and the lowest loosening efficiencies were obtained at ASPECT RATIOs of 3 and 2, respectively. Therefore, it is suggested that the NARROW TILLAGE TOOLS be used at ASPECT RATIO of 3 or higher. Statistical analysis showed significant interactive effect of ASPECT RATIO and blade width (p<0.01) on SOIL LOOSENING efficiency. SOIL LOOSENING efficiency had the highest and the lowest values at blade widths of 7.5 cm and 2.5 cm, respectively, indicating that the SOIL LOOSENING efficiency was higher in wider blades.

Cites

No record.

References

No record.

Cite

APA: Copy

LOGHAVI, M., & AZIZI ALIABADI, H.. (2008). THE EFFECT OF ASPECT RATIO (D/W) OF NARROW TILLAGE TOOLS ON DRAFT, SOIL DISTURBED AREA AND SOIL LOOSENING EFFICIENCY. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 22(2), 36-47. SID. https://sid.ir/paper/141575/en

Vancouver: Copy

LOGHAVI M., AZIZI ALIABADI H.. THE EFFECT OF ASPECT RATIO (D/W) OF NARROW TILLAGE TOOLS ON DRAFT, SOIL DISTURBED AREA AND SOIL LOOSENING EFFICIENCY. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2008;22(2):36-47. Available from: https://sid.ir/paper/141575/en

IEEE: Copy

M. LOGHAVI, and H. AZIZI ALIABADI, “THE EFFECT OF ASPECT RATIO (D/W) OF NARROW TILLAGE TOOLS ON DRAFT, SOIL DISTURBED AREA AND SOIL LOOSENING EFFICIENCY,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 22, no. 2, pp. 36–47, 2008, [Online]. Available: https://sid.ir/paper/141575/en

Related Journal Papers