TILLAGE TOOLS DRAUGHT IN SANDY LOAM SOILS, AT AL-QASSIM ARID AREA (Part II). | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 1, Volume 27, Issue 6, June 2002, Pages 4115-4130 PDF (4.39 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2002.255133 | ||
| Author | ||
| E.B. Elbanna* | ||
| Fac. of Agric. And Veter., King Saud Univ., (AJ-Qassim), Saudi Arabia | ||
| Abstract | ||
| Using cone index as indication of soil strength, empirical equations are developed in accordance with soil mechanics theory to relate soil strength or properties to tillage tools draught. A common five tillage tools in Saudi Arabia were tested on sandy loam soils arid their empirical draught equations are developed. Chisel, moulldbaord,:and field cultivator equations comprise a quasi-static component dependent on cone index and a dynal"(1ic component function of specific weight, operating speed. 'While, for disk plough and. tandem disk harrow, the draught equation compromises three components, nameddepth, operation and penetration dependent on tillage depth, speed .and soil penetration resistance. The cone index equation provides a method of predicting tillage draught directly from soil properties and operational parameters. the object of t~is research was to relate tillage draught to soil strength and operational parameters in sandy loam soils, at AI-Qassim arid area, 'Saudi Arabia. ' | ||
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