PM—Power and Machinery

Chaudhuri, D.

doi:10.1006/jaer.2000.0688

Cited by 37 publications

(3 citation statements)

References 27 publications

(9 reference statements)

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“…In soil bin conditions, Kushwaha et al [34] also observed the raise in draft force with depth for disc-type (smooth, notched, and serrated) furrow openers. Chaudhuri [24] analyzed different seed openers and found that with increasing operating depth, draft force on tillage tools also increases. The draft force results are in agreement with Bianchini and Magalhães [6] who reported that horizontal draft forces ranged from 0.94 to 1.36 kN for smooth-type, 0.32 to 0.5 kN for toothed-type, and 0.6 to 0.78 kN for notched-type single disc furrow openers, when cutting sugarcane residue at 80 mm and 100 mm operating depths, respectively.…”

Section: 1draft Force (Fh) Requirement Of Furrow Openersmentioning

confidence: 99%

Comparative Performance of Various Disc-Type Furrow Openers in No-Till Paddy Field Conditions

et al. 2017

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Different furrow openers are required to be evaluated for their suitability to manage rice straw for direct planting of wheat in paddy fields. This study was carried out to assess the straw-cutting ability and draft requirements of four different disc-type furrow openers (notched, toothed, smooth-edge single disc, and double disc) in no-till paddy fields. The openers were attached to an in-field traction rig equipped with S-type load cells, and tested using three operating depths of 30, 60, and 90 mm, and three traveling speeds of 0.1, 0.2, and 0.3 m s −1. Vertical and horizontal forces acting on the openers were observed using LabVIEW software based data acquisition system. The results of this study indicated that the furrow opener type, operating depth, and speed significantly influenced the horizontal and vertical forces, as well as straw-cutting ability of the furrow openers. The highest draft and vertical force were noted for double disc-type furrow openers. The mean straw-cutting efficiency of notched, toothed, and smooth-edge single disc and double disc furrow openers were 12.4, 46.2, 11.4, and 78.5%, respectively. The double disc furrow opener (DD) produced the lowest level of hair-pinned straw and had the highest straw-cutting efficiency with a value of 88.6% at 90 mm operating depth, and therefore had the best performance in comparison with other furrow openers.

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Section: 1draft Force (Fh) Requirement Of Furrow Openersmentioning

confidence: 99%

Comparative Performance of Various Disc-Type Furrow Openers in No-Till Paddy Field Conditions

et al. 2017

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“…Such outline can ensure efficient vertical and horizontal separation between seed and fertilizer. Mini disks were assembled with the rake angle of 25° in order to eliminate negative suction of disk implement for penetrating into the soil, because researchers found (Damora and Pandey, 1995) the furrow openers have lower draft at smaller width and wedge and a rake angle of 40° or less. Also it has been proved that tendency to penetrate into the soil would be maximize if the rake angle of tool be about 23 (Godwin, 2007).…”

Section: Methodsmentioning

confidence: 99%

“…The common furrow openers used for conventional tillage are different from those used for no-tillage. Common types of furrow openers used for minimum and no-tillage systems are hoe, chisel, winged chisel, inverted T and disk furrow openers (Chaudhuri, 2001). There is comprehensive literature about the evaluation of commercially used openers at different situations, but as has been mentioned in reference number (Chaudhuri, 2001), most of the current works on the design performance of furrow openers has been devoted to study the horizontal and vertical forces acting upon them as a function of rake angle, forward speed, depth and width of the coulter.…”

Section: Introductionmentioning

confidence: 99%

Effects of Novel Disk-type Furrow Opener Used in No-Tillage System on Micro Environment of Seed

Seidi¹,

Abdollahpour²,

Javadi³

et al. 2010

American Journal of Agricultural and Biological Sciences

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Problem statement: Offset Double-Disk Opener (DDO) is a popular furrow opener in conservation tillage. It has some limitations such as negative suction to penetrate in the soil, hair pinning and mixing seed and fertilizer in the slot. Because of importance of separation of seed and fertilizer in the slot, by adding two horizontal mini disks to DDO a modified opener was made (MDO) which placed the fertilizer between and under two rows of seed. Approach: To consider performance of novel opener an indoor comparison test between DDO and MDO was performed at soil bin. The experiment was conducted with three working speeds (3, 6 and 8 km h^-1), two bulk densities of soil (1.1 and 1.4 Mg m^-3) and two levels of residues (1 and 2 ton ha^-1). The experimental design consisted in a (3×2×2) complete randomized factorial with three replicates for each test. Moisture of seed furrow, separation of seed and fertilizer, hair pinning and resultant forces acting on the openers were used as assessing indexes. Results: There was no significant difference between soil moisture content in slots created by DDO and MDO at 0-4 cm depth, but at 4-8 cm the in the slot created by MDO moisture content was higher about 9%. Horizontal force for both openers increased with increasing speed and soil bulk density. Vertical force for DDO was negative so it needed additional weight for penetrating in the soil, but vertical force for MDO was positive and, which can solve the challenge of penetration in the soil in DDO. In soft soil with heavy residues some trash was pushed by DDO into seed furrow (hair pinning) but at MDO seed were placed at clean groove. Lateral and vertical separation of seed and fertilizer was performed effectively by MDO (4.5 and 5 cm, respectively) while DDO put seed and fertilizer close to each other. Conclusion: Overall, the Modified Offset Double-disks (MDO) had better performance. So by adapting this opener with no-tillage drillers it would possible to have higher yield in conservation tillage where the most appropriate opener is disk type

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Effect of Furrow Opener Design, Furrow Depth, Operating Speed on Soil Characteristics, Draft and Germination of Sugarcane

2016

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PM—Power and Machinery

Cited by 37 publications

References 27 publications

Comparative Performance of Various Disc-Type Furrow Openers in No-Till Paddy Field Conditions

Comparative Performance of Various Disc-Type Furrow Openers in No-Till Paddy Field Conditions

Effects of Novel Disk-type Furrow Opener Used in No-Tillage System on Micro Environment of Seed

Effect of Furrow Opener Design, Furrow Depth, Operating Speed on Soil Characteristics, Draft and Germination of Sugarcane

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