Soil loosening characteristics of a dual bent blade subsurface tillage implement

Salar, M.R.; Esehaghbeygi, Ali; Hemmat, Abbas

doi:10.1016/j.still.2013.07.005

Cited by 26 publications

(22 citation statements)

References 18 publications

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“…This may include (a) no-till management with cover crops (DeLaune et al 2012), (b) subsurface tillage practices (Salar et al 2013), (c) rotating tillage with no-till practices on farmland (Hou et al 2012), (d) use of crop straw and plastic mulching (Yuan et al 2014;Yin et al 2015), (e) adoption of relay planting configuration , and (f) adoption of ridge-furrow planting configurations (Gan et al 2013). Moreover, RDI can be combined with some modern irrigation techniques such as sprinkler irrigation (Bielorai 1982), surface drip irrigation (Du et al 2008a;Faci et al 2014), subsurface infiltration (DeLaune et al 2012), and in combination with root-zone nutrient management through fertigation (Chen et al 2011), to increase both water and nutrient use efficiencies.…”

Section: Opportunitiesmentioning

confidence: 99%

Regulated deficit irrigation for crop production under drought stress. A review

Chai

Gan

Zhao

et al. 2015

Agron. Sustain. Dev.

452

234

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Agriculture consumes more than two thirds of the total freshwater of the planet. This issue causes substantial conflict in freshwater allocation between agriculture and other economic sectors. Regulated deficit irrigation (RDI) is key technology because it helps to improve water use efficiency. Nonetheless, there is a lack of understanding of the mechanisms with which plants respond to RDI. In particular, little is known about how RDI might increase crop production while reducing the amount of irrigation water in real-world agriculture. In this review, we found that RDI is largely implemented through three approaches: (1) growth stage-based deficit irrigation, (2) partial root-zone irrigation, and (3) subsurface dripper irrigation. Among these, partial root-zone irrigation is the most popular and effective because many field crops and some woody crops can save irrigation water up to 20 to 30 % without or with a minimal impact on crop yield. Improved water use efficiency with RDI is mainly due to the following: (1) enhanced guard cell signal transduction network that decreases transpiration water loss, (2) optimized stomatal control that improves the photosynthesis to transpiration ratio, and (3) decreased evaporative surface areas with partial root-zone irrigation that reduces soil evaporation. The mechanisms involved in the plant response to RDI-induced water stress include the morphological traits, e.g., increased root to shoot ratio and improved nutrient uptake and recovery; physiological traits, e.g., stomatal closure, decreased leaf respiration, and maintained photosynthesis; and biochemical traits, e.g., increased signaling molecules and enhanced antioxidation enzymatic activity.

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Section: Opportunitiesmentioning

confidence: 99%

Regulated deficit irrigation for crop production under drought stress. A review

Chai

Gan

Zhao

et al. 2015

Agron. Sustain. Dev.

452

234

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“…A new winged chisel plough (WCP) was designed and built by a combination of the properties of the dual bent blade subsurface introduced by Salar et al (2013) and a chisel plough. It was designed in CATIA software (version V5R20).…”

Section: Development Of a New Winged Chisel Ploughmentioning

confidence: 99%

“…It was designed in CATIA software (version V5R20). Forward type wings were chosen because the soil fragmentation and disturbance area were more in the forward type compared to the backward type ones according to previous studies (Salar et al 2013;Askari et al 2016). Previous studies also revealed that the least amount of draught force occurred at the rake angle of 30 ° for chisel ploughs (McKyes and Maswaure 1997;Aluko and Seig 2000).…”

Section: Development Of a New Winged Chisel Ploughmentioning

confidence: 99%

“…In this research, the effective wing geometry was determined. The levels of the rake and bend angles of the tine were chosen based on the optimum angles of previous studies (Durairaj and Balasubramanian 1997;Majidi Iraj and Raoufat 1997;Esehaghbeygi et al 2005;Jafari et al 2008;Salar et al 2013). The independent variables were related to the wing as three depths (5, 10, and 15 cm from the soil surface), three bend angles (10, 20, and 30 °), and three rake angles (7.5, 15, and 22.5 °) which were tested in a soil bin.…”

Section: Development Of a New Winged Chisel Ploughmentioning

confidence: 99%

“…Previous studies have indicated that a bent leg plough is more energy efficient than a subsoiler and paraplough for both semi-deep and deep tillage operations. A great deal of research has been conducted on the bent leg plough and the effect of different operation parameters, like the soil properties, tillage depth and speed on the interaction between the soil and bent leg (Durairaj and Balasubramanian 1997;Jafari et al 2008Jafari et al , 2011Salar et al 2013;Askari et al 2016).…”

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confidence: 99%

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Forces and loosening characteristics of a new winged chisel plough

Salar¹,

Karparvarfard²,

Askari³

et al. 2021

Res. Agric. Eng.

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This study was devoted to verifying the performance of various configurations of a winged chisel plough (WCP) in a soil bin. The performance of the new tool was assessed at three wing depths (5, 10 and 15 cm), three bend angles (10, 20 and 30 °), and three rake angles (7.5, 15 and 22.5 °) with three replications using a completely randomised design at a constant depth and speed of 30 cm and 1 m·s–1, respectively. The draught and vertical forces, soil disturbed and upheaved areas plus the efficiency of the soil loosening were measured during the tests. The results revealed that the draught and vertical forces were significantly increased by increasing the wing depth, bend and rake angles. The soil disturbance area increased with an increase in the wing depth, bend and rake angles. While the soil upheaving was decreased by increasing the wing depth and bend angle, the effect of the rake angle on the soil upheaving area was not significant. The maximum efficiency of the soil loosening of 268.1 cm2·kN–1 was achieved for a wing depth of 10 cm, a bend angle of 20 °, and a rake angle of 15 °. A significant improvement in the efficiency of the soil loosening along with maintaining a considerable portion of the residue on the soil surface suggest that the WCP should be adopted for conservation tillage.

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Application of DEM on the Design and Performance Analysis of Bionic Subsoiler

Wang

Xia

et al. 2020

Engineering Applications of Computational Methods

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Soil loosening characteristics of a dual bent blade subsurface tillage implement

Cited by 26 publications

References 18 publications

Regulated deficit irrigation for crop production under drought stress. A review

Regulated deficit irrigation for crop production under drought stress. A review

Forces and loosening characteristics of a new winged chisel plough

Application of DEM on the Design and Performance Analysis of Bionic Subsoiler

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