Three-stage Subsoil Interval Mixing Plough for Improvement of Planosol

Yu, Zhonghe; Hu, Jia; Chunfeng, Zhang; Araya, Ken; Teramoto, Chinao; Liu, Feng; Zhu, Baoguo; Meng, Qingying; Wang, Nannan; Zhang, Maoming; Wu, Zhijie; Shi, Yunfeng; Li, Dongpo

doi:10.1016/s1881-8366(13)80008-0

Cited by 2 publications

(4 citation statements)

References 10 publications

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“…Soil moisture did not differ between profiles in the Ap horizon, but there was a difference in Btf (Figure 2B). Btf in P2 retained 7.3% more water than Ap; in P1, this difference was only 2.7% (Figure 2B), which is consistent with the increase of 2% observed by Yu et al (2013).…”

Section: Comparative Analysis Of Physical Attributessupporting

confidence: 85%

“…Depending on the depth of occurrence of the planic B, the clay increment can act as a water reservoir during the dry period; as a result, the roots are free of excess water, which would favor plant development in the semiarid region. Increases of approximately 2% in moisture were observed in Planosols when comparing the surface with the subsurface layers (Yu et al, 2013).…”

Section: Introductionmentioning

confidence: 94%

“…Extensive pasture and flooded rice are the most prominent uses (IUSS Working Group WRB, 2015). Limitations to plant roots in Planosols are attributed to lack of oxygen, densification, and low fertility (Himmelbauer et al, 2010;IUSS Working Group WRB, 2015;Yu et al, 2013;Meng et al, 2016;Bortoluzzi et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Potentialities and limitations of Planosols with distinct depths of diagnostic horizon

Vieira

Romero

Toma

et al. 2021

rcia

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There is a variation in the depth of subsurface horizon of Planosols in semi-arid region, which may influence the agricultural potential and affect food production. The general aim of this study was to identify potentialities and limitations of two Planosols as a function of subsurface horizon depth. The adjacent profiles P1 and P2 were studied in Pentecoste (Ceará, Brazil). Morphological, physical, and chemical analyses were done aiming at soil characterization. Soil bulk density (BD), porosity, and penetration resistance (PR) were analyzed in a completely randomized split-plot design with four replicates to compare P1 and P2 and the horizons Ap and Btf. Btf was found at 62cm depth in P1 and at 18 cm depth in P2. Indicatives of water saturation were more evident in P2. The profile P1 showed lower hardness and higher friability, as well as higher acidity in subsurface (pHH2O from 4.4 to 4.7) and higher aluminum content (1.2cmolc kg-1). Both profiles were eutrophic and showed low contents of organic carbon (1.5 to 8.5g kg-1) and phosphorus (0.9 to 3.9mg kg-1). The sodium percentage in CEC was 9.1% in P1 and 5.5% in P2. Water retention increases in Btf compared with Ap was 7.3% in P2 and 2.7% in P1. Both profiles showed increase in BD in Btf, reaching 1.7g cm-3, while PR was higher in P2 (1.5 MPa). There are potentialities and limitations common to both soil profiles, but P1 has more physical potentialities and more chemical limitations than P2.

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Section: Comparative Analysis Of Physical Attributessupporting

confidence: 85%

Section: Introductionmentioning

confidence: 94%

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Potentialities and limitations of Planosols with distinct depths of diagnostic horizon

Vieira

Romero

Toma

et al. 2021

rcia

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“…Because its working width was too narrow to increase the operation cost and produced too soft subsoil after mixing, it led to poor traffic capacity of vehicles under flooding conditions. With the emergence of the problem, the researchers gradually improved the device and installed an additional first plow body on the right side (TSIM, figure 3) [15][16], which could produce about 1 m working width and soft and hard alternating subsoil. For this paper, to obtain a much wider operating width (about two meters) and lower operating cost than the original TSIM, the 2013 TSIM was doubled and unified (hereafter, TSIMF, Three-stage subsoil interval mixing four-gang plough).…”

Section: Introductionmentioning

confidence: 99%

The Configuration of a New Three-Stage Subsoil Interval Mixing Four-Gang Plough for Improving Planosol

Zhu,

Kuang,

Zhang

et al. 2023

Advances in Transdisciplinary Engineering

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A three-stage subsoil interval mixing four-gang plough (TSIMF) was created to ameliorate the condition of the planosol soil. To obtain wider working width (2 m), the previously designed three-stage subsoil interval mixing plow (TSIM) (working width = 1 m) was doubled and unified. The soil penetration resistance was measured before and after the tillage operation of the TSIMF to contrast the tilling effect. The predicted draughts and the predicted draught moments were also calculated and compared for the previous and present prototypes: Three-stage Subsoil Mixing Plow (TSM), Three-stage Subsoil Interval Mixing Plow (TSIM), and TSIMF. The predicted total draught and the minimal predicted draught moment of the TSIMF were discussed to find out the proper working traction which could keep the tractor running straight and making it proceed ahead with balance. The results showed that the soil penetration resistance was reduced obviously after the tillage of the TSIMF. The predicted total draught of the TSIMF will be about 90 kN including the running resistance of the tractor. The predicted draught moment of the TSIMF will be the smallest of three multi-stage mixing plows at -10 kNm when the tractor width is 2 m.

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Three-stage Subsoil Interval Mixing Plough for Improvement of Planosol

Cited by 2 publications

References 10 publications

Potentialities and limitations of Planosols with distinct depths of diagnostic horizon

Potentialities and limitations of Planosols with distinct depths of diagnostic horizon

The Configuration of a New Three-Stage Subsoil Interval Mixing Four-Gang Plough for Improving Planosol

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