Chapter 8 Soil Tillage

Srivastava, Ankit; Goering, Carroll E.; Rohrbach, Roger P.; Buckmaster, Dennis R.

doi:10.13031/2013.41470

Cited by 10 publications

(13 citation statements)

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“…Operational factors that affect the wear of tillage tools are the working speed, depth, and type of soil [43]. In the experiment, work team qualitatively identified that the tractor-seeder assembly supports greater stresses in direct relation to the sowing speed since rice levee act like speed bumps (or speed breakers) during rice sowing.…”

Section: Resultsmentioning

confidence: 99%

“…Archard and Hirst [44] developed a relationship for sliding wear, where wear rate (W) is proportional to applied normal load (F) and relative velocity (v). A 0.5 m/s increase in working speed increases draft by about one Newton for sandy soil [43]. This relationship was modified to Graff, L. [44], equation 6, when the constant of proportionality (k) and weighting constants (b and c) were added.…”

Section: Resultsmentioning

confidence: 99%

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Incidence of the mechanized sowing speed in irrigated rice

González-Betancourt

Alonso-Fernández

Mayorga-Ruíz

2017

DYNA

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This paper presents some experimental results to determine the incidence of mechanized sowing speed in the development and growth of rice in El Espinal-Tolima. Using a completely randomized design and a seed density of 104.5 ± 3.3 kg/ha, plots were sown in three replicates at 3.31 ± 0.05 km/h, 5.13 ± 0.18 Km/h, and 6.98 ± 0.24 km/h. Plant population, plant weight, dry matter, moisture content, and yield showed statistically significant differences with respect to sowing speed. This research found that the sowing speed has a proportional relationship with: a) the percentage of plants grouped in their roots, b) the number of non-productive tillers, c) the fuel consumed rate, d) uncovered seed, e) effective field capacity. The sowing speed of 5.13 ± 0.18 km/h was achieved by plants with a higher number of panicles per m 2 and yield: this is optimal.Keywords: Sowing speed; irrigated rice; rice profitability Incidencia de la velocidad de siembra mecanizada en el arroz de riego Resumen Se determinó la incidencia de la velocidad mecanizada de siembra en el desarrollo y crecimiento del arroz en El Espinal-Tolima. Utilizando un diseño completamente al azar y una densidad de semilla de 104.5 ± 3.3 kg/ha, se sembraron parcelas en tres repeticiones a 3.31 ± 0.05 km/h, 5.13 ± 0.18 Km/h y 6.98 ± 0.24 km/h. La población de las plantas, el peso de la planta, la materia seca, el contenido de humedad y el rendimiento mostraron diferencias estadísticamente significativas con respecto a la velocidad de siembra. Se encontró que la velocidad de siembra tiene una relación proporcional con: a) el porcentaje de plantas agrupadas en sus raíces, b) los tallos no productivos, c) el combustible consumido, d) las semillas descubiertas, e) la capacidad de campo efectiva. La velocidad de siembra de 5.13 ± 0.18 km/h logro plantas con mayor número de panículas por m 2 y rendimiento, lo cual es óptimo.Palabras claves: Velocidad de siembra; arroz de riego; rentabilidad del arroz.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Incidence of the mechanized sowing speed in irrigated rice

González-Betancourt

Alonso-Fernández

Mayorga-Ruíz

2017

DYNA

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“…To determine the coefficient of soil-metal friction, vertical weight was loaded on a slider and frictional force values corresponding to different normal loads were measured and compared with normal load. The slope of the line is a measure of the friction coefficient (Srivastava et al, 2006).…”

Section: Acta Technologica Agriculturae 2/2018 Yousef Abbaspour-gilanmentioning

confidence: 99%

“…Adhesion forces between soil and other material are caused by films of their moisture, which is a result of the surface tension of water. Therefore, adhesion force is dependent on the surface tension and moisture tension (Srivastava et al, 2006). Measuring of adhesion as friction has necessitated performing simultaneous measurements of 1) friction stress; 2) soil movement on the metal-soil contact area; and 3) normal load on the surface (Gill and Vanden Berg, 1968a).…”

Section: Acta Technologica Agriculturae 2/2018 Yousef Abbaspour-gilanmentioning

confidence: 99%

“…In the adhesion phase, the moisture layer between the soil particles and metal is expanded, and thus adhesive forces occur and cause a rapid increment in the apparent coefficient of friction due to moisture content fig. 4 General phases of soil friction used to determine the soil reaction to soil moisture content Source: Srivastava et al, 2006 increment. With an increase in moisture and decrease in moisture tension, there probably occurs a situation when adhesion decreases faster than moisture content increases and causes total load reduction.…”

Section: Acta Technologica Agriculturae 2/2018 Yousef Abbaspour-gilanmentioning

confidence: 99%

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Investigation of the Effect of Soil Moisture Content, Contact Surface Material and Soil Texture on Soil Friction and Soil Adhesion Coefficients

Abbaspour‐Gilandeh

Hasankhani-Ghavam

Shahgoli

et al. 2018

Acta Technologica Agriculturae

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Soil friction and soil adhesion increase the implement draft force and energy consumption particularly in the tools that have larger contact area with soil. The main ways of lowering the total draft force of the tillage tools include the use of proper materials in tools structures as well as application of the tools in appropriate soil moisture content condition. This paper investigates the effects of soil moisture content, contact surface material and soil texture on soil friction and soil adhesion coefficients. To measure the coefficients of soil friction and soil adhesion, a measurement system was developed at the University of Mohaghegh Ardabili. Experiments for each soil texture were performed at five levels of soil moisture content and four contact materials of steel, cast iron, rubber, and teflon with three replications. Results have shown that in all soil types, the effects of soil moisture content and contact materials had a significant effect on the coefficient of both soil friction and soil adhesion at the probability level of 1%. The coefficient of friction increased with soil moisture content increment and reached its maximum and then had a drop in the fluid phase. Results have shown that the mean values of soil friction and soil adhesion coefficients were significantly different from the studied soils.

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Wear on steel tillage tools: A review of material, soil and dynamic conditions

Yazıcı

2024

Soil and Tillage Research

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Chapter 8 Soil Tillage

Cited by 10 publications

References 0 publications

Incidence of the mechanized sowing speed in irrigated rice

Incidence of the mechanized sowing speed in irrigated rice

Investigation of the Effect of Soil Moisture Content, Contact Surface Material and Soil Texture on Soil Friction and Soil Adhesion Coefficients

Wear on steel tillage tools: A review of material, soil and dynamic conditions

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