Modeling change in soil compaction due to agricultural traffic as function of soil water content

Défossez, Pauline; Richard, Guy; Boizard, Hubert; O’Sullivan, Michael

doi:10.1016/s0016-7061(03)00096-x

Cited by 86 publications

(54 citation statements)

References 20 publications

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“…The soil is a loam with 17.3% clay, 61.1% loam, 21.6% sand, 1.69% of organic matter and pH in water of 7.3. The field was cropped with oilseed rape under intensive agriculture practices and was previously treated with isoproturon in 2002, 2004 and 2006. The soil samples were prepared at three realistic levels of compaction (no, moderate and high), so that the increase in bulk density was 0.3 g cm -3 between no and high compaction, as observed following wheeling (Défossez et al 2003) (Table 1). Moderate and high compaction resulted in a reduction in soil volume of 10 and 20%, respectively.…”

Section: Soil Samplesmentioning

confidence: 99%

No evidence for effect of soil compaction on the degradation and impact of isoproturon

Mamy¹,

Vrignaud²,

Cheviron³

et al. 2010

Environ Chem Lett

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Soil is damaged by several threats and, among them, chemical contamination by pesticides and compaction. However, the effect of compaction on the fate of pesticides in soil, and the impact of pesticides on soil biological functioning are unknown. Therefore, we studied the effect of soil compaction on the degradation of the herbicide isoproturon, and the impact of this herbicide on an enzyme activity (b-glucosidase) involved in the C soil cycle. Undisturbed soil samples were prepared at different bulk densities, treated with isoproturon then incubated at 18°C in darkness for 63 days. The results showed that soil compaction did not modify significantly the degradation of isoproturon, neither the formation rates nor the nature of its metabolites. Moreover, compaction did not modify the impact of isoproturon on b-glucosidase activity. To our knowledge, these are the first results concerning the interactions between soil compaction and the degradation and impact of a pesticide.

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Section: Soil Samplesmentioning

confidence: 99%

No evidence for effect of soil compaction on the degradation and impact of isoproturon

Mamy¹,

Vrignaud²,

Cheviron³

et al. 2010

Environ Chem Lett

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“…Soil compaction is predominantly influenced by the amount of soil moisture content as well as magnitude of external mechanical load acting on the soil matrix during tillage operations (Defossez et al, 2003). It is also dependent on soil texture (Hamza and Anderson, 2005).…”

Section: Introductionmentioning

confidence: 99%

Spatial Patterns of Penetration Resistance and Soil Moisture Distribution in a Sandy Loam Soil (Eutric leptosol)

Lomeling¹,

Lasu²

2015

International J. of Soil Science

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Bivariate relations between penetration resistance and soil moisture content was conducted on sandy loam soil (Eutric leptosol) at the University of Juba demonstration farm. Soil Penetration Resistance (PR) was measured using an Eijkelkamp pocket penetrometer to a depth of 0-15 cm depth with Soil Moisture Content (SMC) measured using an Eijkelkamp sensor theta probe. Measured SMC within the plots varied from 9-35% whereas, the PR varied from 0.1 to 4.5 kg cmG 2 . The results showed significant negative correlation between PR and SMC expressed by a polynomial function with r 2 = 0.48 and Pearson Coefficient, R = -0.657. Spatial distribution of PR and SMC using both kriging and Inverse Distance Weighting (IDW) interpolation methods showed no significant differences. However, PR tended to decrease with an increasing SMC in an easterly direction. The results also showed that the spherical model gave the best fit for both PR and SMC at r 2 = 0.527 and 0.747 with moderate and strong spatial dependency at 28.9 and 10.53%, respectively. Though the effective range A 0 , for both PR and SMC at 24.14 and 30.4 m, respectively were more or less similar, the strong spatial dependency of SMC suggested its significance as a limiting factor for plant growth as opposed to PR which on average was at 1.592 kg cmG 2 .

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“…This could be due to root rot pathogens that are found in the soil that are more problematic in soils with high moisture. Higher soil moisture in the ND plots may result in more compact soil (Allmaras et al 1988;Défossez et al 2003;Hamza and Anderson 2005), and more compact soils favor Fusarium root rot and Phytophthora root rot (Burke et al 1980;Gray and Pope 1986). There is no clear explanation for the differences in root rot between Ripley and Williams 82 interaction of soil source × cultivar, but the two cultivars differ in root structures and Ripley has moderate resistance to root rots in general (Cooper et al 1990;Farias-Neto et al 2007).…”

Section: Journal Of Soil and Water Conservationmentioning

confidence: 99%

Influence of drainage on soybean seedling health

Han¹,

Kandel²,

Leandro³

et al. 2017

Journal of Soil and Water Conservation

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Subsurface tile drainage is a commonly used agricultural practice in Iowa croplands. Little is known about the effect of drainage on soybean (Glycine max) disease. Field and greenhouse studies were conducted to study the effect of drainage on seedling health. A field experiment was conducted at the Iowa State University research farm near Crawfordsville, Iowa, in 2012 and2013 (ND, no artificial drainage). A greenhouse experiment was conducted three times to compare two soil sources (ND and CvD soil from the field experiment), two soybean cultivars (Ripley and Williams 82), and three watering intensities (low, moderate, and saturated). Plants were sampled at the second trifoliate stage to assess root rot severity, root dry weight, root size, and Fusarium spp. incidence in roots. In the field, root rot severity was significantly (p < 0.01) greater in the ND and SD drainage treatments than in the CvD treatment in 2013 but not in 2012. Fusarium spp. were isolated less frequently from roots grown in ND soil than all other drainage treatments, in both years. In the greenhouse study, watering intensity significantly affected root rot on Ripley, with more water causing more root rot (p < 0.01). Despite greater rot, roots showed increased root weight, root length, root diameter, and number of root tips with increasing soil water up to saturation for both varieties. Fusarium incidence decreased as water amount increased. In summary, fields with high moisture are more prone to root rot, but well-drained soil favors infection of soybean roots by Fusarium spp. Key words: drainage-Fusarium spp.-root rot-soybeanAmple water supply is essential for plant growth; however, excessively wet soils cause several problems including inadequate soil oxygen (O 2 ) supply, reduced nutrient uptake, poor root growth, inadequate nodulation, and decreased photosynthesis, resulting in reduced foliage that ultimately impacts yield (Linkemer et al. 1998). Soybean (Glycine max L.) germination and emergence is favored in well-aerated soils (Pavelis 1987). Additionally, lower soil moisture increases soil trafficability, which can lead to earlier planting and germination, which potentially protect plants from possible later season water deficiency (Bornstin and Hedstrom 1982;Mayhew and Caviness 1994;Mengistu and Heatherly 2006). Subsurface drainage covers 12% of the agriculture land in the United States and accounts for 3.6 × 10 6 ha (8.9 × 10 6 ac) of cropland in Iowa (Baker et al. 2004;Evans and Fausey 1999; Garrison et al. 1999;Linkemer et al. 1998). Subsurface drainage is one of the most valuable practices to protect the crops as it can remove excess water after a heavy rain or over irrigation from the upper portions of the active root zone. The benefits of drainage include (1) removing excessive water that accumulated below the surface and therefore creating a well-aerated soil condition that favors soybean germination (Evans and Fausey 1999;Pavelis 1987;Tyagi and Tripathi 1983); (2) increasing trafficability by facilitating heavy ...

show abstract

Modeling change in soil compaction due to agricultural traffic as function of soil water content

Cited by 86 publications

References 20 publications

No evidence for effect of soil compaction on the degradation and impact of isoproturon

No evidence for effect of soil compaction on the degradation and impact of isoproturon

Spatial Patterns of Penetration Resistance and Soil Moisture Distribution in a Sandy Loam Soil (Eutric leptosol)

Influence of drainage on soybean seedling health

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