Soil macro- and microstructure as affected by different tillage systems and their effects on maize root growth

Ferro, Nicola Dal; Sartori, Luigi; Simonetti, Gianluca; Berti, Antonio; Morari, Francesco

doi:10.1016/j.still.2014.02.003

Cited by 139 publications

(82 citation statements)

References 35 publications

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“…6). In the topsoil, macroporosity (r ≥ 73µm) was lower under RT than CT, as reported by many authors (e.g., Dal Ferro et al, 2014). The pore system has also less flow-active pores under RT than CT, as noted by Lipiec et al (2006).…”

Section: Porosity Structuresupporting

confidence: 60%

“…The increase in Pc with depth without significant BD modification suggested an increased number of contact points per unit volume resulting from the agglomeration of fine particles under the long-term action of mechanical loads, climatic agents, biological organisms and/or clay minerals acting as cementing agents, especially in RT18 (Guérif, 1994). This process could be responsible for negative effects on root growth and root-induced parameters, leading to more superficial root lateral development sometimes observed in RT (Munkholm et al, 2008;Dal Ferro et al, 2014). In the topsoil in RT18, r max and PSD max were the lowest among the layers considered.…”

Section: Porosity Structurementioning

confidence: 97%

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Soil compaction resulting from different soil tillage systems

2014

2014 ASABE Annual International Meeting

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Section: Porosity Structuresupporting

confidence: 60%

Section: Porosity Structurementioning

confidence: 97%

Soil compaction resulting from different soil tillage systems

2014

2014 ASABE Annual International Meeting

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“…Potential evapotranspiration rates, calculated according to Allen et al [16], were used as atmospheric boundary conditions. Root distribution was set according to Dal Ferro et al [17], while the root water uptake followed the models proposed by Feddes et al [18]. Initial water content conditions were specified using data measured by FDR, while free drainage was set as the lower boundary condition.…”

Section: Calibration/validation Of Hydrus 2d/3dmentioning

confidence: 99%

“…The 3D domain was 0.8-m depth, 0.75-m width and 1-m length; the root distribution was set according to Dal Ferro et al [17], while the root water uptake followed the model proposed by Feddes et al [18].…”

Section: Numerical Simulation Of Irrigation Systems With Hydrus 2d/3dmentioning

confidence: 99%

Effect of Incident Rainfall Redistribution by Maize Canopy on Soil Moisture at the Crop Row Scale

Martello

Ferro

Bortolini

et al. 2015

Water

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Abstract:The optimization of irrigation use in agriculture is a key challenge to increase farm profitability and reduce its ecological footprint. To this context, an understanding of more efficient irrigation systems includes the assessment of water redistribution at the microscale. This study aimed to investigate rainfall interception by maize canopy and to model the soil water dynamics at row scale as a result of rain and sprinkler irrigation with HYDRUS 2D/3D. On average, 78% of rainfall below the maize canopy was intercepted by the leaves and transferred along the stem (stemflow), while only 22% reached the ground directly (throughfall). In addition, redistribution of the water with respect to the amount (both rain and irrigation) showed that the stemflow/throughfall ratio decreased logarithmically at increasing values of incident rainfall, suggesting the plant capacity to confine the water close to the roots and diminish water stress conditions. This was also underlined by higher soil moisture values observed in the row than in the inter-row at decreasing rainfall events. Modelled data highlighted different behavior in terms of soil water dynamics between simulated irrigation water distributions, although they did not show significant changes in terms of crop water use efficiency. These results were most likely affected by the soil type (silty-loam) where the experiment was conducted, as it had unfavorable physical conditions for the rapid vertical water movement that would have increased infiltration and drainage. OPEN ACCESSWater 2015, 7 2255

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“…The main effects of soil compaction caused by excessive agricultural traffic are the increase of soil bulk density, soil penetration resistance and, consequently, the reduction of total porosity (McPhee et al, 2015), macroporosity (Dal Ferro et al, 2014), soil-water storage (Moraes et al, 2016a) and crop root growth (Bengough, 2012). However, it is not yet known whether agricultural traffic in sandy soils, which have a large volume of macropores, could be beneficial to plants by reducing pore size and altering water retention in these soils.…”

Section: Introductionmentioning

confidence: 99%

Corn crop performance in an Ultisol compacted by tractor traffic

Moraes

Levien

Trein

et al. 2018

Pesq. agropec. bras.

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-The objective of this work was to determine whether compaction by tractor traffic in areas managed under controlled traffic can be limiting to corn crop, under different tillage systems, in a Typic Paleudult of medium texture. Two experiments were carried out, one in the field over two crop seasons and another in a greenhouse. The treatments consisted of minimum tillage with chiselling; no-tillage subjected to one, three, or six passes of a tractor weighing 3.8 Mg; and an area without traffic. Evaluations were performed for soil physicohydraulic parameters (soil bulk density, penetration resistance, and water retention curve), root and shoot growth, and grain yield. The agricultural traffic increased bulk density, soil penetration resistance, and water content at field capacity. The highest values for soil penetration resistance (1,600 kPa) and bulk density (1.67 g cm ) in the trafficked soil were not limiting to corn development and increased grain yield for both crop seasons. Tractor traffic of up to six passes is beneficial to corn cultivation, and it increases water availability and corn grain yield.

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Soil macro- and microstructure as affected by different tillage systems and their effects on maize root growth

Cited by 139 publications

References 35 publications

Soil compaction resulting from different soil tillage systems

Soil compaction resulting from different soil tillage systems

Effect of Incident Rainfall Redistribution by Maize Canopy on Soil Moisture at the Crop Row Scale

Corn crop performance in an Ultisol compacted by tractor traffic

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