Structural characterization of a compacted alfisol under different tillage systems

Brunel-Saldias, Nidia; Martínez, Ingrid; Seguel, Óscar; Ovalle, Carlos; Acevedo, Edmundo

doi:10.4067/s0718-95162016005000050

Cited by 7 publications

(9 citation statements)

References 23 publications

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“…Conventional tillage or no-tillage are the most common soil management practices in different agricultural regions of the world (Agostini et al, 2012;Brunel et al, 2013;Brunel-Saldias et al, 2016). Nevertheless, part of agriculture and livestock regions are located in high slope reliefs, where studies concerning soil management practices are scarce in comparison with flat lands.…”

Section: Introductionmentioning

confidence: 99%

Soil surface roughness under tillage practices and its consequences for water and sediment losses

Rocha

Bhattarai

Fernandes

et al. 2016

J. Soil Sci. Plant Nutr.

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The present study aims to determine the effects of soil management practices on soil surface roughness and the consequences of these phenomena on water and sediment losses. Laboratory experiment was conducted on a Chernozems clayey soil subjected to a sequence of two 30 min simulated rainfall of 50.8 mm h -1 and 114.3 mm h -1 and four soil management practices: contour tillage (CT), downhill tillage (DT), no-tillage simulated (NTs) and bare soil (BS). Soil surface roughness was evaluated using a laser distance meter. Results showed that the soil tillage in downhill or contour increased soil roughness by 2.90 and 2.76, respectively, reducing the water losses under low rain intensity by 12.8% and 6.4%. Soil surface roughness quickly changed after the onset of rain, and higher values of changes in soil roughness were observed for contour (22.73%) and downhill tillage (21.05%) managements. Soil coverage factor and the direction of tillage were the most important characteristics in contrast with soil surface roughness to reduce the sediment losses. No-tillage simulated (0.59 tha -1 ) and contour tillage (1.30 t ha -1 ) were the soil management practices with lower sediment losses compared to other managements studied. The principal theoretical implication of this study is that land use planning with agriculture, livestock must be designed to prevent the soil from being exposed, or if exposed, tillage in contour should be adopted. The input of litter on soil surface had an important role in reducing the sediment and water losses.

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Section: Introductionmentioning

confidence: 99%

Soil surface roughness under tillage practices and its consequences for water and sediment losses

Rocha

Bhattarai

Fernandes

et al. 2016

J. Soil Sci. Plant Nutr.

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“…Brunel- Saldias et al, (2016) reported that the soil had low water holding capacity in the profile due to the low water retention at the permanent wilting point (matric water potential lower than -1.500 kPa), associated with a high bulk density and clay content. The conservation tillage systems (ZT and ZTS), were similar in the parameters of fast drainage pores (FDP), aggregate stability index, airflow, and rest coefficient compared with CT.…”

Section: Nitrate (No 3 -) Concentration (Mg Kgmentioning

confidence: 99%

Impact of different tillage practices on soil physical properties, nitrate leaching and yield attributes of maize (Zea mays L.)

Khan

Shah

Nawaz³

et al. 2017

J. Soil Sci. Plant Nutr.

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Tillage, undoubtedly, is one of the most crucial practices to ameliorate crop productivity and maintain soil health.A field experiment was conducted at research farms; Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan to examine how soil properties and maize crop respond to different tillage strategies (minimum, conventional and deep tillage). Randomized complete block design (RCBD) was finalized for the experiment with three repeats. Maximum total biomass production and grain yield were recorded in case of deep tillage practices. Conventional tillage not only improved leaf area index but also harvest. Minimum tillage minimized the leaching of nutrients especially nitrates. Soil bulk density (Mg m -3 ), particle density, soil organic carbon (g kg -1), infiltration rate (mm hr -1 ), percent porosity (%) and soil saturated hydraulic conductivity (mm hr -1 ) got affected by different tillage practices. Minimum tillage is suggested to avoid leaching losses of nutrients, this loss reduces the crop productivity.

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“…1 in Supplemental Material 1) was observed but not between StI and MDV. Higher DR values (i.e., lower stability), even than those for T0, were detected for sites where harvesting residues were exported (2-N and 4-N), which indicates low resistance of soil microaggregates to breakdown by water; instead, for those sites where residues were left in the field, lower DR (high microaggregate stability) values were observed, but few cases were below the threshold level of DR<0.3 reported for highly stable soils (Brunel et al, 2016).…”

Section: Resultsmentioning

confidence: 59%

Physical assessment of a Mollisol under agroecological managements at Quillota valley. Mediterranean Central Chile

Casanova

Ticona

Salazar

et al. 2020

IJANR

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A number of agroecological practices have been proposed for assessing soil quality. Several physical soil properties have been shown to be important for determining soil quality by using the sustainability index (SI) and the cumulative rating approach. The main aim of the study was to determine the effects of different agroecological managements on the physical properties of a Mollisol in the Mediterranean central Chile. In addition, some physical properties were selected to compare the soil quality among different agroecological management practices and highly mechanized intensive systems by using the SI and cumulative rating approaches. An experimental field was defined in an area of 3.5 ha in 2014. Four sites with different agroecological practices were selected in 2019 to assess soil physical properties: rainfed Mediterranean annual prairie - no tillage (1-S), irrigated perennial prairie with deep-root species - no tillage (2-N), irrigated annual and perennial prairie - conventional tillage (4-S), irrigated vegetables and flowers - minimum tillage (4-N); an avocado orchard with traditional management was used as the control. Soil organic carbon and the following soil physical properties were selected to assess SI and CR: bulk density, total porosity, void ratio, air capacity, fast-drainage pores, relative field capacity, hydraulic conductivity, structural stability index and unavailable water pores. The applicability of the selected physical indicators to the SIs of agroecological management practices compared with the control was demonstrated. The cumulative rating index (CR) for each land use showed that all agroecological practices constituted sustainable soil management (25≤CR<30), whereas the avocado orchard showed the least sustainable management (30≤CR<40), and a change in soil use is recommended.

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Structural characterization of a compacted alfisol under different tillage systems

Cited by 7 publications

References 23 publications

Soil surface roughness under tillage practices and its consequences for water and sediment losses

Soil surface roughness under tillage practices and its consequences for water and sediment losses

Impact of different tillage practices on soil physical properties, nitrate leaching and yield attributes of maize (Zea mays L.)

Physical assessment of a Mollisol under agroecological managements at Quillota valley. Mediterranean Central Chile

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