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Tillage, Soil Management, and Field Traffic: Impact on Soil Physical and Mechanical Properties

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A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Farming Sustainability".

Deadline for manuscript submissions: closed (31 October 2022) | Viewed by 15677

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Dr. Mario Monteiro Rolim

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Guest Editor

Department of Agricultural Engineering, Federal Rural University of Pernambuco, Recife 52171-900, PE, Brazil
Interests: pre-compression stress; agricultural traffic; soil mechanics; compaction; sugar cane

Dr. Renato Paiva de Lima

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Guest Editor

Department of Soil Science, “Luiz de Queiroz” College of Agriculture, University of São Paulo, Piracicaba 13418-900, Brazil
Interests: soil physics

Special Issue Information

Dear Colleagues,

Soil tillage is a major mechanized operation causing soil physical changes. Soil management, including crop cover, rotation, and biological chiseling, has seen the development of significant strategies to improve soil physical qualities. However, a sequence of field traffic operations, including spraying, fertilizing, and harvesting, are part of a crop’s schedule, and successive traffic operations may result in compaction. Strategies to mitigate the effect of tillage on the degradation of soil structure, interventions using soil management (cover crop, straw management, tillage systems, etc.), and field traffic control and stress-induced prediction are actions that still need to be implemented to maintain soil health. Thus, in this Special Issue, the submission of studies that identify major soil structure issues, new strategies for soil structure improvement, and actions to mitigate and model compaction are encouraged.

Dr. Mario Monteiro Rolim
Dr. Renato Paiva de Lima
Guest Editors

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Keywords

mechanization
soil compaction
modeling
soil stress
soil structure
soil physical restrictions
soil mechanical properties
straw mulching
tire–soil interaction
cover crops
biological chiseling
mechanical chiseling

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Published Papers (7 papers)

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Research

11 pages, 2082 KiB

Open AccessArticle

Sugarcane Row Gaps Assessment over Successive Burned and Unburned Annual Harvests

by Roberta Q. Cavalcanti, Mário M. Rolim, Renato P. de Lima, Pedro F. S. Ortiz, Elvira M. R. Pedrosa and Joez A. de Moraes Rodrigues

Agronomy 2023, 13(10), 2545; https://doi.org/10.3390/agronomy13102545 - 3 Oct 2023

Cited by 1 | Viewed by 1292

Abstract

Mechanized harvesting operations promote a series of benefits to sugarcane production but are also a cultivation step responsible for developing a series of problems for the soil and the plants due to plant mechanical damage, resulting in a decline in production over successive cycles due to row gaps emergence. The objective of this study was to evaluate the impact of burned and unburned harvesting systems on the occurrence of sugarcane row gaps over annual harvests. For this study, a burned and an unburned area were selected. The row gap number and length (sum of gaps, m) were measured after the sugarcane planting and plant-cane cultivation stages and after the first, second, and third sugarcane ratoon harvests. The results revealed that there was no difference in the number and length of row gaps between the burned and unburned harvesting systems. However, the row gap number and length considerably increased after the second harvest in both treatments (burned and unburned). The row gap number and length were close to 5 and 1–5 m at the planting and plant-cane cultivation stages and increased to around 60 and 70 m as the harvest progressed, respectively, in burned and unburned harvesting. Our results suggest that row gaps in sugarcane fields are independent of the burned or unburned sugarcane harvesting system but increase as the number of harvests increases. Full article

(This article belongs to the Special Issue Tillage, Soil Management, and Field Traffic: Impact on Soil Physical and Mechanical Properties)

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12 pages, 632 KiB

Open AccessArticle

Effects of Second-Season Crops on Soybean Cultivation in Compacted Soil in Brazilian Cerrado

by Camila Jorge Bernabé Ferreira, Alessandro Guerra da Silva, Vívian Ribeiro de Oliveira Preto, Cássio Antonio Tormena, Guilherme Braga Pereira Braz, Matheus de Freitas Souza and André Luiz Biscaia Ribeiro da Silva

Agronomy 2023, 13(1), 79; https://doi.org/10.3390/agronomy13010079 - 26 Dec 2022

Cited by 1 | Viewed by 1766

Abstract

In no-tillage systems, soil compaction has caused negative impacts on crop productivity and soil quality. The objective of this study was to evaluate the soil physical quality after different crops of the second season: maize, sorghum, and millet in compacted and uncompacted soils, in addition to evaluating the performance of soybean in succession in Rhodic Ferralsol under no-tillage (NT) in the Brazilian Cerrado biome. A field experiment was conducted during the second season of 2019 and the first season of 2019/20 in Rio Verde, Brazil. The experimental design used randomized blocks in a 3 × 2 factorial scheme, with six replications. The first factor corresponded to the cultivation of maize, sorghum, and millet; the second factor was the cultivation of these crops in compacted and uncompacted soils. The physical properties of the soils in the 0–0.1 and 0.1–0.2 m depth layers were evaluated after the second season of cultivation, in addition to the agronomic characteristics of the soybean cultivated in succession. The results indicate that the compaction influenced the soil physical quality, mainly in the 0.1–0.2 m layer, reflecting a decrease in the performance of the soybean crop (i.e., the plant height, number of pods per plant, and grain yield). The use of the second-season crop of millet improved the soil physical properties of penetration resistance and macroporosity and improved the water/air relation. The use of millet provided a reduction of up to 20% in the soil penetration resistance. About 10% more soybean was produced after cultivation in succession to millet compared to maize and sorghum. Full article

(This article belongs to the Special Issue Tillage, Soil Management, and Field Traffic: Impact on Soil Physical and Mechanical Properties)

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12 pages, 1849 KiB

Open AccessArticle

Soil Strength and Structural Stability Are Mediated by Soil Organic Matter Composition in Agricultural Expansion Areas of the Brazilian Cerrado Biome

by Jorge L. Locatelli, Renato P. de Lima, Rafael S. Santos, Maurício R. Cherubin, Rachel E. Creamer and Carlos E. P. Cerri

Agronomy 2023, 13(1), 71; https://doi.org/10.3390/agronomy13010071 - 25 Dec 2022

Cited by 7 | Viewed by 2665

Abstract

A growing demand for resources has led to the expansion of agricultural areas worldwide. However, land conversion associated with poor soil management might lead to soil physical degradation. We investigated the effects of land conversion on soil physical properties in the Brazilian Cerrado region, under native Cerrado vegetation (NV)—pasture (PA) and NV—cropland (CL) conversion scenarios. Soil physical properties related to compaction, pore size distribution, and structure stability were assessed up to a 30 cm depth. Additionally, carbon levels of soil organic matter fractions (particulate and mineral-associated organic matter) were determined. Our results indicate that the compaction process equivalently reduced the soil porosity in PA and CL. However, soil penetration resistance was higher in PA (~2.5 MPa) than in CL (~1.5 MPa), as well as the stable mean weight diameter of soil aggregates. The highest total and labile organic carbon levels were observed in CL, while the lowest levels of total and labile organic carbon occurred in PA (smaller than in CL). These results suggest that the higher structural stability found in PA was mediated by the predominance of stabilized carbon (a decrease in the proportion of soil labile carbon), causing the gaining of soil strength under negligible soil volume variation (in comparison with CL). Our results suggest that the reduction in the soil porosity by compaction due to PA and CL uses can equivalently reduce macropore space and soil hydraulic functioning, and that soil carbon quality alterations (i.e., labile vs. stabilized fractions) are responsible for the gain in soil strength in long-term degraded PA areas. Future research should focus on understanding the magnitude in which soil organic matter controls soil physical attributes, such as soil strength in these expansion areas, and whether this gain in soil strength limits plant development and compromises productivity in the long term. Full article

(This article belongs to the Special Issue Tillage, Soil Management, and Field Traffic: Impact on Soil Physical and Mechanical Properties)

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12 pages, 1270 KiB

Open AccessArticle

Seasonal and Soil Use Dependent Variability of Physical and Hydraulic Properties: An Assessment under Minimum Tillage and No-Tillage in a Long-Term Experiment in Southern Italy

by Stefano Popolizio, Anna Maria Stellacci, Luisa Giglio, Emanuele Barca, Matteo Spagnuolo and Mirko Castellini

Agronomy 2022, 12(12), 3142; https://doi.org/10.3390/agronomy12123142 - 10 Dec 2022

Cited by 7 | Viewed by 1580

Abstract

Defining the optimal sampling time across the growing season is crucial to standardize sampling protocols for soil physical status monitoring and to achieve comparable results under different experimental conditions and on different sites. In this study, the seasonal variability of soil physical and hydraulic properties under two conservative soil management strategies, minimum tillage and no-tillage, was evaluated in a long-term field experiment. On two sampling dates, autumn 2021 and summer 2022, soil bulk density (BD) and volumetric soil water content at the time of the experiments (θ_i) were measured in each experimental unit and Beerkan infiltration experiments were performed. The soil water retention curve and the hydraulic conductivity function were then estimated using the Beerkan estimation of soil transfer parameters (BEST) methodology. In this way, the saturated hydraulic conductivity (Ks) and a set of capacitive indicators—plant available water capacity (PAWC), soil macroporosity (P_MAC), air capacity (AC) and relative field capacity (RFC)—were obtained. Results underlined the role of soil moisture conditions as a main factor affecting variability in soil physical properties. Different soil moisture under autumn and summer samplings significantly affected BD (1.0093 and 1.1905 g cm⁻³, respectively, in autumn and summer) and Ks (0.0431 and 0.0492 mm s⁻¹). Relationships observed between BEST-derived variables, such as P_MAC (or AC) and RFC, and measured variables, such as BD, showed consistent results, with increases in P_MAC to BD decreases. However, a comparison of capacity-based indicators obtained by BEST with those obtained from measured soil water retention curves, in a previous year but under comparable soil conditions, highlighted some discrepancies. This finding drives the focus towards the need to use more robust datasets deriving from experimental measurements or from coupling information obtained from measured and estimated data. Finally, this study provided further evidence that, in the long-term field experiment investigated, the two soil management systems allowed keeping the values of key soil physical quality indicators, such as bulk density and saturated hydraulic conductivity, within the optimal or near- optimal reference ranges. Full article

(This article belongs to the Special Issue Tillage, Soil Management, and Field Traffic: Impact on Soil Physical and Mechanical Properties)

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16 pages, 1151 KiB

Open AccessArticle

Mechanical Intervention in Compacted No-Till Soil in Southern Brazil: Soil Physical Quality and Maize Yield

by Regiane Kazmierczak Becker, Eduardo Augusto Agnellos Barbosa, Neyde Fabíola Balarezo Giarola, Edson Giovani Kochinski, Fabrício Pinheiro Povh, Ariane Lentice de Paula and Maurício Roberto Cherubin

Agronomy 2022, 12(10), 2281; https://doi.org/10.3390/agronomy12102281 - 23 Sep 2022

Cited by 3 | Viewed by 2606

Abstract

The intense and successive use of mechanization in modern cropping systems has increased soil compaction under no-till areas. In this study, we aimed to assess the performance of a fixed shank coupled with a seeder for the mitigation of soil compaction induced by machinery traffic as an efficient alternative to replacing the chiseling and subsoiling operations in no-till areas. We evaluated a long-term experiment conducted in clay loam (Rhodic Haplustox) soil in southern Brazil. The experiment was conducted under a randomized block design, whose treatments consisted of three wheel-traffic intensities: 0 wheel-traffic (0 WT), 14 wheel-traffic (14 WT), and 28 wheel-traffic (28 WT), combined with four soil tillage mechanical interventions under a no-till field: no-till (NT), no-till with a fixed shank (NT + FS), soil chiseling (SC), and soil subsoiling (SS). The soil physical attributes evaluated were the soil penetration resistance (SPR), macroporosity (MaP), microporosity (MiP), total porosity (TP), bulk density (BD), field-saturated hydraulic conductivity (K_fs), S index, and plant-available water capacity (PAWC). In addition, three critical soil physical functions were evaluated by using a soil physical quality index (SPQI). The results showed that SPR was sensitive to soil compaction and captured differences among the mechanical intervention methods. Machinery traffic caused soil compaction, increasing SPR and reducing PAWC. Soil chiseling and subsoiling promoted lower BD, a higher TP, MaP, Kfs, and higher S index at the 0.05–0.15 m soil layer. Based on the SPQI, no changes were detected in the soil physical functions between NT and NT + FS. On the other hand, SC and SS enhanced soil physical functioning by 10%. We concluded that a 15-cm deep fixed shank could not mitigate the soil compaction induced by machinery traffic at the seeder operation. Therefore, this method is less effective in improving the soil’s physical environment than chiseling and subsoiling operations. Finally, we encourage monitoring the persistence of these benefits on the soil over the subsequent crop seasons and in years with an intense water deficit along with the crop cycle. Full article

(This article belongs to the Special Issue Tillage, Soil Management, and Field Traffic: Impact on Soil Physical and Mechanical Properties)

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19 pages, 2240 KiB

Open AccessArticle

Interactive Effects of Tillage Systems and Nitrogen Fertilizer Rates on the Performance of Mustard-Boro-aman Rice Cropping Systems under Conservation Agriculture Practices

by Nazmus Salahin, Md. Khairul Alam, Nirmal Chandra Shil, Abu Taher Mohammad Anwarul Islam Mondol, Md. Jahangir Alam, Mohamed I. Kobeasy, Ahmed Gaber and Sharif Ahmed

Agronomy 2022, 12(7), 1671; https://doi.org/10.3390/agronomy12071671 - 13 Jul 2022

Cited by 3 | Viewed by 2972

Abstract

In intensive crop production systems, sustainable agricultural development strives to find the balance between productivity and environmental impact. To reduce the N fertilizer-associated environmental risks of intensive cropping, sound agronomic and environmentally acceptable management practices are urgently needed. To attain high yields, improve soil health, and ensure economic return and N usage efficiency in conservation-based intensive agriculture, N management must be optimized, which has not yet been studied systematically in the mustard-boro rice-aman rice cropping pattern. During 2016/17, 2017/18, and 2018/19 cropping seasons in Bangladesh, cropping system experiments were conducted to investigate the interactive effects of tillage practices and nitrogen fertilizer rates on soil characteristics, crop productivity, and profitability under conservation agriculture (CA) systems. The trial featured two tillage systems: (i) conventional tillage (CT) and (ii) strip-tillage (ST). It also used three doses of N fertilizer: N₁: 75% of the recommended N fertilizer dose (RND); N₂: 100% of the RND; and N₃: 125% of the RND. Each crop’s experiment was set up in a split-plot design with three replications, with the main plot assigned tillage practices and the sub-plot assigned nitrogen fertilizer rates. For rice, neither the tillage systems nor the interactions between the tillage systems and N levels affected any of the growth parameters, yield, and yield components, but the N levels did. Across the tillage systems, the rice grain and straw yield were similar for the N levels of 100% RND and 125% RND, which were significantly higher than the N level of 75% RND. In mustard, the highest seed yield was recorded from the tillage system ST, with an N level of 125% RND, which was at par with the tillage system ST with 100% RND and CT with 125% RND. The highest system rice equivalent yield (SREY, 14.9 to 15.8 t ha⁻¹) was recorded from the tillage system ST, with an N level of 125% RND, which was at par with the same tillage system with an N level of 100% RND. The soil penetration and bulk density (BD) were higher for the CT than the ST, but soil organic matter (OM), total nitrogen (TN), phosphorus (P), potassium (K), and boron (B) content were higher for the tillage system ST than the CT. Across N levels, the tillage system CT had a 2–4% higher production cost than the ST. Total production cost increased as N levels increased across all tillage systems. The tillage system ST with an N level of 125% RND had the highest system gross return and net profit, which was at par with the same tillage system with 100% RND. This study suggested that farmers should apply slightly higher N for the mustard-boro-aman rice systems for the first couple of years when commencing CA; however, after a few years of consistent CA practice, the N rate may be reduced. Full article

(This article belongs to the Special Issue Tillage, Soil Management, and Field Traffic: Impact on Soil Physical and Mechanical Properties)

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11 pages, 1312 KiB

Open AccessArticle

Soil Penetration Resistance Influenced by Eucalypt Straw Management under Mechanized Harvesting

by Judyson de M. Oliveira, Cássio A. Tormena, Gérson R. dos Santos, Lincoln Zotarelli, Raphael B. A. Fernandes and Teógenes S. de Oliveira

Agronomy 2022, 12(6), 1482; https://doi.org/10.3390/agronomy12061482 - 20 Jun 2022

Cited by 1 | Viewed by 2026

Abstract

This study aimed to evaluate the impacts of mechanized harvesting and soil tillage on soil penetration resistance (PR), influenced by the eucalypt straw management under sandy clay Oxisol in Southern Brazil. The study was conducted in a eucalyptus production area under Oxisol in Paraná State, Brazil. The treatments consisted of two harvesting systems: harvester + forwarder (HF) and feller + skidder (FS) both applied in areas under coppicing and stand renewal eucalypt cultivation systems. For stand renewal areas, eucalypt straw was managed on the soil surface at levels of 100, 50, and 0% before soil tillage. PR and soil moisture measurements were made in points distributed in regular grid for all treatments. This grid also was used to evaluate the geospatial behavior of PR in the stand renewal areas. During the measuring of PR, the averages (± confidence interval) of soil moisture up to 0–0.60 m depth were 0.20 ± 0.01 and 0.24 ± 0.01 in coppicing and stand renewal areas, respectively. In areas under coppicing, the PR mean ± confidence interval at 0–0.05 m layer in HF (1.28 ± 0.24 MPa) was lower than in FS treatment (2.11 ± 0.44 MPa). However, the PR values were similar between treatments in stand renewal areas, regardless of the forest straw level on the soil surface. For both harvesting systems, there was a lack of spatial dependence of PR up to 0.40 m soil depth, indicating some physical and mechanical homogenization induced by the soil tillage in the layer. Eucalypt straw contributed to mitigating effects of harvest traffic on PR level in coppicing forest systems. However, different levels of eucalypt straw managed before soil tillage did not influence PR levels in stand renewal forest systems. Full article

(This article belongs to the Special Issue Tillage, Soil Management, and Field Traffic: Impact on Soil Physical and Mechanical Properties)

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