Spatialization of Soil Resistance to Penetration for Localized Management by Precision Agriculture Tools

Cortez, Jorge Wilson; Cavassini, Victor Hugo; Motomiya, Anamari Viegas de Araújo; Orlando, Roberto Carlos; Valente, Igor Queiroz Morães

doi:10.1590/1809-4430-eng.agric.v38n5p690-696/2018

Cited by 5 publications

(3 citation statements)

References 23 publications

(24 reference statements)

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“…The soil penetration resistance test was performed in each experimental unit using the PenetroLOG-PLG 1020 field penetrometer, with electronic capability for data acquisition (ASABE, 2006), to determine the mean PR and maximum PR stratified in the 0.00-0.10, 0.10-0.20, 0.20-0.30, 0.30-0.40 m-deep layers (Cortez et al, 2018a;Cortez et al, 2018b). Five sampling points were selected in each of the following the positions: sugarcane row, between the tractor wheel tracks and in the tractor wheel tracks.…”

Section: Methodsmentioning

confidence: 99%

Soil Physical Attributes and Production Components of Sugarcane Cultivars in Conservationist Tillage Systems

et al. 2019

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Machine traffic and conventional tillage can cause structural degradation of the soil, affecting the physical attributes and, consequently, the production and longevity of the sugarcane field. The objective of this study was to evaluate the production components of sugarcane cultivars (RB965902, RB985476, RB966928, RB855156, RB975201, RB975242, RB036066 and RB855536) and physical attributes of a Dystroferric Red Latosol (Oxisol) under no-tillage and reduced-tillage systems. The experiment was conducted using a completely randomized experimental design in an 8 × 2 factorial arrangement, with four replicates. The soil attributes evaluated were density, total porosity, macroporosity, microporosity and penetration resistance. The production components evaluated were stalk length and diameter, number of tillers (NT), tons of cane per hectare (TCH), sucrose content (Pol), tons of sucrose per hectare (TPH), soluble solids content (Brix), total recoverable sugars (TRS) and plant fiber. Cultivars RB965902, RB966928, RB855156 and RB985476 have productivity and technological attributes that are superior to the other cultivars, whereas these are lower for RB036066 in both soil tillage systems. Cultivars RB966928, RB855156, RB975242 and RB855536 exhibited higher TCH and TPH in the no-tillage system, and all cultivars displayed equal or higher performances than those observed in the reduced-tillage system. In the no-tillage system, which exhibits lower penetration resistance values between wheel tracks and in the subsurface layer of the planting row (0.20-0.40 m), cultivars RB985476 and RB975242 had a higher NT, and RB855156 had higher stalk lengths and NT.

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Section: Methodsmentioning

confidence: 99%

Soil Physical Attributes and Production Components of Sugarcane Cultivars in Conservationist Tillage Systems

et al. 2019

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“…The highest average PR value for the 70 sampling points (pedoform A and B) was 3.345 MPa. According to Cortez et al (2018), Seidel et al (2018), and Leiva et al (2019), high PR values are related to soil management, and crops in no-tillage systems need management strategies that consider the state of soil compaction (BURR-HERSEY et al, 2017). The Type A slope unit (concave; Figures 1 and 2b) showed the highest average PR value (3.718 MPa) and highest variation of the standard deviation along the profile, indicating the high vertical variability of the data.…”

Section: Resultsmentioning

confidence: 99%

Multifractal Analysis of Soil Resistance to Penetration in Different Pedoforms

Leiva

Silva

et al. 2021

Rev. Caatinga

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Soils are highly variable across landscapes, which can be assessed and characterized according to scale, as well as fractal and multifractal concepts of scale. Thus, the objective of this study was to analyze the multifractality of the penetration resistance (PR) of vertical profiles from different slope forms (concave and convex). The experimental plot incorporated 44.75 ha, and the PR was measured at 70 sampling points in the 0-0.6 m layer, distributed in concave (Type A: 38 sampling points) and convex pedoforms (Type B: 32 sampling points). Data analysis was performed using the PR value (every 0.01 m depth) for each of the sampling points (PRmean), and their respective maximum (Prmaximun) and minimum (PRminimum) values. Multifractal analysis was performed to assess the changes in the structure, heterogeneity, and uniformity of the vertical profiles according to the scale, characterizing the partition function, generalized dimension, and singularity spectrum. The multifractal parameters of the generalized dimension and singularity spectrum demonstrated greater homogeneity and uniformity in the vertical PR profiles of pedoform B (convex) compared to those of pedoform A (concave). The minimum PR values in pedoform A (PRminimum) showed the greatest scale heterogeneity, indicating that in terms of soil management, it is more relevant to monitor the minimum values than the maximum values. The fractal analysis allowed us to describe the heterogeneity of the data on scales not evaluated by conventional analysis methods, with high potential for use in precision agriculture and the delimitation of specific management zones.

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“…However, variables with strong spatial dependence can also be influenced by intrinsic soil attributes, e.g., texture, in addition to being altered by different soil uses and management and agricultural crops, which contribute to a weak spatial dependence [43]. The degree of spatial dependence was considered moderate or strong for the layers in the three soil classes studied (oxisol, argisol, and cambisol), as observed by Cortez et al [72] in a latosol (oxisol), by Souza et al [58] in an argisol, and by Campos et al [73] in a cambisol.…”

Section: Soil Physical and Chemical Attributesmentioning

confidence: 86%

Soil Attributes and Their Interrelationships with Resistance to Root Penetration and Water Infiltration in Areas with Different Land Uses in the Apodi Plateau, Semiarid Region of Brazil

Dias,

Portela,

Gondim

et al. 2023

Agriculture

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Studies on soils and their interrelationships with land use in the context of the semi-arid region of Brazil are still scarce, even though they have the potential to assist in understanding the use and management of soil and agricultural crops. From this perspective, this study investigated four land uses in different locations of the Apodi Plateau, an elevated area in semi-arid region of northeastern Brazil. The different soils were analyzed for their resistance to root penetration, water infiltration, inorganic fractions, soil density, total porosity, potential of hydrogen, electrical conductivity, total organic carbon, potential acidity, and sum of bases. The soil resistance to root penetration and water infiltration were determined in the field. The results obtained were interpreted using multivariate and geostatistical analysis. The resistance data were subjected to the Shapiro–Wilk test at 5% of probability and expressed in maps, whereas infiltration data curves were constructed to estimate the amount of infiltrated water at the different time intervals. The textural classification was an important factor for the analysis of soil resistance to root penetration (Q) and the infiltration rate, being evidenced in the cluster analysis and allowing the formation of two groups, one for the surface layers of the areas and another for the subsurface layers, with the inorganic sand and clay fractions standing out with the greatest dissimilarity. The establishment of conservation practices for soil management is suggested to correct the pore space problems and the degradation of agroecosystems in areas with soils whose conditions are similar to the ones of this study.

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Spatialization of Soil Resistance to Penetration for Localized Management by Precision Agriculture Tools

Cited by 5 publications

References 23 publications

Soil Physical Attributes and Production Components of Sugarcane Cultivars in Conservationist Tillage Systems

Soil Physical Attributes and Production Components of Sugarcane Cultivars in Conservationist Tillage Systems

Multifractal Analysis of Soil Resistance to Penetration in Different Pedoforms

Soil Attributes and Their Interrelationships with Resistance to Root Penetration and Water Infiltration in Areas with Different Land Uses in the Apodi Plateau, Semiarid Region of Brazil

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