Atributos físicos do solo em diferentes condições de cobertura vegetal em área de plantio direto

Rossetti, Karina de Vares; Andrioli, Itamar; Centurion, José Frederico; Matías, Sammy Sidney Rocha; Nóbrega, Júlio César Azevedo

doi:10.5039/agraria.v7i3a1681

Cited by 14 publications

(12 citation statements)

References 16 publications

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“…Rossetti et al (2012) report that using agricultural implements in places without or with low vegetation cover directly impacts the soil's physical attributes by decreasing its porosity. In turn, these structural changes promote changes in the soil's physical attributes, including its porosity, density and resistance to root penetration (Silva et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Impact of Management on the Physical Attributes of a Dystrophic Yellow Latosol

Fárias¹,

Feitosa²,

Rodrigues³

et al. 2017

JAS

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Soil use and management systems aim to create conditions that are favorable to crop growth. The hypothesis is that areas subject to intensive use of agricultural machinery and animal trampling tend to have a soil structure that is altered by aggregate fragmentation, which causes soil compaction and consequently decreases the soil's physical and hydraulic properties. The aim of this study was to assess and compare the physical and hydraulic parameters of a dystrophic yellow latosol in an area of Cerrado in the municipality of Chapadinha, Maranhão, Brazil under different use and management systems. The following five use and management systems were studied with five replicates: native forest (control), slash-and-burn agriculture, grassland, no-till crop production and conventional tillage. Data analysis was performed using a completely randomized experimental design. The soil's density, macroporosity, microporosity, total porosity, hydraulic conductivity, infiltration, water retention curve, penetration resistance and Soil quality assessment index (S index) were assessed for all management systems. The soil use and management systems were found to have a significant effect on the penetration resistance and the water infiltration rate. The native forest and slash-and-burn agriculture areas provided the highest soil water infiltration rates and the lowest soil penetration resistance. A multivariate analysis identified the variables associated with each soil use and management system. The slash-and-burn agriculture area had the highest S index, which means it provided soil of the best physical quality.

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Section: Introductionmentioning

confidence: 99%

Impact of Management on the Physical Attributes of a Dystrophic Yellow Latosol

Fárias¹,

Feitosa²,

Rodrigues³

et al. 2017

JAS

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“…The index of sensitivity of VM, Ma, Mi, TP, WAD, and GAD were lower than the observed in NA (1.0), which is the natural soil condition before any anthropic action. The agricultural activities in the cropping areas (SPC20, NTS5 and NTS17) caused negative changes to the soil structure, resulting in reduced total porosity, macroporosity, pore continuity, moisture and the size of the soil aggregates (Loss et al, 2012;Rossetti et al, 2012;Santos et al, 2014;Bai et al, 2018;Ordoñez-Morales et al, 2019). The main changes to the IS occur in the upper soil layer, for all physical attributes evaluated in CTS20, NTS5 and NTS17 areas when compared to the Cerrado NA.…”

Section: Soil Aggregate Stabilitymentioning

confidence: 98%

Soil Physical Attributes in Long-Term Soil Management Systems (Tillage and No-till)

Silva¹,

Torres²,

Costa³

et al. 2020

JAS

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The period of implantation of the no-tillage system (NTS) is a fundamental factor to the dimension of the changes that occur to the soil's physical, chemical and biological attributes. Thus, the objective of this study was to evaluate the soil changes to the physical attributes and correlate the results to the soil organic matter in areas of different long-term soil management. The study was set as a completely randomised design, in a 4 × 4 factorial scheme, with four management systems [5 years NTS (NTS5); 17 years NTS (NTS17); conventional tillage system for 20 years (CTS20); native area (NA)], and four soil depths (0-0.05, 0.05-0.1, 0.1-0.2, 0.2-0.4 m), with five repetitions. Soil mechanical resistance to root penetration (RP), bulk density (SD), volumetric moisture (VM), macro (Ma), microporosity (Mi) and total porosity (TP), and the aggregation parameters were evaluated. The CTS20, NTS5 and NTS17 presented superior SD in the most superficial soil layers, which was not yet causing resistance to root development. The SD was the only physical attribute that correlated significantly with all the other soil attributes evaluated, indicating the importance of such attribute to evaluate soil quality to crops. The soil physical attributes found in the Cerrado native area followed the sequence of similarities: no-tillage system with 17 years (most similar), with five years and the conventional tillage system (less similar). The changes caused by the anthropic activity in the soil's physical attributes are more pronounced and perceptible in soil depths up to 0.2 m.

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“…and Crotalaria (Crotalaria sp. ), both with high potential of dry mass production and nutrient cycling (Pacheco et al, 2011;Cunha et al, 2012;Rossetti et al, 2012;Cherubin et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Quality of Soil in the function of biological fertilization and plant covering

Ascari¹,

AraÃojo²,

Mendes³

et al. 2018

Afr. J. Agric. Res.

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The yield of soybean was influenced by the chemical and microbiological properties of the soil, which was favored by management techniques that promote improvement in soil quality. The objective of this study was to evaluate soybean yield, chemical and microbiological quality of the soil as a function of biological fertilization and soil cover conditions. The experiment was conducted in both crops seasons 2015/16 and 2016/17 with experimental design in randomized blocks, with the agronomic characteristics of the soybean analyzed as a function of the factors of biological fertilization and soil cover conditions, as well as the chemical and microbiological indicators of the soil, besides the two factors mentioned earlier, fragment of forest. It was observed higher height of plants, pods with three grains, leaf area and yield of soybean cultivated on Crotalaria ochroleuca, followed by Pennisetum glaucum. Biological fertilizer, P. glaucum and C. ochroleuca promoted increases in the fertility of soil cultivated with soybean, mainly potassium, and contributed to reduce carbon losses, indicated by lower basal respiration and soil metabolic quotient. Based on the results, we conclude that the soybean presented highest grain yield with C. ochroleuca, and the biological fertilization and cover plants increased the chemical and microbiological quality of the soil. These techniques can be implemented in the soybean farming system.

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Atributos físicos do solo em diferentes condições de cobertura vegetal em área de plantio direto

Cited by 14 publications

References 16 publications

Impact of Management on the Physical Attributes of a Dystrophic Yellow Latosol

Impact of Management on the Physical Attributes of a Dystrophic Yellow Latosol

Soil Physical Attributes in Long-Term Soil Management Systems (Tillage and No-till)

Quality of Soil in the function of biological fertilization and plant covering

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