Resistência do solo a penetração em diferentes profundidades de subsolagem

Gonçalves, Saulo Boldrini; Lopes, Eduardo da Silva; Fiedler, Nilton César; Cavalieri-Polizeli, Karina Maria Vieira; Stahl, James

doi:10.5935/2318-7670.v05n03a12

Cited by 6 publications

(3 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Soil resistance to penetration for all studied depths and management systems ranged from 0.58 to 1.5 MPa, below the established critical value of 2 Mpa, indicating favorable root development conditions (GONÇALVES et al, 2017). Concerning all management systems, a lack of statistically significant differences for the evaluated depths was observed only for the BSL management.…”

Section: Discussionmentioning

confidence: 74%

Physical Soil Attributes in Different Eucalyptus Crop Management Systems in Western Mato Grosso, Brazil

Florentim

Correa

Martins

et al. 2020

View full text Add to dashboard Cite

Physical soil attributes in different eucalyptus crop management systems in western Mato Grosso, Brazil. The aim of this study was to determine the effect of four soil management systems on the physical attributes of an Oxisol for Eucalyptus crops in western Mato Grosso, Brazil. The management systems are differentiated by the soil preparation form during the implantation and initial forest establishment phases, namely a conventional system (plowing, harrowing and subsoiling for preparation and harrows for weed control after planting ) and a conservationist system (pasture desiccation, subsoiling, herbicide weed control and cover crop), with added differences in the eucalyptus fertilizer supply manner (haul and furrow). Nine soil layers were sampled continuously for each management system in between the sowing lines using 100 cm³ volumetric rings (0.05 m in diameter and height), totaling a studied layer of 0.45 m. The following variables were evaluated: total pore volume, microporosity, macroporosity, density and soil resistance to penetration. The different managements did not lead to significant differences for the studied attributes two years after forest establishment, with only a small depth effect observed. The attribute values are within the appropriate limits for eucalyptus crop development, indicating good soil quality under the eucalyptus forest for the study conditions.Keywords: Cover crop, Eucalyptus, soil management, soil penetration resistance.

show abstract

Section: Discussionmentioning

confidence: 74%

Physical Soil Attributes in Different Eucalyptus Crop Management Systems in Western Mato Grosso, Brazil

Florentim

Correa

Martins

et al. 2020

View full text Add to dashboard Cite

show abstract

“…It alters the density, macroporosity, microporosity, and resistance to penetration (Silva et al, 2011a). The soil preparation techniques aim to maximize the growth of the root system through more or less localized soil tillage, facilitating the absorption of water and nutrients, also eliminating unwanted plants near the seedlings (Gonçalves et al, 2017).…”

Section: -5mentioning

confidence: 99%

Initial Development of Acrocarpus fraxinifolius in Function of Soil Preparation and Phosphate Mineral Fertilization

et al. 2022

View full text Add to dashboard Cite

Acrocarpus fraxinifolius stands out due to its uses in the timber industry and rapid growth. However, information is scarce regarding its fertilization. We aim to understand how soil preparation and phosphorus doses affect A. fraxinifolius initial development. The experimental design used was a randomized block design in a 2 x 5 factorial scheme, consisting of two types of soil tillage (minimum and conventional) and five doses of phosphorus (P) (0, 50, 100, 150, and 200 g of simple superphosphate) with four replications, and plots formed by two plants. The measurement occurs at 30 and 210 days after planting, assessing the height and diameter at the stem height. Initially, the minimum tillage provided had a higher average height and diameter. However, conventional tillage, acidity correction, and fertilization with 108 g of simple superphosphate per plant resulted in Acrocarpus fraxinifolius plants with better growth at 210 days after planting.

show abstract

“…Additionally, the geospatial evaluation of PR can allow the identification of compacted sites for specific management operations [23,24]. Such detailed PR information can improve soil physical quality evaluation in mechanized planted forest areas [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Soil Penetration Resistance Influenced by Eucalypt Straw Management under Mechanized Harvesting

et al. 2022

View full text Add to dashboard Cite

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.

show abstract

Resistência do solo a penetração em diferentes profundidades de subsolagem

Cited by 6 publications

References 21 publications

Physical Soil Attributes in Different Eucalyptus Crop Management Systems in Western Mato Grosso, Brazil

Physical Soil Attributes in Different Eucalyptus Crop Management Systems in Western Mato Grosso, Brazil

Initial Development of Acrocarpus fraxinifolius in Function of Soil Preparation and Phosphate Mineral Fertilization

Soil Penetration Resistance Influenced by Eucalypt Straw Management under Mechanized Harvesting

Contact Info

Product

Resources

About