Spatial Variability of Soil Resistance to Penetration in No Tillage System

Cortez, Jorge Wilson; Matos, Weliton Perez da Silva; Arcoverde, Sálvio Napoleão Soares; Cavassini, Victor Hugo; Valente, Igor Queiroz Morães

doi:10.1590/1809-4430-eng.agric.v38n5p697-704/2018

Cited by 9 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Methodsmentioning

confidence: 99%

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

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…The nugget effect showed a value of zero for all the components and properties assessed. Nugget effect values close to zero indicate more accurate estimates using kriging (Cortez et al, 2018). This occurs because the lower the nugget effect in relation to the variogram baseline, the higher the continuity of the phenomenon and variance of the estimate, and the more reliable the estimate (Bottega et al, 2013;Cortez et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

Effect of Farming Systems on the Spatial Variability of Soil Physical Properties and Soybean Yield

Videira¹,

Silva²,

Pereira³

et al. 2019

JAS

View full text Add to dashboard Cite

In no-tillage (NT) and minimum tillage (MT) areas, spatial variability of soil physical properties may affect crop yield. The aim of this study was to assess the spatial distribution of soil physical properties, as well as the yield components and grain yield of soybean (GY), based on the mapping of areas under soil conservation farming systems. We assessed yield components, GY and the physical properties of an Oxisol, under NT and MT using the t-student test, and geostatistics to assess spatial variability. The largest population of NT plants showed no spatial dependence and did not influence GY, but the components related to plant height and soil properties differed between systems. From a spatial standpoint, the kriging maps demonstrated that mass of one thousand grains (MOG), total porosity (TP) and soil bulk density (BD) influenced GY under NT, whereas TP1 exerted the most influence under high soil moisture conditions and MT. The maps make it possible to assess the spatial distribution of soil physical properties and the influence on GY, making them an important tool for more accurate production planning in soil conservation systems.

show abstract

“…A RP é diretamente proporcional aos teores de argila, ou seja, quando se aplica pressão em solos argilosos, a transmissão da resistência à penetração é maior nas camadas mais profundas (DUARTE et al, 2020). A estrutura do solo influencia nos valores de RP, sendo assim, solos argilosos com estrutura adequada, tendem a apresentar melhores condições para o desenvolvimento radicular, com menores valores de DS e RP (CORTEZ et al, 2018). Espera-se que os maiores valores de COS estejam localizados nas camadas mais superficiais do solo e diminuam com o aumento da profundidade (DENARDIN et al, 2014), explicando os resultados apresentados na Figura 10.…”

Section: Discussionunclassified

VARIAÇÃO ESPACIAL DOS ATRIBUTOS FÍSICOS E ESTOQUES DE CARBONO DO SOLO EM PLANTIO DE Schizolobium amazonicum NA AMAZÔNIA

Ataides

Neves²,

Santos³

et al. 2022

NAT

View full text Add to dashboard Cite

Plantios de árvores proporcionam aumento dos estoques de carbono do solo, mas estudos envolvendo espécies nativas da Amazônia são incipientes. Objetivou-se avaliar a variação espacial dos atributos físicos e estoque de carbono orgânico no solo em plantio de paricá. Na área de estudo, coletaram-se amostras de solo nas profundidades de 0 a 20 cm e de 20 a 40 cm e os parâmetros analisados foram: textura do solo, macroporosidade, microporosidade, densidade aparente do solo, resistência mecânica do solo à penetração, teores e os estoques de carbono orgânico do solo. Interpolou-se os dados pelo inverso do quadrado da distância. A variação espacial dos atributos físicos do solo no plantio foi influenciada pela textura. Houve baixa amplitude da variação espacial dos teores e estoques de carbono orgânico do solo. O plantio de paricá apresentou eficiência na fixação de carbono no solo em profundidade. Palavras-chave: silvicultura; sequestro de carbono; física do solo; mudança climática. Spatial variation of physical attributes and soil carbon stocks in a Schizolobium amazonicum plantation in the amazon ABSTRACT: Tree plantations provide an increase in soil carbon stocks, but studies involving native Amazonian species are incipient. The objective was to evaluate the spatial variation of physical attributes and soil organic carbon stock in a paricá plantation. In the study area, soil samples were collected at depths of 0 to 20 cm and 20 to 40 cm and the parameters analyzed were: soil texture, macroporosity, microporosity, soil bulk density, mechanical soil resistance to penetration, and soil organic carbon content and stocks. The data were interpolated by the inverse of the square of the distance. The spatial variation of soil physical attributes at planting was influenced by texture. There was a low range of spatial variation in soil organic carbon content and stocks. Paricá planting was efficient in fixing soil carbon at depth. Keywords: silviculture; carbon sequestration; soil physics; climate change.

show abstract

Spatial Variability of Soil Resistance to Penetration in No Tillage System

Cited by 9 publications

References 22 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

Effect of Farming Systems on the Spatial Variability of Soil Physical Properties and Soybean Yield

VARIAÇÃO ESPACIAL DOS ATRIBUTOS FÍSICOS E ESTOQUES DE CARBONO DO SOLO EM PLANTIO DE Schizolobium amazonicum NA AMAZÔNIA

Contact Info

Product

Resources

About