Variabilidade da produtividade da soja em função de atributos físicos de um latossolo vermelho distroférrico sob plantio direto

Filho, Gilberto Rosa; Carvalho, Morel de Passos e; Andreotti, Marcelo; Montanari, Rafael; Binotti, Flávio Ferreira da Silva; Gioia, Máila Terra

doi:10.1590/s0100-06832009000200006

Cited by 27 publications

(6 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Despite the similar GY between NT and MT (Table 1), yields were higher than those reported by Rosa Filho et al (2009), who assessed NT in an Oxisol, and similar to those observed by Girardello et al (2014), who also found no GY difference in Oxisol under NT and a scarified area. The use of scarifiers in planting systems does not always increase soybean yield (Cortez et al, 2017).…”

Section: Resultssupporting

confidence: 81%

“…However, compacted and subcompacted layers emerge as a result of fewer soil operations (Franchini et al, 2011), making it a limiting factor in achieving maximum crop yield (Araújo et al, 2004). With the higher BD, penetration resistance (PR) and microporosity (MI) increase, causing a decline in TP, macroporosity (MA) and hydraulic conductivity (Rosa Filho et al, 2009). Scarification has been adopted to reverse this process, based on the principles of NT (Bertolini & Gamero, 2010;Nunes et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Videira¹,

Silva²,

Pereira³

et al. 2019

JAS

Self Cite

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

Section: Resultssupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

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

Videira¹,

Silva²,

Pereira³

et al. 2019

JAS

Self Cite

View full text Add to dashboard Cite

show abstract

“…As áreas de SPD no entorno dos fragmentos de Mata Atlântica apresentaram maiores valores de Ds, variando de 1,03 a 1,19 Mg m -3 , sendo diferentes dos pontos mais internos dos fragmentos (MR e CF) em todas as camadas avaliadas (Tabela 5). Os maiores valores de Ds em SPD, mesmo com o menor tráfego de máquinas agrícolas, podem ter ocorrido principalmente pela textura mais argilosa, aliada à não adoção de um sistema mais diversificado de culturas (ROSA FILHO et al, 2009), porém Reis et al (2016) verificaram que os valores de Ds diminuem após os sete anos de adoção do sistema. Rosset et al (2014a), no trabalho que avaliou cronossequência de SPD com seis, 14 e 22 anos de implantação na mesma região deste estudo evidenciaram redução de Ds com o aumento do tempo de implantação, em todas as camadas avaliadas.…”

Section: Resultsunclassified

Estoque De Carbono E Agregação Do Solo Sob Fragmentos Florestais Nos Biomas Mata Atlântica E Cerrado

Ozório

Rosset

Schiavo

et al. 2020

Rev. Bras. Ciênc. Ambient. (Online)

View full text Add to dashboard Cite

Estudaram-se o estoque de carbono (EstC) e a agregação do solo no interior eno entorno de fragmentos florestais dos biomas Mata Atlântica (MA) e Cerrado(CE). Foram coletadas amostras de solo em quatro fragmentos florestais, doisna MA e dois no CE, nos quais foram amostrados três pontos internos: borda(BO), metade do raio (MR) e centro (CF), além de um ponto no entorno;sistema plantio direto (SPD) e pastagem permanente (PP) na MA e no CE,respectivamente. Determinaram-se o carbono orgânico total (COT), a densidadedo solo (Ds), com cálculos de EstC, e a estabilidade de agregados. Na MA, a Dschegou a 1,19 Mg m-3. Maiores teores de COT e EstC foram verificados no CF,havendo redução do EstC no CF em pontos mais periféricos. Verificou-se menorestabilidade estrutural do solo nas áreas de SPD do entorno. As áreas de PP noentorno dos fragmentos do CE apresentaram maior Ds. Os teores de COT evalores de EstC foram heterogêneos entre os pontos internos dos fragmentosde CE. Nos fragmentos de CE, as variáveis estruturais não diferiram das áreasde PP do entorno. O COT e o EstC indicam o ponto CF com maior estado deconservação nos fragmentos de MA. No CE, as áreas de PP apresentaram omesmo potencial de acúmulo de carbono em camadas subsuperficiais emrelação aos fragmentos. A fragmentação florestal, nos dois biomas estudados,modificou os atributos físicos do solo, além de ter influenciado nos padrões deestocagem de carbono no interior dos fragmentos.

show abstract

“…According to Rosa (2009), such alteration in soil structure leads to reduction in aeration and water infiltration in the soil, due to the decrease in macroporosity. On the other hand, the increase in microporosity favors the retention of the small volume of water which percolates in the soil profile.…”

Section: Discussionmentioning

confidence: 99%

Organic carbon dynamics in interrows of Vitis vinifera with different years of soil use and management

Santos

Levien

Mazurana

et al. 2021

RSD

View full text Add to dashboard Cite

This study aimed to evaluate the effects of soil use and management on organic carbon stocks in the interrows of Vitis vinifera with different years of cultivation. A vineyard located in Rio Grande do Sul state, with 4, 9 and 16 years of management, was evaluated. Soil samples from different layers, 0.0-0.10, 0.10-0.20, 0.20-0.30, 0.30-0.40, 0.40-0.50 and 0.50-0.60 m, were collected on wheel tracks, between wheel tracks and under the planting rows. As a reference, samples were collected in native grassland of the region. Organic matter content, bulk density and soil porosity were evaluated. Carbon stock was determined according to the correction of the sampled thickness. The results were subjected to analysis of variance and means were compared by Tukey test at 0.05 probability level. Soil management caused alterations in its structure and organic matter content, observed mainly in the first 30 cm, regardless of the area studied. Highest values of bulk density were observed on the tractor wheel tracks, followed by under the planting row and between wheel tracks. Alteration in soil cover for vineyard planting led to a reduction in the carbon stock, compared to the native grassland. The area under management for 4 years showed higher carbon stocks between the wheel tracks, whereas the areas under 9 and 16 years of management showed highest values in the wheel tracks.

show abstract

Variabilidade da produtividade da soja em função de atributos físicos de um latossolo vermelho distroférrico sob plantio direto

Cited by 27 publications

References 19 publications

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

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

Estoque De Carbono E Agregação Do Solo Sob Fragmentos Florestais Nos Biomas Mata Atlântica E Cerrado

Organic carbon dynamics in interrows of Vitis vinifera with different years of soil use and management

Contact Info

Product

Resources

About