Resistência à penetração, eficiência de escarificadores mecânicos e produtividade da soja em Latossolo argiloso manejado sob plantio direto de longa duração

Girardello, Vitor Caduro; Amado, Telmo Jorge Carneiro; Santi, Antônio Luis; Cherubin, Maurício Roberto; Kunz, Junior; Teixeira, Tiago de Gregori

doi:10.1590/s0100-06832014000400020

Cited by 41 publications

(41 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The data demonstrated that the use of mechanical scarifiers, when compared to no-tillage did not alter soybean productivity. This result can be corroborated by Girardello et al (2014), who did not find an increase in soybean yield due to mechanical scarification. The authors have justified this absence with the rustic jas.ccsenet.org Journal of Agricultural Science Vol.…”

Section: Physical Soil Propertiesmentioning

confidence: 56%

Soybean Yield, Soil Porosity and Soil Penetration Resistance under Mechanical Scarification in No-Tillage System

Seidel¹,

Schneider²,

Sustakowski³

et al. 2018

JAS

View full text Add to dashboard Cite

Technological development has triggered a steady increase in Brazilian agricultural production, but also brought problems due to the excessive land use. The lack of care with proper management practices has led to soil physical degradation, mainly the formation of impermeable layers, which can lead to a reverse effect, a reduction in crop yield. It can be potentiated in silage production and with the lack of cover crops. To minimize the negative impacts of soil compaction, scarification is recommended, but its effectiveness has been questioned in no-tillage system. Thus, an experimental field was implemented in Brazil in 2015-2016 season, to evaluate the mechanical scarification on soybean production in succession to silage and grain corn intercropped with Brachiaria (Urochloa ruziziensis) as well as the physical properties of the soil. The experimental layout was a complete randomized block design with four replications. The plots were composed of second crop maize (autumn) intercropped with brachiaria, in two systems: silage and dry grains. The subplots were composed of three management system: no-tillage, reduced tillage cultivation with Terrus scarifier and Fox scarifier. Corn harvesting systems as well the scarifiers use did not affect soybean production and its yield components. The use of scarifiers reduced soil coverage, plant population, and soil penetration resistance. The data suggest that there was no persistence in the benefits presented by scarification. Soybean was able to break through the compacted layers, even above the critical level, corroborating with the hypothesis that the use of scarifiers does not bring benefits in no-tillage system.

show abstract

Section: Physical Soil Propertiesmentioning

confidence: 56%

Soybean Yield, Soil Porosity and Soil Penetration Resistance under Mechanical Scarification in No-Tillage System

Seidel¹,

Schneider²,

Sustakowski³

et al. 2018

JAS

View full text Add to dashboard Cite

show abstract

“…Root expansion mechanical impedance will interfere with water and nutrients absorption, with a consequent soybean yield decrease (Girardello et al 2014). Thus, there is soil moisture reduction for irrigation management, according to the LLWR amplitude, due to low O 2 diffusion rate in the soil, as well as due to root expansion mechanical impedance.…”

Section: Resultsmentioning

confidence: 99%

Water availability to soybean crop as a function of the least limiting water range and evapotranspiration1

Rodrigues

Casaroli

Evangelista

et al. 2017

Pesqui. Agropecu. Trop.

View full text Add to dashboard Cite

Irrigation management aimed at optimal production has been based only on the water factor. However, in addition to the water potential of the soil, factors such as soil penetration resistance and soil O2 diffusion rate also affect plant growth and interfere with water absorption, even if moisture is within the available water range. This study aimed at quantifying the least limiting water range and demonstrating its potential in soil and water management in irrigated agriculture. In order to determine the least limiting water range, soil water retention curves and soil resistance to penetration were determined from undisturbed soil samples. The sequential water balance and the reference, crop and real evapotranspiration were determined for a soybean crop season. Soil aeration was the least limiting water range upper limit for soils with bulk density greater than 1.33 Mg m-3, whereas soil resistance to penetration was the lower limit for bulk density higher than 1.43 Mg m-3. The bulk density of the soil studied was 1.35 Mg m-3, indicating 0.37 m3 m-3 of water availability, based on the least limiting water range, which is sufficient to supply the crop evapotranspiration. Irrigation management based on the least limiting water range is more efficient and complete than that based only on available water.

show abstract

“…Na camada de 0,20-0,30 m a maioria das repetições no sistema plantio direto apresentaram valores inferiores a 1,0 MPa, enquanto que no sistema plantio convencional a maioria das repetições apresentaram valores variando de 1,0 a 1,5 MPa. Deste modo a resistência a penetração em ambos os sistemas de manejo foram classificadas como baixa/moderada de acordo com a classificação apresentada por Girardello et al (2014).…”

Section: Resistência a Penetração (Rp)unclassified

Caracterização Física E Química De Solo Em Sistemas De Manejo Plantio Direto E Convencional

Santana¹,

Lima²,

Komatsu³

et al. 2018

Enci Bio

View full text Add to dashboard Cite

Resistência à penetração, eficiência de escarificadores mecânicos e produtividade da soja em Latossolo argiloso manejado sob plantio direto de longa duração

Cited by 41 publications

References 33 publications

Soybean Yield, Soil Porosity and Soil Penetration Resistance under Mechanical Scarification in No-Tillage System

Soybean Yield, Soil Porosity and Soil Penetration Resistance under Mechanical Scarification in No-Tillage System

Water availability to soybean crop as a function of the least limiting water range and evapotranspiration1

Caracterização Física E Química De Solo Em Sistemas De Manejo Plantio Direto E Convencional

Contact Info

Product

Resources

About