Effects on some soil qualities in central Italy following the passage of four wheel drive tractor fitted with single and dual tires

Servadio, P.; Marsili, A.; Vignozzi, Nadia; Pellegrini, S.; Pagliai, M.

doi:10.1016/j.still.2004.09.018

Cited by 42 publications

(27 citation statements)

References 30 publications

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“…Wood et al (1993), Seixas et al (2003), Silva (2003), Czyz (2004) e Servadio et al (2005) verificaram maior degradação da estrutura do solo com o aumento do número de passadas.…”

Section: Resultsunclassified

Camada de resíduos florestais e pressão de preconsolidação de dois latossolos

Silva

Souza

Junior³

et al. 2007

Pesq. agropec. bras.

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O objetivo deste trabalho foi avaliar o efeito da camada de resíduos da colheita sobre a pressão de preconsolidação, com o uso dos modelos de capacidade de suporte de carga de um Latossolo Amarelo e de um Latossolo Vermelho. Foram coletadas 20 amostras indeformadas, em cada tipo de solo, à profundidade de 10-13 cm, na linha de tráfego do "forwarder", depois de este ter trafegado duas e oito vezes em três condições de disposição de resíduo: sobre a galhada (G); sobre a galhada mais a casca (GC); sobre o solo sem resíduo (SR); e onde não houve tráfego do "forwarder" (ST). As amostras indeformadas foram utilizadas nos ensaios de compressão uniaxial. Determinaram-se, também, textura, matéria orgânica e densidade de partículas dos solos. O tráfego sobre os resíduos florestais atenuou a compactação nos solos estudados, principalmente na condição de galhada + casca (GC), onde a pior situação foi a condição de solo limpo (SR) nos dois tipos de solos. Quando a intensidade de tráfego foi aumentada de duas para oito vezes, houve maior compactação do solo.

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“…Wood et al (1993), Seixas et al (2003), Silva (2003), Czyz (2004) e Servadio et al (2005) verificaram maior degradação da estrutura do solo com o aumento do número de passadas.…”

Section: Resultsunclassified

Camada de resíduos florestais e pressão de preconsolidação de dois latossolos

Silva

Souza

Junior³

et al. 2007

Pesq. agropec. bras.

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“…7, No. 4;2015 Otherwise, strong correlations between normal stress and penetration resistance on one part and between penetration resistance and macroporosity on the other part were also be observed by Servadio, Marsili, Vignozzi, Pellegrini, and Pagliai (2005).…”

Section: Hydrological Aspectsmentioning

confidence: 89%

Impact of Normal and Shear Stresses Due to Wheel Slip on Hydrological Properties of an Agricultural Clay Loam: Experimental and New Computerized Approach

Battiato¹,

Alaoui²,

Diserens³

2015

JAS

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The main purpose of this study was to evaluate the effect that mechanical stresses acting under the slipping driving wheels of agricultural equipment have on the soil's pore system and water flow process (surface runoff generation during extreme event). The field experiment simulated low slip (1%) and high slip (27%) on a clay loam. The stress on the soil surface and changes in the amounts of water flowing from macropores were simulated using the Tires/tracks And Soil Compaction (TASC) tool and the MACRO model, respectively. Taking a 65 kW tractor on a clay loam as a reference, results showed that an increase in slip of the rear wheels from 1% to 27% caused normal stress to increase from 90.6 kPa to 104.4 kPa at the topsoil level, and the maximum shear contact stress to rise drastically from 6.0 kPa to 61.6 kPa. At 27% slip, topsoil was sheared and displaced over a distance of 0.35 m. Excessive normal and shear stress values with high slip caused severe reductions of the soil's macroporosity, saturated hydraulic conductivity, and water quantities flowing from topsoil macropores. Assuming that, under conditions of intense rainfall on sloping land, a loss in vertical water flow would mean an increase in surface runoff, we calculated that a rainfall intensity of 100 mm h -1 and a rainfall duration of 1 h would increase the runoff coefficient to 0.79 at low slip and to 1.00 at high slip, indicating that 100% of rainwater would be transformed into surface runoff at high slip. We expect that these effects have a significant impact on soil erosion and floods in steeper terrain (slope > 15°) and across larger surface areas (> 16 m 2 ) than those included in our study.

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“…The changes in the SD of the ERL due to machinery traffic (T4) resulted in a reduction of 34.5% in the macroporosity in the layer 0.0-0.1 m. In the layers 0.1-0.2 and 0.2-0.3 m, the volume of macropores in the ERL of the treatments was similar, regardless of the number of passes and weight of the tractors. Servadio et al (2005) found different results, with decreasing macroporosity in these layers with the tractor passes compared to areas without traffic.…”

Section: Resultsmentioning

confidence: 84%

Use of S-Index as a Structural Quality Indicator for Compacted Latosols Cultivated With Maize

Rossetti

Centurion

2018

Rev. Caatinga

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-One way to prevent soil degradation is to monitor its structural quality through physical attributes and indicators. Thus, the objective of this work was to identify parameters that can be used together with the S-index to assess the soil structural quality of Latosols-Distrophic Red Latosol (DRL) and Eutroferric Red Latosol (ERL)-cultivated with maize after traffic-induced compaction by agricultural machinery. The experiment was conducted in a randomized block design in split-plots, with five treatments and four replications for each soil class. The treatments were: T0 = conventional tillage without additional compaction; T1, T2 and T3 = one pass of a 4, 7 and 10-Mg tractor, respectively; T4 = three passes of a 10-Mg tractor. The water retention curve, density, porosity and S-index of the soil layers 0-0.1, 0.1-0.2 and 0.2-0.3 m were evaluated. The DRL presented similar S-index (0.035 to 0.037) in the T0, T1 and T2, and these S-index were connected to soil macroporosity. Most S-index of the ERL were above 0.035, except for T4 due to its higher soil density. The S-index can be used as a complementary parameter for maize height and soil macroporosity to evaluate the structural quality of DRL.Keywords: Agricultural machinery traffic. Soil management. Soil physical-water attributes. ÍNDICE S COMO INDICADOR DA QUALIDADE ESTRUTURAL EM LATOSSOLOS COMPACTADOS CULTIVADOS COM MILHORESUMO -Uma maneira de prevenir a degradação do solo é monitorar a sua qualidade estrutural por meio de atributos e indicadores físicos. Dessa forma, objetivou-se com este trabalho verificar quais parâmetros podem ser utilizados junto com o índice S para a avaliação da qualidade estrutural do solo, após a compactação induzida por tráfego de máquinas agrícolas em um Latossolo Vermelho Distrófico (LVd) e em um Latossolo Vermelho Eutroférrico (LVef), cultivados com milho. O experimento foi conduzido em delineamento de blocos casualizados em parcelas subdivididas, com cinco tratamentos e quatro repetições, para cada classe de solo. Os tratamentos foram: T0= preparo convencional sem compactação adicional; T1, T2 e T3= uma passada do trator de 4, 7 e 10 t, respectivamente; T4= três passadas do trator de 10 t. Foram avaliadas nas camadas de 0-0,10; 0,10-0,20 e 0,20-0,30 m a curva de retenção de água, a densidade, a porosidade do solo e o índice S. Os valores do índice S no LVd foram semelhantes (0,035 a 0,037) no T0, T1 e T2, os quais estiveram relacionados à macroporosidade do solo. Para o LVef, a maioria dos valores do índice S situaram-se acima de 0,035, com exceção do T4, devido aos maiores valores de densidade do solo nesse tratamento. O índice S pode ser utilizado como um parâmetro complementar a altura do milho e a macroporosidade do solo, para a avaliação da qualidade estrutural em LVd.Palavras-chave: Tráfego de máquinas agrícolas. Manejo do solo. Atributos físico-hídricos do solo.

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Effects on some soil qualities in central Italy following the passage of four wheel drive tractor fitted with single and dual tires

Cited by 42 publications

References 30 publications

Camada de resíduos florestais e pressão de preconsolidação de dois latossolos

Camada de resíduos florestais e pressão de preconsolidação de dois latossolos

Impact of Normal and Shear Stresses Due to Wheel Slip on Hydrological Properties of an Agricultural Clay Loam: Experimental and New Computerized Approach

Use of S-Index as a Structural Quality Indicator for Compacted Latosols Cultivated With Maize

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