Physical properties of a humic cambisol under tillage and cropping systems after twelve years

Andrade, Andréia Patrícia; Mafra, Álvaro Luiz; Baldo, Gizele Rejane; Piccolla, Cristiano Dela; Bertol, Ildegardis; Albuquerque, Jackson Adriano

doi:10.1590/s0100-06832010000100022

Cited by 18 publications

(19 citation statements)

References 21 publications

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“…However, in no-tillage systems, where crop residues are left on the soil surface, this effect is the little importance, due in part, to soil cover by the crop canopy, as a result of differences in foliar density and in canopy height above the soil (Oliveira et al, 2003;Luciano et al, 2009). On the other hand, roots of different crops does differently influence soil aggregation, as mentioned by Baldissera (1985), , and Andrade et al (2010). Intercropping legumes with grasses results in greater soil protection than single cropping, according to the crop performance and the sowing period (Dornelles et al, 1997;Nolla et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Water erosion in no-tillage monoculture and intercropped systems along contour lines

Bertol

Ramos

Barbosa³

et al. 2013

Rev. Bras. Ciênc. Solo

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SUMMARYWater erosion is the major cause of soil and water losses and the main factor of degradation of agricultural areas. The objective of this work was to quantify pluvial water erosion from an untilled soil with crop rows along the contour, in 2009 and 2010, on a Humic Dystrupept, with the following treatments: a) maize monoculture; b) soybean monoculture; c) common bean monoculture; d) intercropped maize and bean, exposed to four simulated rainfall tests of on hour at controlled intensity (64 mm h -1 ). The first test was applied 18 days after sowing and the others; 39, 75 and 120 days after the first test. The crop type influenced soil loss through water erosion in the simulated rainfall tests 3 and 4; soybean was most effective in erosion control in test 3, however, in test 4, maize was more effective. Water loss was influenced by the crop type in test 3 only, where maize and soybean were equally effective, with less runoff than from the other crops. The soil loss rate varied during the runoff sampling period in different ways, demonstrating a positive linear relationship between soil and water loss, in the different rainfall tests.Index terms: water losses, soil losses, simulated rainfall. RESUMO: EROSÃO HÍDRICA EM SOLO NÃO PREPARADO CULTIVADO EM CONTORNO COM USO DE SISTEMAS DE CULTIVO SOLTEIRO E EM CONSÓRCIO

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Section: Introductionmentioning

confidence: 99%

Water erosion in no-tillage monoculture and intercropped systems along contour lines

Bertol

Ramos

Barbosa³

et al. 2013

Rev. Bras. Ciênc. Solo

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“…The dry matter produced per crop (Table 2) was high in the CT, MT, and NT treatments, explained partly by the crop rotation adopted (Table 1) and partly by the regularity of rainfall without periods of marked water deficit and by the appropriate physical and chemical properties of the soil (Andrade et al, 2010;Andrade et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Water Erosion in a Long-Term Soil Management Experiment with a Humic Cambisol

Schick

Bertol

Barbosa

et al. 2017

Rev. Bras. Ciênc. Solo

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Water erosion, the main factor in soil degradation, is strongly influenced by soil cover and management. The objective of this study was to determine soil and water losses under natural rainfall conditions from 1993 to 2012 in the southern Santa Catarina Plateau, Brazil, in 3.5 × 22.1 m plots with crops in rotation to study the following management treatments: conventional tillage (CT), minimum tillage (MT), and no-tillage (NT), and a treatment with bare soil (BS). The soil cover remaining after tillage was negatively affected by the increase in soil tillage intensity. Soil losses were strongly affected by the management system, while water losses were less affected. Soil losses were 85.29, 6.41, 2.00, and 0.82 Mg ha -1 yr -1 in the BS, CT, MT, and NT treatments, respectively, while water losses were 38, 24, 15, and 9 % of the rainfall, respectively, in the annual mean. Soil losses in spring/summer were similar to those of autumn/winter in the CT, MT, and NT treatments, while water losses were influenced by the time of year in all soil management systems. The accumulated soil losses in the MT and NT treatments tended to stabilize over the period evaluated, whereas they increased an average of 88.12 Mg ha -1 yr -1 in the BS and 7.23 Mg ha -1 yr -1 in the CT treatments. The accumulated water losses had a linear response, with positive angular coefficients for all treatments. The relationship between annual soil and water loss data was significant in the BS treatment; in the CT, MT, and NT treatments, this relation was not significant.

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“…In a study regarding soil characteristics after 12 years of different managements (conventional tillage and no-till), Andrade et al (2010) highlight the following: (1) the soil physical properties in no-tillage systems remain adequate for plant development; and (2) at the shallower soil layer of the no-till crop succession, soil density values were reduced. This means crop plants usually find a similar or occasionally more suitable environment for their development under no-till systems than under conventional tillage.…”

Section: Resultsmentioning

confidence: 99%

Soil seed bank of plant species as a function of long-term soil management and sampled depth

et al. 2011

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-This study aimed at assessing the level of weed infestation indifferent areas that were submitted to different soil management for 16 years. Four management systems were studied: (1) agriculture only under conventional tillage system; (2) agriculture only under no-till system; (3) crop-livestock integrationcrop-livestock integration; (4) livestock only. These areas were sampled at three soil depths (0-5, 5-10 and 10-15 cm), and soil was stored in plastic pots and taken to a greenhouse, where soil moisture and weight were standardized. Soil was kept near 70% moisture field capacity, being revolved every 20 days when all seedling emerged from soil were counted, identified and collected for dry mass assessment. The soil coverage by weeds, number of weed seedlings and dry mass of the weedy community were assessed. A phytoecological analysis was conducted. Weed composition is differentdifferent among management systems after 16 years. Areas with livestock showed much smaller number of weed species in comparison to systems where only grain crops are grown. The presence of livestock affects the potential of germination of soil seed bank. Agriculture systems are similar in terms of weed composition along soil profile, while systems involving livestock show little relation in what regards such sampled depths. Conservationist models of land exploration contribute to reduce severity of weed species occurrence in the long term.Keywords: weeds, cropping systems, crop-livestock integration.RESUMO -Objetivou-se avaliar o nível de infestação por plantas daninhas em áreas submetidas a manejos distintos por 16 anos: (1) agricultura em sistema convencional de preparo; (2) agricultura em sistema plantio direto; (3) integração lavoura/pecuária; (4) somente pecuária. Amostras de solos destas áreas foram coletadas em três profundidades (0-5, 5-10 and 10-15 cm), depositadas em potes plásticos e levadas a casa de vegetação. O solo era revolvido a cada 20 dias, quando as plantas daninhas presentes eram identificadas e coletadas. Foram avaliados cobertura por plantas daninhas; densidade de plantas daninhas e massa seca da comunidade infestante. Foi também conduzida análise fitoecológica em função dos distintos manejos e profundidades. Áreas onde pastagens estiveram presentes tiveram menor infestação por plantas daninhas que áreas onde somente agricultura era utilizada. A composição florística difere entre sistemas de manejo. Áreas onde a pecuária está presente apresentaram número de plântulas de espécies daninhas muito inferior a sistemas onde somente agricultura está presente. A presença de criação de gado afeta o potencial de emergência das espécies presentes no banco de sementes do solo. Sistemas de agricultura sem integração apresentam alta similaridade em termos de composição de espécies ao longo do perfil do solo enquanto sistemas integrados com pecuária apresentam pouca relação entre as profundidades amostradas. Modelos conservacionistas de exploração do solo contribuem com a redução da severidade de ocorrência de espécie...

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Physical properties of a humic cambisol under tillage and cropping systems after twelve years

Cited by 18 publications

References 21 publications

Water erosion in no-tillage monoculture and intercropped systems along contour lines

Water erosion in no-tillage monoculture and intercropped systems along contour lines

Water Erosion in a Long-Term Soil Management Experiment with a Humic Cambisol

Soil seed bank of plant species as a function of long-term soil management and sampled depth

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