Qualidade física do solo sob sistemas de preparo e cobertura morta em pomar de laranja

Fidalski, Jonez; Barbosa, Graziela Moraes de Césare; Auler, Pedro Antonio Martins; Pavan, Marcos Antonio; Beraldo, José Marcos Garrido

doi:10.1590/s0100-204x2009000100011

Cited by 8 publications

(12 citation statements)

References 12 publications

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“…In this experiment, the soil organic carbon contents in the plant rows did not differ statistically between the mulch management systems (Beraldo et al 2007;Fidalski et al, 2009). The high sand content of this soil reinforces that the soil water content and availability at 0-20 and 20-40 cm depth was influenced exclusively by mulching and by the different water consumption rates associated to rootstocks (Tables 6 and 7).…”

Section: Resultsmentioning

confidence: 55%

“…Unlike in the first evaluation cycle, soil tillage systems did not affect the soil water content during the four drying periods (Table 5), possibly due to the long period after the last soil disturbance by tillage prior to orchard orange implantation (2002), because there was no change in the soil density in this experiment (Fidalski et al, 2009). Under mulching, (1) Means followed by the same capital letter for soil tillage system (row) and lower-case letter for mulching (column) did not differ by the Tukey test (p < 0.05).…”

Section: Resultsmentioning

confidence: 79%

“…In the subsurface soil, a higher soil water content was measured at 20-40 cm depth (sandy clay loam texture) than in the 0-20 cm topsoil layer (sandy texture), regardless of soil tillage systems, mulching and rootstocks (Tables 5, 6 and 7), probably associated to the higher clay content , 2009, Machado et al, 2008 which reduce the drainage rate in this soil. In the spring, on November 21 and 27, 2008, mulching had a positive influence on the soil 7) related to the higher transpiration rates of the orange trees grafted on this rootstock (Cintra et al, 2000).…”

Section: Resultsmentioning

confidence: 87%

“…For the implantation of orange orchards, the soil is usually tilled and plants and residue are incorporated leaving the soil temporarily bare, which aggravates soil and water losses (Politano & Pissarra, 2005). Experimental results have shown the possibility of using reduced soil tillage for the implantation of orange orchards (Auler et al 2008b;Fidalski et al, 2009), maintaining permanently vegetated rows without soil disturbance by tillage after the establishment of the orchard .…”

Section: Introductionmentioning

confidence: 99%

“…Alternatively, there is the possibility of producing grass biomass between the rows of orange orchards with mechanical mowing for mulch accumulation on the soil in plant rows (Beraldo et al 2007;Bremer Neto et al, 2008;Fidalski et al, 2009). However, the effect of mulching in the plant rows has not been evaluated for the possible responses of rootstocks, which may differ in soil water uptake and consumption.…”

Section: Introductionmentioning

confidence: 99%

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Availability of soil water under tillage systems, mulch management and citrus rootstocks

Fidalski¹,

Auler²,

Beraldo

et al. 2010

Rev. Bras. Ciênc. Solo

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SUMMARYThe increased availability of soil water is important for the management of non-irrigated orange orchards. The objective of this study was to evaluate the availability of soil water in a Haplorthox (Rhodic Ferralsol) under different tillage systems used for orchard plantation, mulch management and rootstocks in a "Pêra" orange orchard in northwest Paraná, Brazil. An experiment in a split-split-plot design was established in 2002, in an area cultivated with Brachiaria brizantha grass in which three tillage systems (no tillage, conventional tillage and strip-tillage) were used for orchard plantation. This grass was mowed twice a year between the rows, representing two mulch managements in the split plots (no mulching and mulching in the plant rows). The split-split-plots were represented by two rootstocks ("Rangpur" lime and "Cleopatra" mandarin). The soil water content in the plant rows was evaluated in the 0-20 cm layer in 2007 and at 0-20 and 20-40 cm in 2008-2009. The effect of soil tillage systems prior to implantation of orange orchards on soil water availability was less pronounced than mulching and the rootstocks. The soil water availability was lower when "Pêra" orange trees were grafted on "Cleopatra" mandarin than on "Rangpur" lime rootstocks. Mulching had a positive influence on soil water availability in the sandy surface layer (0-20 cm) and sandy clay loam subsurface (20-40 cm) of the soil in the spring. The production of B. brizantha between the rows and residue disposal in the plant rows as mulch increased water availability to the "Pêra" orange trees.Index terms: Brachiaria brizantha, no tillage, soil management, soil texture, time domain reflectometry.(

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Section: Resultsmentioning

confidence: 55%

Section: Resultsmentioning

confidence: 79%

Section: Resultsmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Availability of soil water under tillage systems, mulch management and citrus rootstocks

Fidalski¹,

Auler²,

Beraldo

et al. 2010

Rev. Bras. Ciênc. Solo

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Antropização da zona de amortecimento da reserva biológica serra dos toledos (Itajubá-MG) e seu efeito na qualidade do solo

Lima

Melloni

2013

CERNE

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RESUMO:Áreas que compreendem "zonas de amortecimento" são importantes na minimização dos efeitos dos impactos gerados no entorno e que podem afetar o interior de unidades de conservação, auxiliando na manutenção de seus recursos naturais. No entanto, nem sempre são protegidas e muitas são manejadas indevidamente, comprometendo a sustentabilidade das mesmas e, por conseguinte, das próprias unidades. Neste trabalho, objetivou-se avaliar o efeito da antropização da zona de amortecimento na qualidade do solo interno à Reserva Biológica Serra dos Toledos, em Itajubá-MG. Para isso, selecionaram-se três áreas sob diferentes atividades na zona de amortecimento (pastagem, agricultura e mata nativa) e três áreas limítrofes a essas, dentro da Reserva Biológica, caracterizando-as de acordo com diversos atributos físicos, químicos, microbiológicos e visuais da qualidade do solo. As áreas que apresentaram as piores condições físicas, microbiológicas e visuais do solo foram aquelas localizadas na zona de amortecimento sob atividades de agricultura e pastagem. Os atributos microbiológicos mostraram-se sensíveis na discriminação das diferentes áreas, evidenciando a relação direta entre o impacto negativo da agricultura praticada na zona de amortecimento e a qualidade do solo no interior da Reserva Biológica estudada.Palavras-chave: Atributos físicos, atributos microbiológicos, atributos visuais, qualidade ambiental, unidade de conservação. DAMPING ZONE IN THE BIOLOGICAL RESERVE SERRA DOS TOLEDOS (ITAJUBÁ-MG) AND ITS EFFECT ON SOIL QUALITY ABSTRACT: Areas that comprise "damping zones" are important in minimizing the effects of impacts on the environment as they can affect the conservation unit, and in helping to maintain its natural resources. However, they are not protected and many are handled improperly, compromising the sustainability of the conservation units they should protect. The aim of this study was to evaluate the effect of human disturbance in the damping zone on the soil quality inside the Biological Reserve Serra dos

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Atributos físicos do solo e produtividade de soja em sistema de consórcio milho e braquiária

Chioderoli

Mello

Grigolli

et al. 2012

Rev. bras. eng. agríc. ambient.

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R ESU M OEm virtude das altas taxas de decomposição do material orgânico em regiões tropicais, um dos problemas para a manutenção e sustentabilidade do sistema de plantio direto é a necessidade de produção de grandes quantidades de palha. Com o objetivo de identificar, no sistema de integração agriculturapecuária, as variações dos atributos físicos do solo e a produtividade de grãos de soja sobre palhada de braquiárias, este trabalho foi conduzido na FEPE-UNESP de Ilha Solteira, SP, e o delineamento experimental utilizado foi o de blocos ao acaso, com nove tratamentos em esquema fatorial (3 x 3), com quatro repetições. Os tratamentos foram constituídos por três espécies de braquiárias e três modalidades de consórcio das braquiárias com o milho. Os atributos físicos foram determinados antes da implantação do projeto de pesquisa, após a colheita do milho consorciado com as forrageiras e depois da colheita da soja. Na safra de verão a cultura da soja foi semeada sobre a palhada dos consórcios de milho com braquiárias, no espaçamento de 0,45 m, com 14 linhas por parcela e área útil correspondente às 4 linhas centrais de 5 m cada uma. Os resultados permitiram concluir que a consorciação e a sequência de culturas proporcionaram aumento na macroporosidade e porosidade total do solo. A Brachiaria brizantha semeada na época de adubação de cobertura do milho e a Brachiaria decumbens, na linha do milho, promoveram maiores valores de produtividade de grãos de soja.Palavras-chave: semeadura simultânea, cobertura do solo, palhada, sucessão de culturas Physycal properties of soil and yield of soybeans in corn braquiaria consortium A B ST R A C TIn tropical regions, due to high rates of decomposition of the organic material, one of the problems for the maintenance and no tillage system sustainability is the necessity of production of great quantities of straw. With the objective to identify, in the pasture-agriculture integration system, the variations of soil physical attributes and yield of soybean on brachiaria straw, the present work was conducted at the FEPE-UNESP of Ilha Solteira, SP. The randomized block experimental design was used , with nine treatments in the fatorial scheme 3x3, with four repetitions. The treatments consisted of three species of brachiaria and a consortium of the three types of brachiaria with corn. The physical properties of soil were determined before the installation of the experimente, after the harvest of corn intercropped with forage and after the harvest of soybeans. In summer the soybean crop was sown on the straw of corn and brachiaria spaced 0.45 m, with 14 lines per plot and area for data collection consisting of 4 lines of 5 m each. The results showed that intercropping and sequence of crops provided increase of soil macroporosity and total porosity. Brachiaria brizantha sown at the time of top-dressing of corn and Brachiaria decumbens sown in line promoted higher yields of soybeans.

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Qualidade física do solo sob sistemas de preparo e cobertura morta em pomar de laranja

Cited by 8 publications

References 12 publications

Availability of soil water under tillage systems, mulch management and citrus rootstocks

Availability of soil water under tillage systems, mulch management and citrus rootstocks

Antropização da zona de amortecimento da reserva biológica serra dos toledos (Itajubá-MG) e seu efeito na qualidade do solo

Atributos físicos do solo e produtividade de soja em sistema de consórcio milho e braquiária

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