Uso do solo e propriedades físico-mecânicas de Latossolo Vermelho

Ortigara, Cícero; Koppe, Ezequiel; Luz, Felipe Bonini da; Bertollo, Altamir Mateus; Kaiser, Douglas Rodrigo; Silva, Vanderlei Rodrigues da

doi:10.1590/s0100-06832014000200026

Cited by 28 publications

(21 citation statements)

References 25 publications

(27 reference statements)

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“…In addition, soil compaction implies increased soil resistance to mechanical penetration, which restricts root development. Lower root development reduces the ability for water uptake by roots, consequently affecting plant growth (Collares et al, 2011;Ortigara et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Physical Properties and Crop Management for Corn in an Albaqualf

Giacomeli

Marchesan

Oliveira

et al. 2017

Rev. Bras. Ciênc. Solo

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Rice monoculture in lowlands can cause problems for management practices in crop fields, for example, in weed control. For this reason, corn in rotation with irrigated rice in lowlands may be advantageous, despite problems with soil compaction and water excess. The objective of this study was to evaluate soil physical properties and corn performance in soil management systems in an Albaqualf soil (lowlands). Two experiments were conducted in the field, in the 2013/14 and 2014/15 crop seasons. The experimental design was randomized blocks with two factors. There were three levels for the first factor, consisting of soil management practices: soil chiseling 45 days before sowing to a depth of 0.3 m; conventional tillage with two diskings to a depth of 0.1 m and subsequent leveling of the soil; and no-till. The second factor was composed of two levels: sowing on raised seedbeds, and without raised seedbeds. The soil parameters of bulk density, total porosity, macroporosity, microporosity, volumetric moisture, and soil resistance to mechanical penetration (RP) were evaluated. The corn parameters were plant height, shoot dry matter, leaf area, height of the first ear of corn, grains per ear, and grain yield. Soil chiseling resulted in lower RP and higher macroporosity in the 0.1-0.2 and 0.2-0.3 m layers. In raised seedbeds, the 0.00-0.05, 0.05-0.10, and 0.10-0.20 m layers were lower in RP and bulk density. Moreover, higher soil macroporosity was observed in relation to the treatment without raised seedbeds. In general, the highest grain yields were found in the treatments with lower RP and higher macroporosity in the root system region. Increased porosity accelerated water drainage in the soil, reducing the time that soil airspace was filled with water, which is a limiting factor for root development. In Albaqualf soils, planting corn in chiseled soil provides higher corn yields compared to conventional tillage, and planting corn on raised seedbeds provides higher corn yields compared to the lack of raised seedbeds.

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Section: Introductionmentioning

confidence: 99%

Physical Properties and Crop Management for Corn in an Albaqualf

Giacomeli

Marchesan

Oliveira

et al. 2017

Rev. Bras. Ciênc. Solo

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“…In Santa Maria, most of the root system was located up to 30 cm depth. The lower macroporosity in Cachoeirinha (Table 1) allows of low AWC and high density -which characterizes the loss of physical structure in hydromorphic soils, where irrigated rice is cultivated in Rio Grande do Sul (Mentges et al, 2013) -, as well as permits the increasing of resistance to root penetration in the soil (Ortigara et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Performance of soybean in hydromorphic and nonhydromorphic soil under irrigated or rainfed conditions

Rocha

Streck

Zanon

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate soybean cultivation in a hydromorphic or nonhydromorphic soil, with or without supplemental irrigation. Field experiments were carried out with the TECIRGA 6070RR and A 6411RG cultivars in highlands (nonhydromorphic soils) and lowlands (hydromorphic soils), which are traditionally cultivated with irrigated rice. The following parameters were determined in both soybean cultivars: leaf area index, developmental stages, dry matter partition, and leaf gas exchange. Low water stresses, which commonly occur either by deficit or excess in soybean areas cultivated in hydromorphic soils, do not affect the development and partitioning of dry matter; however, they cause reductions in stomatal conductance, photosynthetic rate, and leaf area evolution. Growing soybean in lowlands exposes plants to water stress, even in years with well-distributed rainfall during the growing season, due to the low water storage capacity of these soils.Index terms: Glycine max, gas exchange, irrigation, lowlands. Desempenho da soja cultivada em solo hidromórfico e não hidromórfico com ou sem irrigaçãoResumo -O objetivo deste trabalho foi avaliar o cultivo de soja em solo hidromórfico ou não hidromórfico, com ou sem irrigação suplementar. Experimentos em campo com as cultivares TECIRGA 6070RR e A 6411RG foram realizados em terras altas (solos não hidromórficos) e em terras baixas (solos hidromórficos), que são tradicionalmente cultivadas com arroz irrigado. Determinaram-se, nas duas cultivares de soja, os seguintes parâmetros: índice de área foliar, estágios de desenvolvimento, partição de matéria seca e quantificação das trocas gasosas em nível foliar. Pequenos estresses hídricos, que comumente ocorrem por deficit ou excesso em áreas de soja cultivada em solo hidromórfico, não influenciam o desenvolvimento e a partição de matéria seca; porém, provocam reduções da condutância estomática, da taxa fotossintética e da evolução da área foliar. O cultivo de soja em solos hidromórficos faz com que as plantas sejam expostas ao estresse hídrico, até mesmo em anos com precipitação de chuvas bem distribuída ao longo da estação de crescimento, em razão da baixa capacidade de armazenamento de água desses solos.Termos para indexação: Glycine max, trocas gasosas, irrigação, terras baixas.

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“…À medida que se aumenta a profundidade, ocorre a diminuição do teor de matéria orgânica, reduzindo também o número de macroporos. Ortigara et al (2014) estudando as propriedades físicas e mecânicas de um Latossolo Vermelho distrófico em áreas de pastejo rotacionado, mata nativa e lavoura com culturas anuais, obtiveram como resultado uma redução nos valores de macroporosidade nos solos cultivados comparado a mata natural, atribuindo a elevada macroporosidade na mata à preservação da estrutura do solo, à abundante fauna edáfica e a Na avaliação da velocidade de infiltração (Vi) e condutividade hidráulica (Kfs) dos solos nos diferentes tipos de uso, observou-se um comportamento padrão, com maiores valores de Vi e Kfs em superfície (0-20 cm), quando comparados aos resultados obtidos na profundidade de 20 a 40 cm (Tabela 4 e Figura 3). Gennaro et al (2015) estudando um Latossolo Vermelho distrófico sob diferentes sistemas de manejo, atribuíram os maiores valores de Kfs na camada superficial ao maior crescimento radicular das culturas agrícolas e à presença de microtúbulos após a decomposição de raízes vegetais, favorecendo o movimento de água no solo.…”

Section: Resultsunclassified

Relation between the soil's hydro-physical attributes and the land use as subsidy to the use and management of soil and water in the Pirapó river drainage basin

Marcatto

Silveira

2016

Revista Brasileira De Geografia Física

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Relação entre as propriedades físico-hídricas dos solos e os tipos de uso da terra como subsídio ao manejo e conservação do solo e da água na bacia hidrográfica do rio Pirapó-PR R E S U M OOs Latossolos e Nitossolos da bacia hidrográfica do Pirapó apresentam reduzida suscetibilidade natural à ocorrência de processos erosivos, entretanto, o manejo inadequado tem promovido a sua degradação, impondo condições favoráveis a ação dos agentes de erosão. Diante disso, esse trabalho tem por objetivo estudar os Latossolos Vermelhos e Nitossolos Vermelhos de textura argilosa na bacia hidrográfica do Pirapó, apontando os efeitos das diferentes formas de uso e ocupação no comportamento físico e hídrico dos solos. Foram realizadas análises físicas de densidade do solo, porosidade total, macroporosidade, microporosidade, granulometria e estabilidade de agregados; análises hídricas de velocidade de infiltração e condutividade hidráulica e a análise química de carbono orgânico. Os resultados indicaram que os Latossolos e Nitossolos cultivados com culturas de grãos mostraram-se mais sensíveis às alterações impostas pelo tipo de uso, com alteração das suas propriedades físico-hídricas, sendo necessário buscar o correto manejo do solo garantindo a manutenção da qualidade da água e a sustentabilidade da bacia hidrográfica. Palavras-chave: propriedades físico-hídricas, uso da terra, compartimento de paisagem 4B, Latossolos e Nitossolos.Relation between the soil's hydro-physical attributes and the land use as subsidy to the use and management of soil and water in the Pirapó river drainage basin A B S T R A C TThe Latosol and Nitosol in the Pirapó drainage basin present little natural susceptibility to erosive processes, however, inadequate management has been promoting its degradation and creating conditions favorable to the action of the agents of erosion. In face of this, this works objective is studying the Red Latososl and Red Nitosols of clayey texture in the Pirapó drainage basin, pointing the effects of the different forms of use and occupation in the hydro-physical behavior of these soils. Physical analysis of soil density, total porosity, macroporosity, microporosity, granulometry and aggregate stability were conducted, along with water analysis of infiltration rate and hydraulic conductivity, plus a chemical analysis of organic carbon. The results indicate the Latosols and Nitosols under grain crops are more sensitive to the changes caused by the type of use, with alteration of is hydro-physical attributes, making the search for the correct soil management necessary for maintenance of the water quality and sustainability of the drainage basin.

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Uso do solo e propriedades físico-mecânicas de Latossolo Vermelho

Cited by 28 publications

References 25 publications

Physical Properties and Crop Management for Corn in an Albaqualf

Physical Properties and Crop Management for Corn in an Albaqualf

Performance of soybean in hydromorphic and nonhydromorphic soil under irrigated or rainfed conditions

Relation between the soil's hydro-physical attributes and the land use as subsidy to the use and management of soil and water in the Pirapó river drainage basin

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