Atributos físicos de solos sob diferentes usos com irrigação no semiárido de Pernambuco

Corrêa, Rossini Mattos; Freire, Maria Betânia Galvão dos Santos; Ferreira, Rinaldo L. C.; Silva, José A. A. da; Pessoa, Luiz Guilherme Medeiros; Miranda, Marcelo A.; Melo, Diego Vandeval Maranhão de

doi:10.1590/s1415-43662010000400003

Cited by 15 publications

(18 citation statements)

References 14 publications

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“…These founds supports those obtained by Borges et al (2009) who stated that in deeper layers of the soil, there were no physical-water quality losses in grazing area compared to Brazilian Cerrado natural. Corrêa et al (2010) also agree that in the 0.2-0.4 m layer there was no change in physical properties in areas with different types of crops compared to natural vegetation.…”

Section: Parameters Of Rainfall Maximum and Minimum Temperaturessupporting

confidence: 77%

Structuring of a Haplortox by Soil Cover Species

Tokura¹,

Secco²,

Júnior³

et al. 2018

JAS

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The objective of this work was to evaluate the effect of soil cover species and management systems in improving the physical characteristics of a Haplortox and its effects on grain yield and soybean oil content. The experimental area, consisted of 15 treatments in a completely randomized experimental design. Each plot had size of 20 × 25 m. The treatments consisted of: traditional no-tillage system (control), no-tillage system with application of gypsum, no-tillage with scarification and 12 treatments with cover species called soil structure reclaimers. Soil samples were collected in the layers of 0-0.10; 0.10-0.20 and 0.20-0.30 m, with four replicates. The physical attributes evaluated were bulk density, total porosity, microporosity, macroporosity and saturated hydraulic conductivity in the periods of 2014, 2015 and 2016. In the soybean crop the grain yield, oil content, weight of 100 grains, average height of plants and number of plants/m were evaluated in each treatment with four replications. The oil content was performed by the low-field nuclear magnetic resonance method. The averages of the treatments were compared by the Tukey test at 5% of significance. The results showed that five months after soil scarification did not affect bulk density. Eleven months after gypsum application discrete improvements in density, total porosity, microporosity and soil hydraulic conductivity occurred in the 0-0.10 and 0.10-0.20 m layers. It was also concluded that grain yield, oil content, weight of 100 grains and number of plants per meter were not influenced by the soil cover species and soil management systems.

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Section: Parameters Of Rainfall Maximum and Minimum Temperaturessupporting

confidence: 77%

Structuring of a Haplortox by Soil Cover Species

Tokura¹,

Secco²,

Júnior³

et al. 2018

JAS

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“…Essa mudança de um ambiente natural para algum tipo de exploração ocorre inicialmente pela retirada da vegetação e exposição do solo e, num segundo momento, de acordo com Corrêa et al (2010), pela aplicação de fertilizantes e defensivos agrícolas, pelo tráfego de máquinas e pela alteração do regime hídrico nas bacias hidrográficas.…”

Section: Introductionunclassified

Qualidade Física de Solos em Uso Agrícola na Região Semiárida do Estado da Bahia

Arcoverde

Salviano

Olszevski

et al. 2015

Rev. Bras. Ciênc. Solo

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resuMo a conversão de uma condição natural para uma de uso agrícola pode impor mudanças em atributos, propriedades e processos do solo e trazer consequências ambientais para a região de sua abrangência. o objetivo deste trabalho foi avaliar a qualidade física do solo em áreas agrícolas de municípios do entorno do lago de sobradinho, região semiárida do estado da Bahia, tendo como ferramenta técnicas estatísticas de análise multivariada. inicialmente, aplicaram-se as análises estatísticas descritiva e de correlação e o teste de normalidade, que serviram como pressupostos para realizar análise fatorial e estimativa dos escores fatoriais. Com base nesses, determinou-se o índice de qualidade física de solo para as profundidades de 0,00-0,10; 0,10-0,20; e 0,20-0,40 m, respectivamente, cujo principal objetivo foi classificar os solos como bom, regular e ruim, de acordo com o desempenho dos seus atributos físicos. em seguida, realizou-se a análise discriminante para validação dos índices construídos a partir dos resultados da análise fatorial, bem como conhecer os atributos físicos do solo que influenciam e estão associados à qualidade desse na área agrícola da região. A densidade do solo (ds), macroporosidade (Ma) e microporosidade (Mi) foram os atributos que se destacaram como indicadores de qualidade, pois apresentaram maior peso relativo nos modelos de discriminação dos sítios amostrados: ds, Ma e Mi, nas camadas de 0,00-0,10 e 0,10-0,20 m; e Mi Recebido para publicação em 16 de maio de 2014 e aprovado em 11 de junho de 2015.

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“…The detailing of potentialities and fragilities is of extreme importance to the planning to minimize impacts observed continuously in the region (Corrêa et al, 2010). These impacts are considered the result of a combination of agriculture management and environmental characteristics (Corrêa et al, 2010;Mota & Valladares, 2011;Ursulino & Moreno, 2014), which together lead to and accelerate the development of physical and chemical degradation. These processes are mainly due to the use of irrigation systems (furrows and flooding) of low efficiency, overuse of chemical fertilizers, and, in many cases, unfavorable natural drainage conditions.…”

Section: Introductionmentioning

confidence: 99%

Multivariate Analysis of Chemical and Physical Attributes of Quartzipsamments Under Different Agricultural Uses

Arcoverde¹,

Cortez

Olszevski

et al. 2019

Eng. Agríc.

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The inadequate agricultural management in the semiarid region of northeastern Brazil, associated with the fragility of most soils, has caused degradation of the quality of this resource. This study aimed to evaluate the quality of Quartzipsamments under different uses through the multivariate analysis of chemical and physical attributes. Five areas were selected: four of them with agricultural use (onion, banana, cassava, and corn) and the other with Caatinga. Soil samples were collected at depths of 0.00-0.10, 0.10-0.20, and 0.20-0.40 m for chemical and physical analyses. The data were submitted to descriptive analysis and then to the multivariate analysis using the principal component analysis (PCA) technique and Ward's clustering method. PCA and clustering techniques allowed the identification of different production systems in subsurface layers, suggesting the effect of fertility on the differentiation of areas with onion and banana, as well as the clustering of cassava and corn cultivations. Physical attributes and sodium content of the surface layer of the area with onion showed a tendency of compaction and salinization process of this environment. In general, fertility was the main responsible for the improvement of soil quality with agricultural use when compared to the Caatinga.

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Atributos físicos de solos sob diferentes usos com irrigação no semiárido de Pernambuco

Cited by 15 publications

References 14 publications

Structuring of a Haplortox by Soil Cover Species

Structuring of a Haplortox by Soil Cover Species

Qualidade Física de Solos em Uso Agrícola na Região Semiárida do Estado da Bahia

Multivariate Analysis of Chemical and Physical Attributes of Quartzipsamments Under Different Agricultural Uses

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