Índice de qualidade do solo em cultivo agroecológico e convencional no semiárido potiguar, Brasil

Santiago, Fábio dos Santos; Montenegro, Suzana Maria Gico Lima; Pinheiro, Maria Rafaela de Almeida

doi:10.18378/rvads.v13i1.5333

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…For soil function 2, sum of bases (1.00%) and soil organic matter (3.34%) had the smallest participation. Santiago, Montenegro and Pinheiro (2018) evaluated the SQI in several experimental agricultural units and observed that, for the soil function responsible for nutrient supply and cycling, soil organic matter was one of the most remarkable indicators.…”

Section: Resultsmentioning

confidence: 99%

Soil quality index of an ultisol under long-term plots in the coastal tablelands in northeastern Brazil

et al. 2023

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Soil quality, measured through its chemical, physical and microbiological attributes, changes as a result of anthropic sensations and becomes an important tool to assess environmental quality. The objective of this study was to determine and evaluate the Quality Index of an Ultisol in a long-term (17-yr) plots under different management systems in the Coastal Tablelands of Sergipe State, in Northeastern, Brazil. Main effects were conventional tillage (CT), no-tillage (NT), and minimum tillage (MT) distributed cultivated strips with corn as the main crop. Split-range treatments were randomly distributed and cultivated with cowpea beans (Vigna unguiculata), sunn hemp (Crotalaria juncea), pigeon pea (Cajanus cajan), and millet (Pennisetum glaucum). A forest soil was used as reference, compared to the soil samples of the cultivated area. The Soil Quality Index (SQI) for the 0-0.10 m layer was calculated by the additive method. There were changes in soil properties between the different management systems, and between the experimental soil and the reference area. The highest SQI was obtained from the forest area (67.1) followed by the NT treatment (65.5), MT (65.1) and CT treatment (61.0). The lowest SQI was observed in the CT treatment previously cultivated with pigeon pea (56.5). Among the evaluated soil functions, maintenance of homeostasis had the greatest influence on the SQI. The higher acidity of the forest soil helps to explain the origin of the limitations of the soil in the cultivated area that occupies the same type of soil, tolerated by the adoption of conservationist managements.

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Section: Resultsmentioning

confidence: 99%

Soil quality index of an ultisol under long-term plots in the coastal tablelands in northeastern Brazil

et al. 2023

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“…Sistemas baseados na Agroecologia também constituem ferramentas transformadoras na superação das limitações do semiárido, conforme Ferreita et al (2011) já apontou em seus estudos sobre a sustentabilidade de agrossistemas com barragens subterrâneas na Paraíba. Santiago et al (2018) realizou uma comparação entre a qualidade do solo em cultivos irrigados agroecológicos e convencionais, atestando positivamente os impactos da utilização de práticas da agroecologia em face ao manejo tradicional.…”

Section: Tecnologias Sustentáveis Para a Gestão De Recursos Hídricosunclassified

Perspectivas da gestão hídrica no semiárido brasileiro para a irrigação

ALMEIDA

Almeida

Oliveira

2021

DS-CNT

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As mudanças climáticas afetam a concentração de água, portanto, pesquisadores de todo o mundo tem aplicado métodos capazes de prever o que estas alterações causaram aos recursos hídricos. A produção de alimentos no território brasileiro provém majoritariamente da agricultura irrigada, necessitando por tanto, de uma boa gestão hídrica. A região semiárida do país já sofre com crises hídricas, devido, questões ambientais, como clima desfavorável. Havendo assim, necessidade de encontrar soluções rápidas e imediatas capazes de otimizar o uso da água, contribuindo para a sustentabilidade e qualidade de vida da população desta região. O objetivo deste trabalho é, a partir de uma revisão bibliográfica, apresentar as principais técnicas, como os bioindicadores e sensoriamento remoto, irrigação por condensação, os tanques de pedra e reuso de água, que podem ser aplicadas no semiárido brasileiro como subsídios à gestão dos recursos hídricos. Os resultados destas pesquisas apontam, que apesar das mudanças climáticas e aridez nessas regiões, é possível, com a utilização de novas tecnologias, gerir os recursos hídricos, minimizando a perda de água na irrigação.

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“…DCW rates at deeper layers were similar to those at the surface, indicating a translocation of material, especially at dose 240 m³ ha -1 , in which there was an 81% DCW reduction between layers 0-0.20 m and 0.20-0.40 m. In fact, biosolid triggered decrease of DCW through an increase of applied doses that, in turn, may directly affect the soil's compact capacity. According to Santiago et al (2018), increase in MOS provided a better soil structure, a decrease in DCW, and an increase of flocculation degree.…”

Section: Dispersed Clay In Water (Dcw)mentioning

confidence: 99%

Biosolid in the Chemical and Physical Attributes of a Typical Dystrophic Red Latosol

et al. 2020

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This experiment assessed the effects of biosolids in the soil's chemical and physical characteristics. Soil was mixed to a biosolid in a totally randomized design, within a 5 × 4 factorial scheme: five doses of biosolid (0, 60, 120, 180, and 240 m 3 ha -1 ) and four depths (0-0.10; 0.10-0.20; 0.20-0.30; 0.30-0.40 m). Soil was placed in 50 L-tubs imitating the soil profile. Doses of biosolid were added to the soil and samples were retrieved after 120 days. Biosolid tended towards acidification, with very low P and K rates. Nutrient leaching, such as Mg, increases microporosity and the reduction of soil macroporosity should be considered in high doses of biosolid.

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Índice de qualidade do solo em cultivo agroecológico e convencional no semiárido potiguar, Brasil

Cited by 4 publications

References 6 publications

Soil quality index of an ultisol under long-term plots in the coastal tablelands in northeastern Brazil

Soil quality index of an ultisol under long-term plots in the coastal tablelands in northeastern Brazil

Perspectivas da gestão hídrica no semiárido brasileiro para a irrigação

Biosolid in the Chemical and Physical Attributes of a Typical Dystrophic Red Latosol

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