Evaluation of soil structure using participatory methods in the semiarid region of Brazil

Araújo, Ana Leônia de; Oliveira, Renato Teixeira de; Ferreira, Tiago Osório; Romero, Ricardo Espíndola; Oliveira, Teógenes Senna de

doi:10.1590/s1806-66902013000300001

Cited by 4 publications

(10 citation statements)

References 30 publications

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“…However, the results suggest an increasing trend in OM in the intercropping of maize with U. ruziziensis, and this increase was observed in the next season. In addition, to the effect of the root system, the increase in OM favors the formation and stabilization of soil aggregates, improving soil structure (Araújo et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

Structural Properties of Soil in Maize and Forage Grass Intercropping Under No-Tillage in the Brazilian Cerrado

Cagna

Calábria²,

Filho

et al. 2019

Eng. Agríc.

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Integration of forage grasses with grain crops, such as maize, allows maintaining soil cover. The objective of this study was to evaluate the tensile strength, friability, and stability of soil aggregates in the maize and forage grass intercropping under no-tillage system. The study used a completely randomized block design with seven treatments and three replications. Undisturbed soil samples were collected in two seasons (2015 and 2016) at 0-0.10 m and 0.10-0.20 m soil depth. The following properties of soil aggregates were measured: tensile strength (TS), friability (F), gravimetric moisture (GM), weighted mean diameter (WMD), geometric mean diameter (GMD), and aggregate stability index (ASI). The intercropping of maize with Urochloa ruziziensis presented higher WMD and GMD at 0.10-0.20 m soil depth. Moreover, TS at 0.10-0.20 m soil depth was lower in maize without intercropping. The effects of the intercropping system on soil aggregates were better detected by aggregate stability than by TS or F. The intercropping of maize and U. ruziziensis improved soil aggregation to a higher extent than those systems with other forage grasses.

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Section: Resultsmentioning

confidence: 99%

Structural Properties of Soil in Maize and Forage Grass Intercropping Under No-Tillage in the Brazilian Cerrado

Cagna

Calábria²,

Filho

et al. 2019

Eng. Agríc.

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“…The soil depth from which a fully grown plant can extract water and nutrients Ecosystem resilience to drought [10] MANAGEMENT (8) Plant density (R) Number of plants per square meter [35,40] Crop performance (R) General evaluation that can include yield, growth rate, crop status [29] Field type (P) Classification based on production activities, resource allocation and management practices [33] Cropping history (P) Record of the crops cultivated on the land in the previous years [10] Intensity of crop rotation (P) Years before a crop is planted again in the same field [39] Diversity of crop rotation (P) Number of different crops in a rotation [39] Sowing date (P)…”

Section: Discussionmentioning

confidence: 99%

“…Seeding and spraying on crops planted across or perpendicular to slopes to follow the contours of a slope of a field [39] Table 1. Cont.…”

Section: Discussionmentioning

confidence: 99%

Integrated Use of Local and Technical Soil Quality Indicators and Participatory Techniques to Select Them. A Review of Bibliography and Analysis of Research Strategies and Outcomes

2020

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Climate change has strong impacts on soil conservation and agricultural productivity, with severe consequences on smallholders in developing countries, but virtually no research has been carried out so far on this issue. Therefore, it is necessary to foster the implementation of participatory projects to help communities deal with new difficulties. Sustainable soil management can reduce and even reverse land degradation, helping farmers to adapt to climate change effects. Progress toward sustainability cannot be implemented in small rural communities regardless of local knowledge, which can be addressed using participatory techniques. To this purpose the choice and use of indicators is essential to carry out correct assessments of soil vulnerability integrating local and technical knowledge. The purpose of this review was to study how the problem of building a set of integrated indicators to assess soil quality has been addressed so far and which participatory techniques have been more successfully employed, analyzing studies carried out in rural communities of developing countries. We found out that there is a lack of participated studies dealing with environmental issues. Those that do so address them only indirectly, being centered on present agricultural problems. The studies rarely feature a collaboration with social science experts, consequently the use of participatory techniques lacks protocols and a standardized nomenclature to help in the transfer and generalization of experiences. Women are rarely involved and nearly exclusively in African countries: this could be related to social and cultural conditions, but needs more attention. Different aspects need to be improved to help the implementation of a successful approach in future projects. This review provides a tool to facilitate future interdisciplinary research on integration of local and scientific knowledge and will help to devise more successful strategies to tackle the challenges posed by climate change to smallholders in developing countries.

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“…Neste sentido, os consórcios agroecológicos representam importantes alternativas, pois além de sustentarem a produção (SILVA et al, 2013), favorecem a estrutura do solo (ARAÚJO et al, 2013), a diversidade da fauna do solo e da flora, mesmo quando comparados às áreas de vegetação nativa (ALMEIDA et al, 2009).…”

Section: Introductionunclassified

“…Outros autores, como Alcázar et al (2019), também ressaltam a importância de avaliar os modelos de produção alternativos, de forma participativa, pois isso contribui para atingir as metas de sustentabilidade, além de favorecer a redução do êxodo rural. Neste sentido, Araújo et al (2013) enfatizam a importância da utilização de indicadores reconhecidos e possíveis de serem mensurados por agricultores, por ser uma abordagem inovadora que busca integrar conhecimentos científico e local.…”

Section: Introductionunclassified

Utilização De Indicadores Participativos De Qualidade Do Solo Em Sistemas De Produção Agrícola Familiar

Silva

Aguiar

Dantas³

et al. 2020

NAT

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Avaliar os sistemas agrícolas permite inferir sobre a sustentabilidade dos manejos praticados. Neste sentido, objetivou-se avaliar a qualidade do solo em diferentes sistemas de produção utilizando indicadores visuais. Foram avaliados oito consórcios tradicionais em diferentes períodos de adoção, localizados em três municípios cearenses. Utilizou-se metodologia participativa, escolhendo-se 12 indicadores de qualidade do solo, aos quais foram atribuídas notas de 1 a 10, de acordo com critérios pré-estabelecidos. Os dados foram avaliados por meio de análises descritivas e multivariada (Análise de componentes principais - ACP). Todos os consórcios avaliados apresentaram níveis satisfatórios de qualidade do solo com médias acima de cinco. Dois consórcios, um localizado em Choró (Consórcio 02 Choró - C2C) e outro em Acarape (Consórcio 01 Assentamento – C1A) se destacaram dos demais, apresentando as maiores médias (8,9). A inserção de práticas edáficas, a exemplo da aplicação de bagana de carnaúba como cobertura do solo favoreceu a qualidade do solo, contribuindo para sua conservação. Palavras-chave: bagana de carnaúba; metodologia participativa; cobertura do solo; agroecologia. Use of participative soil quality indicators in family agricultural production systems ABSTRACT: Evaluating agricultural systems allows inferring about the sustainability of the practices practiced. In this sense, the objective was to evaluate soil quality in different production systems using visual indicators. Eight traditional consortia were evaluated at different use periods, located in three counties in Ceará. Consortia are groups of many species of plants living in the same area. Participatory methodology was used, choosing 12 soil quality indicators, which were given scores from 1 to 10, according to pre-established criteria. The data were evaluated using descriptive and multivariate analysis (Principal Component Analysis - PCA). All consortia evaluated showed satisfactory levels of soil quality with averages above five. Two consortia, one located in Choró (Consortium 02 Choró - C2C) and another in Acarape (Consortium 01 Settlement - C1S) stood out from the others, with the highest averages (8.9). The insertion of edaphic practices, such as the application of carnauba bagana as soil cover, favored soil quality, contributing to its conservation. Keywords: carnauba bagana; participatory methodology; land cover; agroecology.

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Evaluation of soil structure using participatory methods in the semiarid region of Brazil

Cited by 4 publications

References 30 publications

Structural Properties of Soil in Maize and Forage Grass Intercropping Under No-Tillage in the Brazilian Cerrado

Structural Properties of Soil in Maize and Forage Grass Intercropping Under No-Tillage in the Brazilian Cerrado

Integrated Use of Local and Technical Soil Quality Indicators and Participatory Techniques to Select Them. A Review of Bibliography and Analysis of Research Strategies and Outcomes

Utilização De Indicadores Participativos De Qualidade Do Solo Em Sistemas De Produção Agrícola Familiar

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