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Research paper thumbnail of Irrigação com água salina em quatro cultivares de fava

Revista Ciencia Agronomica, 2021

Lima bean (Phaseolus lunatus L.) is a crop with great economic and social importance for the Braz... more Lima bean (Phaseolus lunatus L.) is a crop with great economic and social importance for the Brazilian Northeast. The water crisis in recent years has affected crop production, especially in the semi-arid region. Thus, the use of lower quality waters (saline) becomes a necessary alternative, but it can affect the growth and yield of agricultural crops. The objective of this study was to evaluate the effect of salt stress on the initial growth and biomass accumulation of four lima bean cultivars. The experiment was carried out in a protected environment in a completely randomized experimental design in a 5 x 4 factorial scheme, with four replicates. The treatments consisted of 5 salinity levels in irrigation water with electrical conductivity (ECw) of 1.0, 2.0, 3.0, 4.0 and 5.0 dS m-1 and four cultivars: Branquinha (C1), Manteiguinha (C2), Espírito Santo (C3) and Orelha-de-vó (C4). The variables analyzed were plant height, number of leaves, leaf area, stem diameter, root length, shoot dry mass, root dry mass and total dry mass. At the end of the experiment, electrical conductivity of the soil saturation extract was evaluated. The cultivar Manteiguinha was more tolerant to salinity than the others, considering the variables number of leaves and plant height. However, it was not possible to identify variations in the tolerance of the four lima bean cultivars based on biomass production, indicating the need for further studies that can prove the existence of genetic variability in relation to the effects of salt stress on this species

Research paper thumbnail of Irrigação com água salina em diferentes cultivares de fava

Revista Ciencia Agronomica, May 11, 2021

Lima bean (Phaseolus lunatus L.) is a crop with great economic and social importance for the Braz... more Lima bean (Phaseolus lunatus L.) is a crop with great economic and social importance for the Brazilian Northeast. The water crisis in recent years has affected crop production, especially in the semi-arid region. Thus, the use of lower quality waters (saline) becomes a necessary alternative, but it can affect the growth and yield of agricultural crops. The objective of this study was to evaluate the effect of salt stress on the initial growth and biomass accumulation of four lima bean cultivars. The experiment was carried out in a protected environment in a completely randomized experimental design in a 5 x 4 factorial scheme, with four replicates. The treatments consisted of 5 salinity levels in irrigation water with electrical conductivity (ECw) of 1.0, 2.0, 3.0, 4.0 and 5.0 dS m-1 and four cultivars: Branquinha (C1), Manteiguinha (C2), Espírito Santo (C3) and Orelha-de-vó (C4). The variables analyzed were plant height, number of leaves, leaf area, stem diameter, root length, shoot dry mass, root dry mass and total dry mass. At the end of the experiment, electrical conductivity of the soil saturation extract was evaluated. The cultivar Manteiguinha was more tolerant to salinity than the others, considering the variables number of leaves and plant height. However, it was not possible to identify variations in the tolerance of the four lima bean cultivars based on biomass production, indicating the need for further studies that can prove the existence of genetic variability in relation to the effects of salt stress on this species

Research paper thumbnail of Soil Structural Quality and Relationships With Root Properties in Single and Integrated Farming Systems

Frontiers in Environmental Science

Single farming systems (SFS) such as monocultures may negatively affect soil structural quality. ... more Single farming systems (SFS) such as monocultures may negatively affect soil structural quality. This study tested the hypothesis that integrated farming systems (IFS), i.e., the combination of cropping and forestry and/or livestock farming, improves soil structural quality, root development and soil organic carbon. An experimental area was set up in 2012 at the Canguiri experimental farm belonging to the Federal University of Paraná, Southern Brazil. The soils are predominantly Ferralsols. The experimental treatments representing different farming systems, organized in a random block design with three replicates, were: Forestry (F), Conventional Crop Production (C), Livestock (L), and integrated Crop-Forestry (CF), Crop-Livestock (CL), Livestock-Forestry (LF), and Crop-Livestock-Forestry (CLF). In situ measurements and sampling were carried out in the 0–0.3 m layer during summer 2019/20, and included soil penetration resistance (PR), soil structural quality based on visual evaluati...

Research paper thumbnail of Irrigação com água salina em quatro cultivares de fava

Revista Ciencia Agronomica, 2021

Research paper thumbnail of Educação Do Campo, Desenvolvimento e a Relação Com a Formação Do Agrônomoeducação Do Campo, Desenvolvimento e a Relação Com a Formação Do Agrônomo

DEMOCRATIZAÇÃO DO CONHECIMENTO E VALORIZAÇÃO PROFISSIONAL: CAMINHOS PARA O DESENVOLVIMENTO TECNOLÓGICO E SOCIAL

Este trabalho aborda a questão da educação do campo com a formação do agrônomo na perspectiva do ... more Este trabalho aborda a questão da educação do campo com a formação do agrônomo na perspectiva do desenvolvimento no meio rural. Por essa razão, é baseado na revisão de literatura, bibliografia e vivência, com o objetivo de compreender as ações que envolvem a educação do campo, o desenvolvimento e o papel do engenheiro agrônomo nas escolas do campo dos municípios de Ocara e Itarema. Em consonância a atuação do agrônomo em vários setores, a realidade local com a necessidade de uma educação diferenciada o agrônomo é presente nas escolas do campo visitadas, protagonizando o que torna relevante o seu contributo para instigar os discentes a escreverem as suas próprias histórias, reconhecer a sua realidade, cultivando a ideia de preservar os recursos naturais, explorando agroecologicamente de forma sustentável para promover a soberania alimentar e a permanência no campo. Conduzir o público a educação do campo pode ser a garantia de novos tempos na história da educação, políticas

Research paper thumbnail of Irrigação com água salina em quatro cultivares de fava

Revista Ciencia Agronomica, 2021

Lima bean (Phaseolus lunatus L.) is a crop with great economic and social importance for the Braz... more Lima bean (Phaseolus lunatus L.) is a crop with great economic and social importance for the Brazilian Northeast. The water crisis in recent years has affected crop production, especially in the semi-arid region. Thus, the use of lower quality waters (saline) becomes a necessary alternative, but it can affect the growth and yield of agricultural crops. The objective of this study was to evaluate the effect of salt stress on the initial growth and biomass accumulation of four lima bean cultivars. The experiment was carried out in a protected environment in a completely randomized experimental design in a 5 x 4 factorial scheme, with four replicates. The treatments consisted of 5 salinity levels in irrigation water with electrical conductivity (ECw) of 1.0, 2.0, 3.0, 4.0 and 5.0 dS m-1 and four cultivars: Branquinha (C1), Manteiguinha (C2), Espírito Santo (C3) and Orelha-de-vó (C4). The variables analyzed were plant height, number of leaves, leaf area, stem diameter, root length, shoot dry mass, root dry mass and total dry mass. At the end of the experiment, electrical conductivity of the soil saturation extract was evaluated. The cultivar Manteiguinha was more tolerant to salinity than the others, considering the variables number of leaves and plant height. However, it was not possible to identify variations in the tolerance of the four lima bean cultivars based on biomass production, indicating the need for further studies that can prove the existence of genetic variability in relation to the effects of salt stress on this species

Research paper thumbnail of Irrigação com água salina em diferentes cultivares de fava

Revista Ciencia Agronomica, May 11, 2021

Lima bean (Phaseolus lunatus L.) is a crop with great economic and social importance for the Braz... more Lima bean (Phaseolus lunatus L.) is a crop with great economic and social importance for the Brazilian Northeast. The water crisis in recent years has affected crop production, especially in the semi-arid region. Thus, the use of lower quality waters (saline) becomes a necessary alternative, but it can affect the growth and yield of agricultural crops. The objective of this study was to evaluate the effect of salt stress on the initial growth and biomass accumulation of four lima bean cultivars. The experiment was carried out in a protected environment in a completely randomized experimental design in a 5 x 4 factorial scheme, with four replicates. The treatments consisted of 5 salinity levels in irrigation water with electrical conductivity (ECw) of 1.0, 2.0, 3.0, 4.0 and 5.0 dS m-1 and four cultivars: Branquinha (C1), Manteiguinha (C2), Espírito Santo (C3) and Orelha-de-vó (C4). The variables analyzed were plant height, number of leaves, leaf area, stem diameter, root length, shoot dry mass, root dry mass and total dry mass. At the end of the experiment, electrical conductivity of the soil saturation extract was evaluated. The cultivar Manteiguinha was more tolerant to salinity than the others, considering the variables number of leaves and plant height. However, it was not possible to identify variations in the tolerance of the four lima bean cultivars based on biomass production, indicating the need for further studies that can prove the existence of genetic variability in relation to the effects of salt stress on this species

Research paper thumbnail of Soil Structural Quality and Relationships With Root Properties in Single and Integrated Farming Systems

Frontiers in Environmental Science

Single farming systems (SFS) such as monocultures may negatively affect soil structural quality. ... more Single farming systems (SFS) such as monocultures may negatively affect soil structural quality. This study tested the hypothesis that integrated farming systems (IFS), i.e., the combination of cropping and forestry and/or livestock farming, improves soil structural quality, root development and soil organic carbon. An experimental area was set up in 2012 at the Canguiri experimental farm belonging to the Federal University of Paraná, Southern Brazil. The soils are predominantly Ferralsols. The experimental treatments representing different farming systems, organized in a random block design with three replicates, were: Forestry (F), Conventional Crop Production (C), Livestock (L), and integrated Crop-Forestry (CF), Crop-Livestock (CL), Livestock-Forestry (LF), and Crop-Livestock-Forestry (CLF). In situ measurements and sampling were carried out in the 0–0.3 m layer during summer 2019/20, and included soil penetration resistance (PR), soil structural quality based on visual evaluati...

Research paper thumbnail of Irrigação com água salina em quatro cultivares de fava

Revista Ciencia Agronomica, 2021

Research paper thumbnail of Educação Do Campo, Desenvolvimento e a Relação Com a Formação Do Agrônomoeducação Do Campo, Desenvolvimento e a Relação Com a Formação Do Agrônomo

DEMOCRATIZAÇÃO DO CONHECIMENTO E VALORIZAÇÃO PROFISSIONAL: CAMINHOS PARA O DESENVOLVIMENTO TECNOLÓGICO E SOCIAL

Este trabalho aborda a questão da educação do campo com a formação do agrônomo na perspectiva do ... more Este trabalho aborda a questão da educação do campo com a formação do agrônomo na perspectiva do desenvolvimento no meio rural. Por essa razão, é baseado na revisão de literatura, bibliografia e vivência, com o objetivo de compreender as ações que envolvem a educação do campo, o desenvolvimento e o papel do engenheiro agrônomo nas escolas do campo dos municípios de Ocara e Itarema. Em consonância a atuação do agrônomo em vários setores, a realidade local com a necessidade de uma educação diferenciada o agrônomo é presente nas escolas do campo visitadas, protagonizando o que torna relevante o seu contributo para instigar os discentes a escreverem as suas próprias histórias, reconhecer a sua realidade, cultivando a ideia de preservar os recursos naturais, explorando agroecologicamente de forma sustentável para promover a soberania alimentar e a permanência no campo. Conduzir o público a educação do campo pode ser a garantia de novos tempos na história da educação, políticas