Soil Aeration
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Least limiting water range in Oxisol under two conservation tillage systems in sugarcane farming
ABSTRACT The Least Limiting Water Range (LLWR) is an indicator of soil physical quality, contributing in information to propose soil management systems in agricultural farming process. This work aimed to assess the usage of LLWR and critical soil bulk density for physical-water quality evaluations, as well as its effect on sugarcane farming under no-tillage
Revista Ceres. Publicado em: 2022
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2. Establishment and optimization of a hydroponic system for root morphological and nutritional analysis of citrus
ABSTRACT The hydroponic growth system is a convenient platform for studying whole plant physiology, especially for root morphological and nutritional analysis. However, we found that most hydroponic systems described in the literature are not suitable for citrus plants. In this study, a hydroponic system for citrus was designed, comprising three principal co
Sci. agric. (Piracicaba, Braz.). Publicado em: 04/11/2019
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3. Soil physical indicators of management systems in traditional agricultural areas under manure application
ABSTRACT Studies of the successive application of manure as fertilizer and its combined effect with long-term soil management systems are important to the identification of the interdependence of physical attributes. The aim of this study was to evaluate changes in the physical properties of a Rhodic Kandiudox under management systems employing successive ap
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-08
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4. Transpiration Reduction Factor and Soybean Yield in Low Land Soil with Ridge and Chiseling
ABSTRACT Water and oxygen deficiencies in the soybean crop cultivated on lowland soils are an important topic of research. The objective of this study was to investigate changes in water and oxygen supply and soybean yield caused by soil management in lowland soils. A soybean crop was grown under four soil conditions: no-tillage (NT), chiseling (CH), ridge t
Rev. Bras. Ciênc. Solo. Publicado em: 24/05/2018
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5. Is Structural Quality as Assessed by the "Profil Cultural" Method Related to Quantitative Indicators of Soil Physical Quality?
ABSTRACT Soil and crop management systems change the soil structure, thereby affecting soil quality. The “profil cultural” method (PCM) has been used to identify the effects of management systems on soil structure; however, few studies relate the structures identified by the PCM to quantitative indicators of soil structural quality. This study aimed to q
Rev. Bras. Ciênc. Solo. Publicado em: 22/02/2018
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6. Surface and incorporated liming effects on clay dispersion, water availability, and aeration capacity of a Dystrudept soil
ABSTRACT Liming represents a management procedure that can affect the soil structure and its thermodynamic processes. In this context, the aims of this study were to assess (i) the effects of the surface and incorporated liming on the clay dispersion, soil water availability, and aeration capacity; (ii) the influence of soil chemical alterations in its physi
Bragantia. Publicado em: 05/06/2017
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7. Composting sewage sludge with green waste from tree pruning
Sewage sludge (SS) has been widely used as organic fertilizer. However, its continuous use can cause imbalances in soil fertility as well as soil-water-plant system contamination. The study aimed to evaluate possible improvements in the chemical and microbiological characteristics of domestic SS, with low heavy metal contents and pathogens, through the compo
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-10
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8. Qualidade física de um Latossolo Vermelho sob plantio direto submetido à descompactação mecânica e biológica / Physical quality of non-tilled Oxisol subjected to mechanical and biological decompaction
O objetivo deste trabalho foi verificar os efeitos de práticas de descompactação em propriedades físicas de um Latossolo Vermelho distrófico, textura argilosa, após dezesseis anos em sistema plantio direto. Os tratamentos, aplicados em maio de 2009, consistiram de: plantio direto (PD), plantio direto com escarificação mecânica feita por subsolagem a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/04/2012
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9. DINÂMICA DO ARMAZENAMENTO E DA DISPONIBILIDADE DE ÁGUA EM ARGISSOLO SOB EUCALIPTO E CAMPO NATIVO / DYNAMICS OF STORAGE AND AVAILABILITY OF WATER IN ALFISOL UNDER EUCALYPTUS AND NATURAL GRASSLAND
A crescente demanda por produtos florestais tem propiciado o aumento das áreas com florestas plantadas no Brasil. O eucalipto é uma espécie florestal de rápido crescimento e é cultivada em larga escala, porém tem gerado polêmica devido às controvérsias existentes sobre o seu efeito na dinâmica da água do solo onde são implantados. Com o objetivo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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10. Compactação do solo: consequências para o crescimento vegetal.
ABSTRACT: Soil compactation is problem in modern agriculture. Over cultivation, intensive cropping and inappropriate soil management leads to soil compactation. There are important factors which directly affect plant growth, such as water, oxygen, temperature and mechanical resistance to seedling emergence or root growth. By the way, factors indirectly affec
Planaltina. Publicado em: 2011
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11. Concentrações de randônio nas águas subterrâneas, rochas e solos de Porto Alegre, RS
Many water-supply systems in Brazil utilize groundwaters at least as part of their networks. This is the case of Porto Alegre, capital of Rio Grande do Sul State, whose population is about 1.4 million inhabitants. However, there is little present knowledge in Brazil of the factors affecting Rn presence in the water supplied for end-users, despite the economi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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12. Soil air permeability in a Rhodic Hapludox under no-tillage and conventional tillage / Permeabilidade ao ar em Latossolo Vermelho sob plantio direto e preparo convencional
A permeabilidade ao ar (Ka) pode ser utilizada para avaliar alterações que ocorrem na estrutura do solo em virtude de diferentes sistemas de manejo. Este estudo testou a hipótese de que o menor revolvimento do solo sob sistema plantio direto resulta na formação de poros contínuos e melhor condição de aeração no solo. O objetivo do estudo foi avalia
Publicado em: 2010