Alterações físicas em Latossolos cultivados com plantas de cobertura em rotação com soja e milho

Borges, Wander Luis Barbosa; Souza, Isabela Malaquias Dalto de; Sá, Marco Eustáquio de; Alves, Marlene Cristina

doi:10.5039/agraria.v11i3a5380

Cited by 3 publications

(6 citation statements)

References 16 publications

(18 reference statements)

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“…Ma values lower than 0.10m 3 m -3 hinder root development due to low aeration (Vomocil and Folker 1961). In the present work, the treatment without cover crop resulted in Ma values higher than 0.10 m 3 m -3 , which could indicate soil degradation (Borges et al 2016).…”

Section: Discussionmentioning

confidence: 45%

“…There ideal levels for microporosity levels are 0.33 (m3 m -3 ) and total porosity lower than 0.50 (m3 m -3 ). Bonini et al (2015) and Borges et al (2016) reported that microporosity is associated with soil texture and little influenced by the management. They also stated that each soil has its support capacity; therefore, the changes depend on the soil structure, unlike macroporosity, which is directly affected by the management.…”

Section: Discussionmentioning

confidence: 99%

“…The use of amendments is fundamental to counteract the intensive that cultivation has decreased crop yields. With the intense use of the soil, crop residues should be allowed to remain in the field to avoid furthe degradation (Borges et al 2016). The No-tillage (NT) crop production practice effective strategy to improve the sustainability of agriculture in tropical and subtropical regions No tillage minimizing nutrient losses due to erosion (Rodrighero et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Cover crops, lime and gypsum influence on soil physical attributes

et al. 2021

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Cover crops promote nutrient cycling, and lime and gypsum can alter the soil physical attributes. This study aimed to evaluate the effect of lime and gypsum rates applied to a no-tillage system with addition of residues of three cover crops on the soil physical attributes. This experiment was carried out in chapadão do sul-ms. The treatments were comprised of three cover crops (Urochloa ruziziensis, fallow, and Pennisetum glaucum), with gypsum (0, 2.3 and 4.6 Mg ha-1) and lime applied at a dose of 0, 2, 4, 6 Mg ha-1).The attributes evaluated were: soil density, macroporosity, microporosity, total porosity and penetration resistance. The soil of the experiment was classified an Oxisol. Cover crops and lime and gypsum improved macroporosity, microporosity and total porosity at all depths, 0-0.2 m. Millet presented lower values for penetration resistance with the lime application and without gypsum application. No residual effect on soil density was detected for lime and gypsum application or cover crops in the 0.1-0.2 m layer. Brazilian Cerrado producers will have a well-defined management system to follow aiming at improving the soil physical attributes.

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Section: Discussionmentioning

confidence: 45%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cover crops, lime and gypsum influence on soil physical attributes

et al. 2021

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“…Esses resultados corroboram com os observados por Silva et al (2009), que observaram incrementos significativos para estes atributos físicos em experimento de campo de longa duração (5 anos), com uso do milheto e feijão-guandu. Enquanto Borges et al (2016) avaliando o comportamento de diferentes espécies, não verificaram diferenças entre as camadas de solos, destacando o efeito positivo dessas plantas, independente de profundidades.…”

Section: 2efeito Do Cultivo a Longo Prazo (5 Anos) De Espécies De Pla...unclassified

“…A agricultura brasileira conseguiu durante os últimos anos, grande avanço tecnológico, resultando em incrementos na produtividade e na melhoria das condições ambientais (BORGES et al, 2016). Em sistemas de produção, a incorporação de plantas com aptidão para adubação verde tem afetado positivamente a dinâmica da água e a qualidade dos solos agricultáveis (YANG et al, 2019), devido às inúmeras características agronômicas que apresentam.…”

Section: Introductionunclassified

Índice De Qualidade Física De Um Neossolo Regolítico Sob Cultivo Com Plantas De Cobertura

Nascimento,

Souza

2023

REVA

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Nos sistemas de produção, o uso de práticas conservacionistas (i.e., adubação verde, cobertura de solo) têm proporcionado aos solos agrícolas inúmeros benefícios, sendo os atributos do solo caracterizados como importantes bioindicadores. Neste contexto, objetivou-se com este estudo avaliar a qualidade física de um Neossolo Regolítico em função do manejo a longo prazo com uso de plantas de cobertura. Para tanto, foi estabelecido um experimento, em condições de campo, em delineamento em blocos ao acaso, com dez tratamentos e três blocos. Foram realizadas coletas de solo com estruturas indeformadas entre as camadas de 0,0-0,10 e 0,11-0,20 m para avaliação da densidade, porosidade total, microporosidade, macroporosidade e índice de qualidade física do solo. Na camada de 0,0-0,10 m foram observados maiores valores de microporosidade e porosidade total, e menores para a densidade do solo na camada de 0,11-0,20 m. Dentre as espécies estudadas, presume-se que a qualidade física do solo seja maior em áreas com cultivo de B. decumbens, C. ochroleuca, C. spectabilis, C. Juncea e M. pruriens.

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Physical Attributes of Soil and Wheat Productivity as a Function of Covering Plants and Mechanical Chiseling

Michelon,

Schott,

Junges

2023

COLLOQ AGRARIAE

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Soil compaction is a main physical problem in many growing areas. The use of ground cover crops for soil decompaction has been a subject of many studies. That has promising results both used alone and in association with mechanical chiseling. The objective of this study was to evaluate the influence of cover crops associated or not with mechanical chiseling, for that, on the physical attributes of the soil, and the wheat grain yield, in an Ultisol from the Central Depression of RS. The experimental design used was randomized blocks with 3 replications in each block, in a 2 x 5 factorial scheme. Where the factor A: soil chiseling - chiseled and non-chiseled, and P fator: cover crops – pigeon pea (Cajanus cajan), Crotalaria juncea (Crotalaria juncea), pearl millet (Pennisetum americanum) and velvet bean (Mucuna aterrima). The chiseling was adjusted to a depth of 0.30m, with 5 rods spaced 0.3m apart. The determinations carried out were: macroporosity, microporosity, total soil porosity, bulk density (BD), penetration resistance (RP), and grain yield. The physical attributes of the soil showed improvements in the second year evaluated, highlighting the treatments with pearl millet and velvet bean that showed higher differences. The maximum RP of the Soil was observed at a depth of 0.25m with 1.64 Mpa. There was a significant difference in the RP of the soil between the treatments of factor A at depths of 0.15 - 0.20 and 0.25m. Mechanical chiseling provided a 15% increase in wheat grain yield compared to non-chiseling treatment, while P factor treatments did not provide any gain.

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Alterações físicas em Latossolos cultivados com plantas de cobertura em rotação com soja e milho

Cited by 3 publications

References 16 publications

Cover crops, lime and gypsum influence on soil physical attributes

Cover crops, lime and gypsum influence on soil physical attributes

Índice De Qualidade Física De Um Neossolo Regolítico Sob Cultivo Com Plantas De Cobertura

Physical Attributes of Soil and Wheat Productivity as a Function of Covering Plants and Mechanical Chiseling

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