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| Corrêa,Adriany Rodrigues; Montanari,Rafael; Laura,Valdemir Antônio; Melotto,Alex Marcel; Silva,Evelize Nayara Santana da; Pellin,Douglas Martins Pereira; Santos,Anderson Secco dos. |
| In Brazil, grazing mismanagement may lead to soil and pasture degradation. To impede this process, integrated cropping systems such as silvopasture have been an effective alternative, allied with precision agriculture based on soil mapping for site-specific management. In this study, we aimed to define the soil property that best sheds light on the variability of eucalyptus and forage yield. The experiment was conducted in the 2011/12 crop year in Ribas do Rio Pardo, Mato Grosso do Sul State, Brazil. We analyzed linear and spatial correlations between eucalyptus traits and physical properties of a Typic Quartzipsamment at two depths (0.00-0.10 and 0.10-0.20 m). For that purpose, we set up a geostatistical grid for collection at 72 points. Gravimetric... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geostatistics; Resistance to penetration; Soil management; Agricultural sustainability. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000200438 |
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| Cunha, João Paulo Arantes Rodrigues da; UFU; Cascão, Vinicius Nery; UFU; Reis, Elton Fialho dos; UEG. |
| O objetivo deste trabalho foi avaliar a compactação do solo causada pelo tráfego de trator, em um Latossolo Vermelho distroférrico submetido a diferentes tipos de preparo. O delineamento experimental utilizado foi o de blocos casualizados, com arranjo de parcelas subdivididas, considerando os tipos de preparo de solo como tratamentos principais e o número de passadas do trator como tratamentos secundários. Como tratamentos de preparo de solo, além de uma testemunha sem movimentação, foram avaliados: aração com 18 cm de profundidade, aração com 18 cm de profundidade, seguida de gradagem a 10 cm e subsolagem a 40 cm de profundidade. Após o preparo, foi avaliada a resistência do solo à penetração, por meio de um penetrômetro eletrônico, antes da passagem do... |
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Palavras-chave: 5.01.00.00-9 Agronomia física do solo; Preparo do solo; Resistência à penetração 5.01.03.02-4 (Mecanização Agrícola) soil physical characteristics; Soil tillage system; Resistance to penetration. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/819 |
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| Mattei, Eloisa; Rabello de Oliveira, Paulo Sérgio; Costa Crusciol, Carlos Alexandre; Rocha de Moraes Rego, Carlos Augusto; Piano, Jeferson Tiago; da Silveira, Lucas. |
| Os sistemas integrados de produção lavoura-pecuária (SIPAs) em associação ao sistema de semeadura direta, sofrem ação do pisoteio animal ou do tráfego intenso de máquinas agrícolas, podendo resultar em alterações nas propriedades físicas do solo. O objetivo deste trabalho foi avaliar o efeito da adubação nitrogenada e manejos das forrageiras tropicais nas propriedades físicas do solo. O experimento foi realizado entre outubro de 2017 e janeiro de 2020, em Marechal Cândido Rondon – PR, em blocos ao acaso, com parcelas sub-subdivididas com uma testemunha adicional e quatro repetições. As parcelas foram constituídas por duas espécies forrageiras consorciadas com o milho: Urochloa brizantha e Magathyrsus maximum, mais a testemunha adicional (milho solteiro).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Porosity; Soil physical quality; Resistance to penetration; Integrated systems; Porosidade; Qualidade física do solo; Resistência à penetração; Sistemas integrados. |
| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6318 |
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| Cortez,Jorge W.; Pusch,Maiara; Silva,Rouverson P. da; Rufino,Mauricio V.; Anghinoni,Matheus. |
| ABSTRACT The way the soil is managed can influence its structuring and, consequently, crop yield. Thus, this study aimed to evaluate the effect caused by the management systems plowing followed by two intermediate harrowing operations, intermediate harrowing, chiseling, chiseling followed by intermediate harrowing, cross chiseling followed by intermediate harrowing, and non-tillage on soil and agronomic attributes of the soybean crop. A randomized block design with four replications was used. The percentage of soil cover, soil resistance to penetration, number of plants per meter, longitudinal distribution of seedlings, and soybean yield were evaluated. The data were submitted to analysis of variance by the Tukey test at 5% probability, and use of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Resistance to penetration; Geostatistics; Soil tillage. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000400490 |
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| Petry,Henrique Belmonte; Mazurana,Michael; Marodin,Gilmar Arduíno Bettio; Levien,Renato; Anghinoni,Ibanor; Gianello,Clésio; Schwarz,Sergio Francisco. |
| ABSTRACT Root growth can be limited by physical and chemical conditions of the soil. Compacted and acidic soils, where there is an occurrence of exchangeable Al, constitute barriers to use of the soil by plant roots. The hypothesis of this study was that physical and chemical properties of the inter-row soil of a peach orchard influence the root distribution of different rootstocks. The aim of this study was to describe and register the soil physical and chemical properties and root distribution in the soil profile of the inter-row of seven years old mature peach (Prunus persica) orchard. Samples of soil (classified as an Argissolo Vermelho Distrófico típico [Rhodic Paleudult] with 180 g kg-1 clay, 120 g kg-1 silt, and 700 g kg-1 sand) and roots were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Prunus persica; Resistance to penetration; Exchangeable aluminum; Root density. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100412 |
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| Beutler,Amauri Nelson; Centurion,José Frederico; Silva,Alvaro Pires da. |
| The objective of this study was determine the resistance to penetration (PR), least limiting water range (LLWR) and critical bulk density (Db-crit) for soybean yield in a medium-textured oxisol (Haplustox). The treatments represented the soil compaction by passing a tractor over the site 0, 1, 2, 4, and 6 times, with 4 replications in a randomized experimental design. Samples were collected from 0.02-0.05, 0.07-0.10 and 0.15-0.18 m depths. Soybean (Glycine max cv. Embrapa 48) was sowed in December 2002. Plant height, number of pods, aerial dry matter, weight of 100 seeds, and the yield in 3.6 m² plots were recorded. Soybean yield started reduction at the PR of 0.85 MPa and Db of 1.48 Mg m-3. The LLWR was limited in highest part by water content at field... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Water content; Resistance to penetration; Bulk density. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800002 |
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