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| Registros recuperados: 174 | |
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| Pedron,Fabrício de Araújo; Lourenzi,Cledimar Rogério; Ceretta,Carlos Aberto; Lorensi,Juliana; Cancian,Adriana. |
| ABSTRACT: Organic fertilization effect on physical-chemical properties in no-tillage systems in tropical soils has been widely investigated, but little is known about the effects of this practice on the mineralogy of the clay fraction. This study aimed to evaluate the clay-fraction mineralogy of two subtropical soils, fertilized with organic residues in long-term no-tillage systems. An Alfisol fertilized with 0, 40, and 80 m3 ha-1 yr-1 pig slurry was evaluated for eight years, and an Oxisol with 0, 8, and 16 Mg ha-1 of wood shavings with pig slurry, for six years. Soil samples from the layers 0.00-0.04, 0.04-0.08, and 0.16-0.20 m were collected and subjected to chemical extractions with DCB and oxalate, X-ray diffractometry, and thermal analysis. No... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil management; Soil minerals; Pig slurry. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100413 |
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| Barbieri,Diogo Mazza; Marques Júnior,José; Siqueira,Diego Silva; Teixeira,Daniel De Bortoli; Panosso,Alan Rodrigo; Pereira,Gener Tadeu; La Scala Junior,Newton. |
| Improvements in working conditions, sustainable production, and competitiveness have led to substantial changes in sugarcane harvesting systems. Such changes have altered a number of soil properties, including iron oxides and organic matter, as well as some chemical properties, such as the maximum P adsorption capacity of the soil. The aim of this study was to characterize the relationship between iron oxides and the quality of organic matter in sugarcane harvesting systems. For that purpose, two 1 ha plots in mechanically and manually harvested fields were used to obtain soil samples from the 0.00-0.25 m soil layer at 126 different points. The mineralogical, chemical, and physical results were subjected to descriptive statistical analyses, such as the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Degree of humification; Geochemistry; Soil management; Sustainable agriculture. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400010 |
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| Andrade,Andréia Patrícia; Mafra,Álvaro Luiz; Baldo,Gizele Rejane; Piccolla,Cristiano Dela; Bertol,Ildegardis; Albuquerque,Jackson Adriano. |
| Soil is the basis underlying the food production chain and it is fundamental to improve and conserve its productive capacity. Imbalanced exploitation can degrade agricultural areas physical, chemical and biologically. The objective of this study was to evaluate some soil physical properties and their relation with organic carbon contents of a Humic Dystrudept under conventional tillage (CT) and no-tillage (NT), for 12 years in rotation (r) and succession (s) cropping systems. The experiment was carried out in Lages, SC (latitude 27 º 49 ' S and longitude 50 º 20 ' W, 937 m asl), using crop sequences of bean-fallow-maize-fallow-soybean in conventional tillage rotation; maize-fallow in conventional tillage succession; bean-oat-maize-turnip-soybean-vetch in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crop rotation; Crop succession; No-tillage; Soil management. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000100022 |
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| Cunha Neto,Felipe Vieira da; Correia,Maria Elizabeth Fernandes; Pereira,Guilherme Henrique Almeida; Pereira,Marcos Gervasio; Leles,Paulo Sérgio dos Santos. |
| The interactions between soil invertebrates and environmental variations are relatively unknown in the assessment of soil quality. The objective of this study was to evaluate soil quality in areas with different soil management systems, based on soil fauna as indicator, in Além Paraíba, Minas Gerais, Brazil. The soil invertebrate community was sampled using pitfall traps, in the dry and rainy seasons, from areas with five vegetation types (acacia, mimosa, eucalyptus, pasture, and secondary forest). The abundance of organisms and the total and average richness, Shannon's diversity index, the Pielou uniformity index, and change index V were determined. The fauna was most abundant in the areas of secondary forest and mimosa plantations in the dry season... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Edaphic community; Soil management; Biological indicators. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000500004 |
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| Rosa,Jaqueline Dalla; Mafra,Alvaro Luiz; Medeiros,João Carlos; Albuquerque,Jackson Adriano; Miquelluti,Davi José; Nohatto,Marcos André; Ferreira,Evandro Zacca; Oliveira,Odoni Loris Pereira de. |
| The use of cover crops in vineyards is a conservation practice with the purpose of reducing soil erosion and improving the soil physical quality. The objective of this study was to evaluate cover crop species and management systems on soil physical properties and grape yield. The experiment was carried out in Bento Gonçalves, RS, Southern Brazil, on a Haplic Cambisol, in a vineyard established in 1989, using White and Rose Niagara grape (Vitis labrusca L.) in a horizontal, overhead trellis system. The treatments were established in 2002, consisting of three cover crops: spontaneous species (SS), black oat (Avena strigosa Schreb) (BO), and a mixture of white clover (Trifolium repens L.), red clover (Trifolium pratense L.) and annual rye-grass (Lolium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil management; Soil structure; Vineyards; Viticulture. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000500024 |
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| Fernandes,Carolina; Corá,José Eduardo; Marcelo,Adolfo Valente. |
| Sugarcane production should be integrated with crop diversification with a view to competitive and sustainable results in economic, social and environmental aspects. The purpose of this study was to assess the influence of different soil uses during the sugarcane fallow period on the chemical and physical properties of eutroferric Red Latosol - LVef (Oxisol) and Acric Latosol - LVw (Acric Oxisol), in Jaboticabal, São Paulo State, Brazil (21º14'05'' S, 48º17'09'' W, 600 m asl). A randomized block design was used with five replications and four treatments, consisting of different soil uses (crops) in the sugarcane fallow period: soybean only, soybean/fallow/soybean, soybean/millet/soybean, and soybean/sunn hemp/soybean. After two soybean crops, the LVef... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soybean; Millet; Sunn hemp; Soil management; Cover crops. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000100029 |
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| Veras,Márcia de Sousa; Ramos,Maria Lucrécia Gerosa; Oliveira,Daiana Nara Santos; Figueiredo,Cícero Célio de; Carvalho,Arminda Moreira de; Pulrolnik,Karina; Souza,Kleberson Worslley de. |
| ABSTRACT The use of cover crops has recently increased and represents an essential practice for the sustainability of no-tillage systems in the Cerrado region. However, there is little information on the effects of nitrogen fertilization and cover crop use on nitrogen soil fractions. This study assessed changes in the N forms in soil cropped to cover crops prior to corn growing. The experiment consisted of a randomized complete block design arranged in split-plots with three replications. Cover crops were tested in the plots, and the N topdressing fertilization was assessed in the subplots. The following cover species were planted in succession to corn for eight years: Urochloa ruziziensis, Canavalia brasiliensis M. ex Benth, Cajanus cajan (L.) Millsp, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil management; Plant nutrition; Fertilization and nutrition of annual crops. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100508 |
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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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| Santos,Maria Aparecida do Nascimento dos; Panachuki,Elói; Alves Sobrinho,Teodorico; Oliveira,Paulo Tarso Sanches de; Rodrigues,Dulce Buchala Bicca. |
| Water infiltration in the soil is an important hydrological process that occurs at the interface of the soil-atmosphere system; thus, the soil management practice used has a strong influence on this process. The aim of this study was to evaluate water infiltration in the soil and compare equations for estimating the water infiltration rate in an Ultisol after harvesting common bean (Phaseolus vulgaris L.) under simulated rainfall. Field tests with a rainfall simulator were carried out in three soil management systems: minimum tillage (MT), conventional tillage (CT), and no tillage (NT). In NT, four levels of plant residue on the soil surface were evaluated: 0, 3, 6, and 9 t ha-1. The models of Kostiakov-Lewis, Horton, and Philip were used to estimate the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Runoff; Soil management; Rainfall simulator. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500026 |
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| Marasca,Indiamara; Lemos,Stella Vannucci; Silva,Reginaldo Barbosa; Guerra,Saulo Philipe Sebastião; Lanças,Kleber Pereira. |
| ABSTRACT Soil tillage that maintains the productivity of sugarcane plantations, providing an area for the root development and without traffic on crop rows, has given rise to new technologies in rural areas. The purpose of this study was to evaluate the soil physical properties in two sugarcane plantations, one of which was prepared with deep tilling and the other with conventional tillage. The experiment was conducted in Lençóis Paulista, São Paulo State. Soil penetration resistance and relative density were analyzed. The cone index was lower in deep-tilled soil without traffic in all layers, than in deep-tilled soil with traffic and in conventional tillage. In both tillage treatments, the relative density values were acceptable in the 0.00-0.15 m soil... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil management; Soil tillage; Subsoiler; Traffic control system; Saccharum spp. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501490 |
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| Chioderoli,Carlos Alessandro; Mello,Luiz Malcom Mano de; Noronha,Rafael Henrique de Freitas; Pariz,Cristiano Magalhães; Lima,Ronaldo Cintra. |
| The Technologies setting at Agricultural production system have the main characteristics the vertical productivity, reduced costs, soil physical, chemical and biological improvement to promote production sustainable growth. Thus, the study aimed to determine the variability and the linear and special correlations between the plant and soil attributes in order to select and indicate good representation of soil physical quality for forage productivity. In the growing season of 2006, on the Fazenda Bonança in Pereira Barreto (SP), the productivity of autumn corn forage (FDM) in an irrigated no-tillage system and the soil physical properties were analyzed. The purpose was to study the variability and the linear and spatial correlations between the plant and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil physical properties; Soil management; Geostatistics; No-tillage; Forage crops. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000300008 |
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| Marcelo,Adolfo Valente; Corá,José Eduardo; Fernandes,Carolina; Martins,Márcio dos Reis; Jorge,Ricardo Falqueto. |
| Decomposing crop residues in no-tillage system can alter soil chemical properties, which may consequently influence the productivity of succession crops. The objective of this study was to evaluate soil chemical properties and soybean, maize and rice yield, grown in the summer, after winter crops in a no-tillage system. The experiment was carried out in Jaboticabal, SP, Brazil (21 ° 15 ' 22 '' S; 48 ° 18 ' 58 '' W) on a Red Latosol (Oxisol), in a completely randomized block design, in strip plots with three replications. The treatments consisted of four summer crop sequences (maize monocrop, soybean monocrop, soybean/maize rotation and rice/bean/cotton rotation) combined with seven winter crops (maize, sunflower, oilseed radish, pearl millet, pigeon pea,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Winter crops; Crop rotation; Cover crops; Soil management. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000200019 |
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| Tiecher,Tales; Santos,Danilo Rheinheimer dos; Kaminski,João; Calegari,Ademir. |
| The cultivation of crops with different capacity of P uptake and use under long-term soil tillage systems can affect the distribution of P cycling and inorganic forms in the soil, as a result of higher or lower use efficiency of P applied in fertilizers. The purpose of this study was to evaluate the effect of long-term cultivation of different winter species under tillage systems on the distribution of inorganic P forms in the soil. In 1986, the experiment was initiated with six winter crops (blue lupin, hairy vetch, oat, oilseed radish, wheat and fallow) on a Rhodic Hapludox in southwestern Paraná, under no-tillage (NT) and conventional tillage (CT). The application of phosphate fertilizer in NT rows increased inorganic P in the labile and moderately... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: No tillage; Conventional tillage; Lability; Phosphorus fractionation; Cover crops; Soil management. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000100028 |
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| Zuffo,Valmir José; Pires,Fabio Ribeiro; Bonomo,Robson; Vitória,Edney Leandro da; Celin Filho,Ademar; Santos,Eduardo Oliveira de Jesus. |
| Tillage systems are a key element of the technology of crop production, both with a view to crop yield and from the perspective of soil conservation and sustainability of the production system. The aim of this paper was to evaluate the effects of five tillage systems on the physical properties of a cohesive Yellow Argisol. The experiment was installed in the field on January 21, 2011 and lasted 260 days, in an area previously used as pasture with Brachiaria grass without liming or fertilization, but irrigated by a low pressure spray system. The treatments, in five replications and in a randomized block design, consisted of: 1) disk plow (twice) + disk harrow + ridge-furrow tillage (raising a ridge along the planting row), 135 days after transplanting (DP +... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carica papaya; Cohesive soils; Coastal plains; Soil management; Soil physics. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000500026 |
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| Nascente,Adriano Stephan; Li,Yuncong; Crusciol,Carlos Alexandre Costa. |
| Soil aggregation and the distribution of total organic carbon (TOC) may be affected by soil tillage and cover crops. The objective of this study was to determine the effects of crop rotation with cover crops on soil aggregation, TOC concentration in the soil aggregate fractions, and soil bulk density under a no-tillage system (NTS) and conventional tillage system (CTS, one plowing and two disking). This was a three-year study with cover crop/rice/cover crop/rice rotations in the Brazilian Cerrado. A randomized block experimental design with six treatments and three replications was used. The cover crops (treatments) were: fallow, Panicum maximum, Brachiaria ruziziensis, Brachiaria brizantha, and millet (Pennisetum glaucum). An additional treatment, fallow... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria brizantha; Brachiaria ruziziensis; No-tillage system; Panicum maximum; Pennisetum glaucum; Soil management. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300871 |
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| Fidalski,Jonez; Auler,Pedro Antonio Martins; Beraldo,José Marcos Garrido; Marur,Celso Jamil; Faria,Rogério Teixeira de; Barbosa,Graziela Moraes de Cesare. |
| The increased availability of soil water is important for the management of non-irrigated orange orchards. The objective of this study was to evaluate the availability of soil water in a Haplorthox (Rhodic Ferralsol) under different tillage systems used for orchard plantation, mulch management and rootstocks in a "Pêra" orange orchard in northwest Paraná, Brazil. An experiment in a split-split-plot design was established in 2002, in an area cultivated with Brachiaria brizantha grass in which three tillage systems (no tillage, conventional tillage and strip-tillage) were used for orchard plantation. This grass was mowed twice a year between the rows, representing two mulch managements in the split plots (no mulching and mulching in the plant rows). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria brizantha; No tillage; Soil management; Soil texture; Time domain reflectometry. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000300033 |
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| Registros recuperados: 174 | |
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