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| Mafra,Maria Sueli Heberle; Cassol,Paulo Cezar; Albuquerque,Jackson Adriano; Correa,Juliano Corulli; Grohskopf,Marco André; Panisson,Jonas. |
| O objetivo deste trabalho foi estimar taxas de acúmulo de C orgânico em Latossolo Vermelho adubado com adubo solúvel e dejeto líquido de suíno e cultivado em plantio direto. O experimento foi conduzido em Campos Novos, SC, e os seguintes tratamentos foram aplicados anualmente: sem adubação; adubo solúvel; 25 m3 ha-1 de dejeto líquido + adubo solúvel; e doses de 25, 50, 100 e 200 m3 ha-1 de dejeto líquido. Foram determinados: os estoques de C orgânico (CO) na camada de 0-20 cm do solo; a adição de C pela fitomassa dos cultivos e pelo dejeto líquido de suíno; as taxas anuais de fixação de C; e os coeficientes de humificação (k1) e de mineralização (k2) de CO do solo. As taxas de fixação de C real e aparente aumentaram de acordo com as doses de dejeto, tendo... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Adubo orgânico; Fixação de carbono; Matéria orgânica; Sistema conservacionista; Suinocultura.. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000800630 |
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| Mafra,Maria Sueli Heberle; Cassol,Paulo Cezar; Albuquerque,Jackson Adriano; Grohskopf,Marco André; Andrade,Andreia Patrícia; Rauber,Luiz Paulo; Friederichs,Augusto. |
| The use of pig slurry (PS) as fertilizer can affect the soil quality and increase total stocks of soil organic carbon (TOC). However, the effects of PS on TOC amount and forms in the soil are not fully understood, particularly in areas under no-tillage (NT). The purpose of this study was to determine TOC contents and stocks in the particulate (POC) and mineral-associated C fractions (MAC) of an Oxisol after nine years of maize-oat rotation under NT, with annual applications of PS, soluble fertilizer and combined fertilization (pig slurry + soluble fertilizer). The experiment was initiated in 2001 in Campos Novos, Santa Catarina, with the following treatments: PS at rates of 0 (without fertilization - PS0); 25 (PS25); 50 (PS50); 100 (PS100); and 200 m3... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manure; Swine slurry; Carbon fixation; Soil organic matter; No-tillage. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000401161 |
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| Grohskopf,Marco André; Cassol,Paulo Cezar; Corrêa,Juliano Corulli; Albuquerque,Jackson Adriano; Ernani,Paulo Roberto; Mafra,Maria Sueli Heberle; Mafra,Álvaro Luiz. |
| ABSTRACT Nutrient content in soil solution may vary in response to the applied amount of pig slurry (PS). Thus, the aim of this research was to evaluate the nutrient content in soil solution and its relationship to nutritional status and yield of corn under 12 years of annual fertilization with increasing doses of PS, soluble mineral fertilizer (MF) and PS combined with MF. The experiment was conducted under field conditions in a Latossolo Vermelho Distroférrico (Typic Hapludox). The treatments consisted of pig slurry at annual rates of 50 and 100 m3 ha-1 (PS50 and PS100), soluble mineral fertilizer (MF), and pig slurry at a rate of 25 m3 ha-1 complemented with mineral fertilizer (PS25 + MF), distributed in a randomized block design. Soil solution was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic fertilizer; Manure; Leaching. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100531 |
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| Grohskopf,Marco André; Cassol,Paulo Cezar; Correa,Juliano Corulli; Mafra,Maria Sueli Heberle; Panisson,Jonas. |
| The application of pig slurry may have a different effect on nitrogen dynamics in soil compared to mineral fertilization. Thus, the aim of this study was to determine the different forms of organic N in a Latossolo Vermelho distroférrico (Typic Hapludox) and their relationship to N uptake by crops in response to 10 years of annual application of pig slurry and mineral fertilizer. The treatments were application rates of 0, 25, 50, 100, and 200 m3 ha-1 of pig slurry, in addition to mineral fertilizer, organized in a randomized block design with four replications. The N contents were determined in the plant tissue and in the forms of total N and acid hydrolyzed fractions: ammonium-N, hexosamine-N, α-amino-N, amide-N, and unidentified-N. Annual application of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manure; N availability; N fractionation. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000100127 |
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| Zalamena,Jovani; Cassol,Paulo Cezar; Brunetto,Gustavo; Grohskopf,Marco André; Mafra,Maria Sueli Heberle. |
| Espécies perenes ou anuais de plantas de cobertura podem ser cultivadas em vinhedos para proteger a superfície do solo e também controlar a disponibilidade de água e nutrientes à videira. O trabalho objetivou avaliar o estado nutricional, o vigor e a produção de uva em videiras consorciadas com espécies anuais e perenes de plantas de cobertura submetidas a dois manejos. O experimento foi conduzido nas safras de 2009/2010 e 2010/2011, em vinhedo da cultivar Cabernet Sauvignon, em São Joaquim (SC), sobre um Cambissolo Húmico Distrófico. Os tratamentos foram: testemunha, caracterizado pela presença de plantas espontâneas controladas por dessecação na linha e por roçadas nas entrelinhas; a espécie perene de planta de cobertura, festuca (Festuca arundinacea);... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adubo verde; Nutrição mineral; Crescimento vegetativo; Componentes de produção; Vitis vinifera. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000400030 |
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| Rauber,Luiz Paulo; Andrade,Andréia Patrícia; Friederichs,Augusto; Mafra,Álvaro Luiz; Baretta,Dilmar; Rosa,Márcio Gonçalves da; Mafra,Maria Sueli Heberle; Correa,Juliano Corulli. |
| 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 applications of pig slurry and poultry litter, and select physical indicators that distinguish these systems using canonical discriminant analysis (CDA). The systems consisting of treatments including land use, management and the application time of organic fertilizers are described as follows: silage maize under no-tillage (NT-M7 years); silage maize under conventional tillage (CT-M20 years); annual... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crop system; Organic fertilization; Soil quality. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000400354 |
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| Andrade,Andréia Patricia; Rauber,Luiz Paulo; Mafra,Álvaro Luiz; Baretta,Dilmar; Rosa,Márcio Gonçalves da; Friederichs,Augusto; Mafra,Maria Sueli Heberle; Casara,Ana Cláudia. |
| ABSTRACT: Successive applications of pig slurry and poultry manure can improve the soil structure, according to the land use conditions and amounts applied. This study evaluated the effect of manure fertilization on the physical properties and organic carbon of a Rhodic Kandiudox. Treatments included land use and management and time of pig slurry and poultry litter application, namely: native forest (NF); yerba mate after 20 years of animal waste application (YM20); pasture after 15 years of application (P15); grassland after 20 years of manuring (PP20); grassland after 3 years of manuring (P3); pasture without application (P0), maize after 20 years of application (M20); and maize after 7 years of application (M7). Soil samples were collected in the 0-5,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal waste; Soil quality; Structure. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000500809 |
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| Mafra,Maria Sueli Heberle; Lunardi,Willian Galdino; Siegloch,Ana Emilia; Rech,Ângela Fonseca; Rech,Tássio Dresch; Campos,Mari Lucia; Kempka,Aniela Pinto; Werner,Simone Silmara. |
| ABSTRACT: Urban environments are contaminated in many ways with persistent organic and inorganic pollutants as a result of anthropogenic activities, endangering human health and natural resources. The objective of the present study was to evaluate the soil contamination by cobalt (Co), chromium (Cr), copper (Cu), manganese (Mn), nickel (Ni), lead (Pb), and zinc (Zn) in 10 vegetable gardens of urban schools located near or on Botucatu sandstone outcrops of Guarani Aquifer in the urban areas of Lages, Santa Catarina, Brazil. In each garden, three soil samples at each position (in the soil immediately outside and the soil in the garden) were collected at a depth of 0-20 cm. The ISO 11466 method was used to extract the metals. Inductively coupled plasma... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmentally sensitive areas; Urban gardens; Environmental contamination. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300252 |
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