8 results on '"Puga, Aline Peregrina"'
Search Results
2. Jack Bean Development in Multimetal Contaminated Soil Amended with Coffee Waste-Derived Biochars.
- Author
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Carnier, Ruan, Coscione, Aline Renée, Delaqua, Douglas, Puga, Aline Peregrina, and de Abreu, Cleide Aparecida
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COFFEE grounds ,METAL content of soils ,HEAVY metals ,SOIL pollution ,COFFEE ,COFFEE waste - Abstract
Coffee waste-derived biochar was found to immobilize heavy metals in contaminated soil, although there are few studies involving these materials. Given the large amount of waste generated in the coffee industry, this presents a relevant opportunity to contribute to the circular economy and environmental sustainability. Therefore, the objective of this study was to evaluate the effects of the application of biochars derived from coffee grounds and coffee parchment in the remediation of a Cd, Zn and Pb contaminated soil and at the development of jack beans (Canavalia ensiformis) in this area's revegetation. The biochars were pyrolyzed at 700 °C, and the treatments were: contaminated soil (CT); contaminated soil + calcium carbonate (CaCO
3 ); contaminated soil + 5% (weight (w)/weitght (w)) coffee ground biochar and contaminated soil + 5% (w/w) coffee parchment biochar. These treatments were incubated for 90 days, followed by the cultivation of jack beans for 60 days. Soil samples, soil solution and plants were analyzed for nutrients and heavy metals. The addition of coffee grounds and coffee parchment biochars significantly reduced the contents of heavy metals in the soil compared to the Control (32.13 and 42.95%, respectively, for Zn; 26.28 and 33.06%, respectively, for Cd and 28.63 and 29.67%, respectively, for Pb), all of which had a superior performance than the CaCO3 treatment. Thus, following the observed reduction in the soil soluble fraction of metals, its uptake by the plants was also reduced, especially limiting Cd and Pb accumulation in plant dry matter. In addition, coffee parchment biochar promoted a greater accumulation of nutrients in the shoots, i.e., for K and P (1450 and 21.5 mg pot−1 , respectively, dry matter basis) compared to the control (54.4 and 9.3 mg pot−1 , respectively). Therefore, coffee parchment biochar use in association with jack beans may represent a viable tool for the remediation of metal contamination concomitantly with revegetation of the contaminated area. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
3. Nitrogen availability and ammonia volatilization in biochar-based fertilizers.
- Author
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Puga, Aline Peregrina, Queiroz, Matheus Castro de Almeida, Ligo, Marcos Antonio Vieira, Carvalho, Cristina Silva, Pires, Adriana Marlene Moreno, Marcatto, Juliana de Oliveira Santos, and Andrade, Cristiano Alberto de
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FERTILIZERS , *SOIL leaching , *AMMONIA , *SUSTAINABLE agriculture , *UREA as fertilizer , *BIOCHAR - Abstract
Increasing N use efficiency is an important strategy to intensify sustainable agriculture, optimize nutrient use, and reduce N loss to the environment via different routes. Owing to its physicochemical properties, biochar can be used as an additive to produce biochar-based fertilizers (BFs) with increased efficiency. We investigated N availability and ammonia loss from 17 BFs (3%–38% N). N availability and release from BFs were evaluated by water extraction experiments and soil column leaching. BFs (5%–10% N) had an average of 64% solubilized N after five extractions, whereas urea had 98% solubilized N. However, BFs produced with urea released N more slowly in soil, with the release rate 60% less than that of urea. Ammonia volatilization was evaluated using a 22-d experiment, where N was applied to soil surface (pH = 4.4). We compared urea, BF granulated with urea, and BF produced by coating urea granules with acidified or unacidified biochar. Compared to urea, biochar-based fertilizers granulated with urea and urea granules coated with acidified biochar significantly reduced (t-test at 5%) ammonia volatilization by 14%. The results demonstrated the potential of BFs as enhanced efficiency fertilizers. Therefore, BFs might be a good option to mitigate N loss. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
4. Avaliação nutricional da alface cultivada em soluções nutritivas suprimidas de macronutrientes
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Almeida, Thiago Batista Firmato de, Prado, Renato de Mello, Ribeiro Correia, Marcus André, Puga, Aline Peregrina, and Barbosa, José Carlos
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lcsh:Biology (General) ,Lactuca sativa ,Nutrição mineral ,lcsh:Q ,lcsh:Science ,lcsh:QH301-705.5 ,Deficiência nutricional - Abstract
A alface é a mais popular das hortaliças folhosas, sendo conhecida mundialmente e o seu consumo ocorre principalmente na forma “in natura”. Objetivou-se avaliar o efeito da omissão de macronutrientes no crescimento e no estado nutricional da alface cv. Verônica, bem como descrever sintomas visuais de deficiência nutricional. Os tratamentos foram: solução completa e omissão individual de N, P, K, Ca, Mg e S, sob delineamento inteiramente casualizado, com três repetições. As plantas foram cultivadas em solução nutritiva de Hoagland & Arnon, em vasos (8L). Aos 56 dias após o transplantio, foram avaliados: a altura das plantas, o número de folhas, a área foliar, o índice SPAD, a matéria seca da parte aérea, das raízes e planta inteira, os teores dos macronutrientes da parte aérea e raízes e descrição das desordens nutricionais. As omissões dos nutrientes afetaram as variáveis de crescimento. Os teores de nutrientes observados nas plantas de alface do tratamento com solução nutritiva completa e da omissão, na parte aérea foram, respectivamente, N= 23,2 – 9,5; P= 5,4 – 1,3; K= 58,9 – 3,2; Ca= 12,1 – 3,6; Mg= 5,5 – 0,7 e S= 3,2 – 1,5g.kg-1. As omissões dos macronutrientes causaram prejuízos, pois afetaram a nutrição da hortaliça que refletiu em alterações morfológicas, traduzidas como sintomas característicos de deficiência de cada nutriente.A alface é a mais popular das hortaliças folhosas, sendo conhecida mundialmente e o seu consumo ocorre principalmente na forma “in natura”. Objetivou-se avaliar o efeito da omissão de macronutrientes no crescimento tratamentos foram: solução completa e omissão individual de N, P, K, Ca, Mg e S, sob delineamento inteiramente casualizado, com três repetições. As plantas foram cultivadas em solução nutritiva de Hoagland & Arnon, em vasos (8L). Aos 56 dias após o transplantio, foram avaliados: a altura das plantas, o número de folhas, a área foliar, o índice SPAD, a matéria seca da parte aérea, das raízes e planta inteira, os teores dos macronutrientes da parte aérea e raízes e descrição das desordens nutricionais. As omissões dos nutrientes afetaram as variáveis de crescimento. Os teores de nutrientes observados nas plantas de alface do tratamento com solução nutritiva completa e da omissão, na parte aérea foram, respectivamente, N= 23,2 – 9,5; P= 5,4 – 1,3; K= 58,9 – 3,2; Ca= 12,1 – 3,6; Mg= 5,5 – 0,7 e S= 3,2 – 1,5g.kg-1. As omissões dos macronutrientes causaram prejuízos, pois !" # $
- Published
- 2011
5. The effects of fresh versus aged biochar on the leaching of metals from multi-element contaminated soils
- Author
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REES, Frédéric, Puga, Aline Peregrina, Beesley, Luke, Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Instituto Agronômico de Campinas, and The James Hutton Institute
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[SDV]Life Sciences [q-bio] ,[SDE]Environmental Sciences - Abstract
International audience; Biochar has been proposed as an effective soil amendment for the management of metal(loid)s [1] via a number of mechanisms: directly sorbed on its surface, by the occlusion of soil particles and, in particular, by modifying soil chemistry such as pH or dissolved organic carbon (DOC). An increase of soil pH induced by biochar has been shown to reduce metal solubility, while a release of labile compounds from biochar has resulted in soil metal leaching [2-4]. Different results may therefore be expected depending on the use of "fresh" or "aged" biochar, subject to weathering which can modify the surface and chemical properties of the biochar. Column leaching experiments were conducted in August 2014 by Frédéric Rees and Dr. Luke Beesley with the help of Aline Peregrina Puga at the James Hutton Institute of Aberdeen (UK), with the support of COST Action TD1107. One agricultural soil contaminated by repeated sewage sludge amendments was tested together with one biochar, used as purchased or aged by exposure to natural rainfall. Instead of amending soils with biochar in a single column, a new protocol was tested (Fig. 1), using one column for each material, linked in a loop system so that the retention of metals from soils by the biochar and the modifications of the biochar on the eluent fed back directly to the contaminated soils could be elucidated. Samples of the leaching solution were regularly collected after the soil column and the biochar column, which enabled the chemical evolution of the soil-biochar systems towards equilibrium to be monitored. Chemical equilibration between soils and biochar was fast, as seen by the identical final pH at the different sampling points of the system. Fresh and aged biochar retained metals released from the agricultural soil and decreased further metal release by increasing soil pH. Fresh biochar became however saturated with Zn at the end of the experiment, while aged biochar did not, indicating that aged biochar had a greater sorption capacity for metals. In conclusion, this work indicated that the simple ageing of biochar before its use as a sorbent amendment can increase its metal retention capabilities.
- Published
- 2015
6. Ways of applying zinc to maize plants growing in Oxisol: Effects on the soil, on plant nutrition and on yield
- Author
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Puga, Aline Peregrina, Prado, Renato de Mello [UNESP], Fonseca, Ivana Machado, do Vale, Diego Wyllyam, Avalhães, Cíntia Carla, Instituto Agronômico (IAC), Universidade Estadual Paulista (Unesp), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Universidade de São Paulo (USP), and CENA
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application methods ,Zea mays L ,los métodos de aplicación ,Zn ,micronutrient ,micronutrientes - Abstract
The way of applying zinc can influence the zinc uptake and productivity of crops, especially cereals that have high demand for this nutrient. The aim of this study is to evaluate methods of Zn application on soil, nutritional status and productivity of maize. For this, an experiment was undertaken at FCAV/UNESP, Jaboticabal-SP, in Oxisol clay (DTPA on Zn: 0.5 mg dm-3) with maize (hybrid Simple Impact), from December through May 2009. Nine treatments with three doses of Zn in soil banded application (in furrows) and three doses of Zn by incorporation in soil (0-20 cm depth), foliar application, seed application and control (no Zn). The treatments were arranged in a randomized block design with four replications. Regardless of the method, Zn application promoted higher contents of this micronutrient in soil and higher accumulation in the shoots as well as increasing Zn in the maize grain. However, it did not affect the nutritional status and yield of the maize. The Zn application in the soil resulted in a greater Zn uptake by plants and maize yield, compared to Zn application in the plant by seed or foliar. La manera de aplicar zinc puede influir en la absorción de zinc y productividad de los cultivos, especialmente los cereales que tienen alta demanda de este nutriente. El objetivo de este estudio es evaluar los métodos de aplicación de Zn en el suelo, el estado nutricional y el rendimiento de maíz. Para ello, se realizó un experimento en FCAV/UNESP, Jaboticabal en Oxisol arcilloso (Zn-DTPA: 0,5 mg dm-3), el maíz (híbrido de impacto simple) de diciembre a mayo de 2009. Se aplicaron nueve tratamientos con tres dosis de Zn en forma localizada (en las crestas) y tres dosis de Zn mediante la incorporación en el suelo (0-20 cm), foliar, las semillas y el control de la aplicación (sin Zn). Los tratamientos se dispusieron en un diseño de bloques al azar con cuatro repeticiones. Independientemente del método, la aplicación de Zn promovió mayores niveles de zinc mayor acumulación en el suelo y en el aire, así como aumento de Zn en el grano. Sin embargo, no afectó el estado nutricional y el rendimiento de maíz. La aplicación de Zn resultó en un incremento de la absorción de zinc por las plantas y el rendimiento de maíz en comparación con la aplicación de Zn a la semilla de la planta o forma de hoja.
- Published
- 2013
7. Carbon stability and mitigation of fertilizer induced N2O emissions in soil amended with biochar.
- Author
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Grutzmacher, Priscila, Puga, Aline Peregrina, Bibar, Maria Paula Silveira, Coscione, Aline Renée, Packer, Ana Paula, and de Andrade, Cristiano Alberto
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SOIL amendments , *CARBON in soils , *CARBON sequestration , *NITROUS oxide , *FERTILIZERS , *BIOCHAR - Abstract
Biochar is a promising tool for an efficient and low environmental impact agriculture since can offer both soil carbon (C) sequestration and mitigation of nitrous oxide (N 2 O) emissions. The extent of biochar C stability after soil amendment and efficiency in reducing N 2 O emissions from an external nitrogen (N) source were accessed through laboratory incubations. A clay loam soil was amended with chicken manure (CM), sewage sludge (SS), eucalyptus sawdust (ES) and filter cake (FC) feedstocks and corresponding slow-pyrolysis (400 °C) biochars at 5 g C kg − 1 soil in combination with two N fertilizer rates (0 and 140 mg N kg − 1 soil). Carbon dioxide (CO 2 ) and N 2 O emissions were measured during 60 days. Biochars and feedstocks CO 2 emissions were described by an exponential first order kinetics model. For C mineralization an interaction effect was observed for feedstock source and organic amendment. Lower values of mineralizable C was found for biochars than corresponding feedstocks, except for ES. Carbon losses in 60 days of incubation totaled between 0.8 and 9.4% and 2.4 and 32% for biochars and feedstocks, respectively. Regarding to N 2 O emissions, only CM-biochar impacted emissions with a two-fold increase in non-fertilized soil. When NH 4 NO 3 was co-applied, biochars reduced fertilizer induced N 2 O emissions, reaching a seven-fold reduction in SS-biochar treatment. The fertilizer emission factor (EF) decreased with biochar amendments as well, varying between 0.01 and 0.08% of the fertilizer N emitted as N 2 O, which shows the biochar potential to reduce fertilizer induced N 2 O emissions, with major reduction by SS-biochar mitigating 87% of the soil-fertilizer emissions. Such potential could be explored by designing biochars based on feedstock chemical and structural properties, including a mixed feedstock source biochar that promotes C sequestration and mitigates N 2 O emissions. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
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8. Biochar-based nitrogen fertilizers: Greenhouse gas emissions, use efficiency, and maize yield in tropical soils.
- Author
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Puga, Aline Peregrina, Grutzmacher, Priscila, Cerri, Carlos Eduardo Pellegrino, Ribeirinho, Victor Sanches, and Andrade, Cristiano Alberto de
- Abstract
• BC-based fertilizers with 51% of BC had 21% higher maize yield than urea. • Grain N was 16% higher with BC-based fertilizers than with mineral sources. • BC-based fertilizers replacing urea result in more favorable carbon balances. • BN 51/10 use promoted soil C sequestration and helped mitigate net greenhouse gases. The sustainable development of agriculture depends on increasing N use efficiency (NUE) and consequently reducing N losses from different sources, such as NH 3 volatilization, NO 3 − leaching, and N 2 O emissions. While the chemical and physical properties of biochar (BC) in fertilizers have been evaluated to increase NUE, a lack of information exists regarding the effects of BC amendments in tropical soils. We performed a one-year field experiment with tropical soil to evaluate the effects of BC-based N fertilizers (BN) on maize yield and on greenhouse gas (GHG) emissions. The treatments consisted of five fertilizers: ammonium nitrate (AN), urea (U), BN 51/10 (51% BC, 10% N), BN 40/17 (40% BC, 17% N), BN 29/20 (29% BC, 20% N), and a control (without N fertilizer). The N fertilizers (80 kg N ha−1) were broadcast 20 days after sowing. Yield, grain N uptake, NUE, ammonia volatilization, and GHG emissions were measured. The results demonstrated the potential of BNs to enhance the efficiency of the fertilizers. BN 51/10 and BN 40/17 had an average maize yield that was 26% higher than that of U, and BN 51/10 resulted in a NUE that was 12% higher than what was observed for U. Both the effects on yield and NUE were attributed to lower N release rates of the BN-amended fertilizers compared to that of the conventional soluble N sources. The BC-based fertilizers presented better environmental performance, and BN 51/10 showed the lowest emission intensity when C sequestration by BC was not considered, with a value that was 14% lower than that of the U treatment. When considering C sequestration by BC, the emission intensity of the C equivalents demonstrated that all BNs presented C sequestration that differed from that of the mineral N sources. BC-based nitrogen fertilizers may have promising applications for sustainable agricultural development by mitigating N losses and increasing C stocks. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
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