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Article: Organic acids as complexing agents for iron and their effects on the nutrition and growth of maize and soybean

Justi, Marina / Silva, Carlos Alberto / Rosa, Sara Dantas

Archiv für Acker- und Pflanzenbau und Bodenkunde. 2022 Aug. 24, v. 68, no. 10

2022

Abstract: Synthetic chelating agents have high cost and low biodegradation in the environment; thus, the use of natural complexing agents for iron increases the sustainability in crop production. The aim of this study was to verify the efficiency of natural ... ...

Abstract	Synthetic chelating agents have high cost and low biodegradation in the environment; thus, the use of natural complexing agents for iron increases the sustainability in crop production. The aim of this study was to verify the efficiency of natural organic acids added to the nutrient solution on the Fe acquisition. For that purpose, two experiments were carried out using soybean and maize. Citric acid (CA), malic acid (MA), tartaric acid (TA), and oxalic acid (OA) were used as complexing agents for iron. Fe-EDTA (ethylenediaminetetraacetic acid) and FeSO₄ were also tested. Soluble Fe and chemical speciation in a nutrient solution were determined. Organic acids maintained less complexed Fe in the nutrient solution than EDTA, but the complexed Fe fraction was not associated with the efficiency of the Fe organic acids in supplying Fe to plants. Maize and soybean treated with Fe-MA and Fe-CA had reduced plant development. For maize, the TA treatment at both SRs increased Fe accumulation and promoted Fe translocation similar to EDTA. For soybean, Fe-OA at both SRs promoted biomass, Fe accumulation, and Fe translocation similar to EDTA. Therefore, Fe complexes were able to assure plant growth and nutrition and showed effectiveness depending on the plant species.
Keywords	EDTA (chelating agent) ; biodegradation ; chemical speciation ; citric acid ; corn ; crop production ; iron ; malic acid ; nutrient solutions ; oxalic acid ; plant development ; plant growth ; soybeans ; tartaric acid
Language	English
Dates of publication	2022-0824
Size	p. 1369-1384.
Publishing place	Taylor & Francis
Document type	Article
ZDB-ID	1132910-5
ISSN	1476-3567 ; 0365-0340
ISSN (online)	1476-3567
ISSN	0365-0340
DOI	10.1080/03650340.2021.1893308
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Biochar-Based Phosphate Fertilizers: Synthesis, Properties, Kinetics of P Release and Recommendation for Crops Grown in Oxisols

Morais, Everton Geraldo de / Jindo, Keiji / Silva, Carlos Alberto

Agronomy. 2023 Jan. 21, v. 13, no. 2

2023

Abstract: The agronomic efficiency of biochar-based fertilizers (BBFs) relies on the synthesis routes, properties, and interaction with the soil–plant system. In our study, BBFs were produced from coffee husk, low-grade acidulated phosphate rock with and without ... ...

Abstract	The agronomic efficiency of biochar-based fertilizers (BBFs) relies on the synthesis routes, properties, and interaction with the soil–plant system. In our study, BBFs were produced from coffee husk, low-grade acidulated phosphate rock with and without the addition of magnesium (Mg). BBFs were characterized for infrared analysis and the kinetics of phosphorus (P) release in water or citric acid (CA). The agronomic performance of BBFs was tested by growing maize and, in sequence, brachiaria grass in pots filled with two Oxisols with contrasting soil organic matter (SOM) content. Using the same chemical stoichiometric ratio, nitric acid was more effective than hydrochloric and sulfuric acids, creating BBFs with enhanced agronomic performance. The use of Mg in the BBFs synthesis reduced the P released in water. Phosphorus released in CA leachates positively correlated with the P in the shoot of both plants. BBFs produced using nitric acid had higher residual effect on brachiaria grass grown in the Oxisol with the highest SOM. Our outcomes show that the P rate for maize and brachiaria grass should be considered based on P soluble in neutral ammonium citrate plus water in BBFs. BBFs is an alternative to improve the use efficiency of P in Oxisols.
Keywords	Oxisols ; agronomic traits ; agronomy ; ammonium ; citrates ; citric acid ; corn ; grasses ; hulls ; magnesium ; nitric acid ; phosphorus ; residual effects ; rock phosphate ; soil organic matter ; stoichiometry
Language	English
Dates of publication	2023-0121
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article ; Online
ZDB-ID	2607043-1
ISSN	2073-4395
ISSN	2073-4395
DOI	10.3390/agronomy13020326
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Biochar-Based Phosphate Fertilizers

de Morais, Everton G. / Jindo, Keiji / Silva, Carlos Alberto

Agronomy

Synthesis, Properties, Kinetics of P Release and Recommendation for Crops Grown in Oxisols

2023 Volume 13, Issue 2

Abstract	The agronomic efficiency of biochar-based fertilizers (BBFs) relies on the synthesis routes, properties, and interaction with the soil–plant system. In our study, BBFs were produced from coffee husk, low-grade acidulated phosphate rock with and without the addition of magnesium (Mg). BBFs were characterized for infrared analysis and the kinetics of phosphorus (P) release in water or citric acid (CA). The agronomic performance of BBFs was tested by growing maize and, in sequence, brachiaria grass in pots filled with two Oxisols with contrasting soil organic matter (SOM) content. Using the same chemical stoichiometric ratio, nitric acid was more effective than hydrochloric and sulfuric acids, creating BBFs with enhanced agronomic performance. The use of Mg in the BBFs synthesis reduced the P released in water. Phosphorus released in CA leachates positively correlated with the P in the shoot of both plants. BBFs produced using nitric acid had higher residual effect on brachiaria grass grown in the Oxisol with the highest SOM. Our outcomes show that the P rate for maize and brachiaria grass should be considered based on P soluble in neutral ammonium citrate plus water in BBFs. BBFs is an alternative to improve the use efficiency of P in Oxisols.
Keywords	P–Mg interaction ; gradual P release ; organomineral fertilizer ; soil P residual effect ; soil solution
Subject code	500
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	2607043-1
ISSN	2073-4395
ISSN	2073-4395
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

2024 Volume 13, Issue 8

Abstract: Sesame, an oilseed plant with multiple applications, is susceptible to infestations by the stink ... ...

Abstract	Sesame, an oilseed plant with multiple applications, is susceptible to infestations by the stink bug
Language	English
Publishing date	2024-04-09
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2704341-1
ISSN	2223-7747
ISSN	2223-7747
DOI	10.3390/plants13081060
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Humic Acid Improves Zn Fertilization in Oxisols Successively Cultivated with Maize-Brachiaria.

Morais, Everton Geraldo de / Silva, Carlos Alberto / Jindo, Keiji

Molecules (Basel, Switzerland)

2021 Volume 26, Issue 15

Abstract: Zinc (Zn) is an essential micronutrient for plant growth, and Zn deficiency is a global issue, especially in tropical soils. This study aimed to investigate the effects of humic acid (HA) and the Zn addition (Zn sulfate + HA) on the growth of maize and ... ...

Abstract	Zinc (Zn) is an essential micronutrient for plant growth, and Zn deficiency is a global issue, especially in tropical soils. This study aimed to investigate the effects of humic acid (HA) and the Zn addition (Zn sulfate + HA) on the growth of maize and brachiaria in two contrasting Oxisols. The potential complexation of Zn sulfate by HA was evaluated by Fourier-transform infrared (FTIR) spectroscopy analysis. Zinc content and its availability in solution and the shoot and root biomass of maize and brachiaria were determined. FTIR spectroscopy revealed the complexation of Zn sulfate by HA through its S and C functional groups. In both Oxisols, solution Zn increased due to the combined use of Zn and HA. In a soil type-dependent manner, maize biomass and Zn in its shoots were affected only by the exclusive use of Zn fertilization. In the Yellow Oxisol, brachiaria growth and Zn accumulated in its shoot were positively affected by the combined use of Zn fertilization with HA. In the Oxisol with lower organic matter content, HA can assure adequate supplying of residual Zn, while increasing growth of brachiaria cultivated in sequence to maize.
MeSH term(s)	Brachiaria/drug effects ; Brachiaria/growth & development ; Brazil ; Fertilizers/analysis ; Humic Substances/analysis ; Hydrogen-Ion Concentration ; Plant Roots/drug effects ; Plant Roots/growth & development ; Plant Shoots/drug effects ; Plant Shoots/growth & development ; Principal Component Analysis ; Soil/chemistry ; Spectroscopy, Fourier Transform Infrared ; Zea mays/drug effects ; Zea mays/growth & development ; Zinc Sulfate/analysis ; Zinc Sulfate/chemistry ; Zinc Sulfate/pharmacology
Chemical Substances	Fertilizers ; Humic Substances ; Soil ; Zinc Sulfate (7733-02-0)
Language	English
Publishing date	2021-07-29
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules26154588
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Article ; Online: Electronic and transport properties of new carbon nanoribbons with 5-8-5 carbon rings: tuning stability by the edge shape effect.

Mota, Elder Augusto Viana / da Silva, Carlos Alberto Brito / Del Nero, Jordan

Physical chemistry chemical physics : PCCP

2022

Abstract: We predicted the existence of five carbon nanoribbons based on POPGraphene, by first-principles calculations. We investigated the role of the shape of the edges in stability, structural, electronic, and transport properties. Density functional theory ( ... ...

Abstract	We predicted the existence of five carbon nanoribbons based on POPGraphene, by first-principles calculations. We investigated the role of the shape of the edges in stability, structural, electronic, and transport properties. Density functional theory (DFT) was implemented to relax the unit cell nanoribbons, and DFT combined with non-equilibrium Greens functions was used to obtain the transport properties of molecular devices. Our results strongly suggest that all nanoribbons are stable, and can be feasibly obtained through experiment. Furthermore, the edge termination with pentarings is an important factor in the stability of nanoribbons. The electronic properties show that the three zigzag nanoribbons have a metallic behavior and the two armchair ones are semiconductors, but with a very tiny indirect bandgap of 0.053 eV and 0.050 eV. The transport properties show that the presence of partially filled steep bands crossing deeper into the Fermi level triggers high conductivity in molecular devices and the presence of flat bands decreases the device conductivity. The presence of sub-bandgap regions triggers the rise of negative differential resistance (NDR) regions in the device operation. The molecular device behavior is strongly dependent on the shape of the edges, presenting characteristics of field effect transistors (FETs), lighting emitting diodes (LEDs), or resonant tunneling diodes (RTDs), depending on the edge termination and operation range.
Language	English
Publishing date	2022-12-05
Publishing country	England
Document type	Journal Article
ZDB-ID	1476244-4
ISSN	1463-9084 ; 1463-9076
ISSN (online)	1463-9084
ISSN	1463-9076
DOI	10.1039/d2cp04003d
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Article ; Online: Biochar N Content, Pools and Aromaticity as Affected by Feedstock and Pyrolysis Temperature

de Oliveira Paiva, Igor / de Morais, Everton Geraldo / Jindo, Keiji / Silva, Carlos Alberto

Waste and Biomass Valorization (2024) ; ISSN: 1877-2641

2024

Abstract: Forms and availability of nitrogen (N) in biochars are influenced by both feedstock and pyrolysis temperature. We conducted an assessment to examine how feedstock composition and pyrolysis temperature impact crucial properties and nitrogen (N) content ... ...

Abstract	Forms and availability of nitrogen (N) in biochars are influenced by both feedstock and pyrolysis temperature. We conducted an assessment to examine how feedstock composition and pyrolysis temperature impact crucial properties and nitrogen (N) content and distributions within biochars. We subjected feedstocks with 0.2% to 8.9% N to pyrolysis at 300 °C and 750 °C. Biochars derived from different feedstock types (n = 11) were assessed for pH, electrical conductivity (EC), total C, water-soluble C (WSC) content, yield, total and available N content, as well as for C and N retention. We examined the aromaticity of the biochars by analyzing the ratio of specific FTIR spectra bands. As the pyrolysis temperature increased, we observed a decrease in yield, total N content, and N in the forms of N-NH4+ and N-NO3−. Concurrently, with the intensification of the charring process, the WSC content experienced a sharp reduction. Most biochars experienced an increase in carbon (C) content along with a notable decrease in total nitrogen (N) content as the pyrolysis process intensified. As charring conditions intensified, available N forms, such as N-NH4+ and N-NO3−, were lost. Biochars obtained from pine bark, eucalyptus sawdust, sugarcane bagasse, and bamboo exhibited high C content, low N content, and C:N ratios exceeding 100:1. The losses of C and N were independent of each other, with N chemical species demonstrating higher volatility compared to C compounds. At a temperature of 300 °C, the extent of N loss during pyrolysis depended on the feedstock, and the N content in the resulting biochar could be predicted based on the N content in the original feedstock. Pyrolysis at 300 °C retained a substantial amount of N in biochars derived from chicken manure, castor oil cake, chitosan, and shrimp carcass. This preserved nitrogen can serve as a valuable nitrogen source for crop applications.
Keywords	Food waste ; Heterocyclic N ; Labile N ; N volatilization ; Water-soluble carbon
Subject code	660
Language	English
Publishing country	nl
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: PLS Regression Based on ATR-FTIR to Predict Organomineral Fertilizers Properties and Nutrient Pools

de Morais, Everton Geraldo / Maluf, Henrique José Guimarães Moreira / Silva, Carlos Alberto / de Paula, Leonardo Henrique Duarte

Communications in Soil Science and Plant Analysis. 2023 May 15, v. 54, no. 9 p.1250-1265

2023

Abstract: Enrichment of organic residues with mineral fertilizers is a sustainable route to produce high agronomic value organomineral fertilizers (OMFs). OMFs agronomic value was conditioned by the properties and nutrients pools accessed by chemical analysis. ... ...

Abstract	Enrichment of organic residues with mineral fertilizers is a sustainable route to produce high agronomic value organomineral fertilizers (OMFs). OMFs agronomic value was conditioned by the properties and nutrients pools accessed by chemical analysis. Partial least squares (PLS) regression based on infrared analysis is a fast and alternative technique to assess the properties of OMFs, while replacing laborious, non-environmental-friendly, time-consuming, and high-cost conventional lab analytical procedures. OMFs were produced by composting of mixtures of different proportions of low-grade and soluble P sources with chicken manure and coffee husk for 150 days. After composting, the OMFs were dried and analyzed for: pH in CaCl₂, electrical conductivity, total contents of C, P, N, and K, and C soluble in water, as well as for fertilizer-P soluble in water, citric acid, and neutral ammonium citrate. The compost MAP-based OMFs had a greater agronomic value than low-grade rock P-based OMFs. PLS regression models based on the ATR-FTIR spectral signature were a suitable tool to predict all OMFs chemical properties and nutrient pools evaluated through lab conventional analytical procedures. The good performance, robustness, and non-random correlation of PLS regression models were attested by their high coefficient of determination (R²) to calibration (0.92–0.99), cross-validation (0.87–0.99), and prediction capacity (0.89–0.99) combined with the lowest values of the root-mean-square error (RMSE) and reduced values of R² (0.19–0.44), and to high values of RMSE to y-randomization. PLS based on ATR-FTIR is a rapid and alternative chemometric approach to assess the properties and nutrients pools of OMFs.
Keywords	ammonium ; chemical analysis ; chemometrics ; citrates ; citric acid ; composts ; electrical conductivity ; hulls ; pH ; plant analysis ; poultry manure ; prediction ; ATR-FTIR ; compost-based fertilizers ; composting ; multivariate calibration
Language	English
Dates of publication	2023-0515
Size	p. 1250-1265.
Publishing place	Taylor & Francis
Document type	Article ; Online
ZDB-ID	419718-5
ISSN	1532-2416 ; 0010-3624
ISSN (online)	1532-2416
ISSN	0010-3624
DOI	10.1080/00103624.2022.2139391
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Framework for health care quality and evidence-based practice in radiology departments: A regional study on radiographer's perceptions.

de Almeida, Rui Pedro Pereira / da Silva, Carlos Alberto / Gama, Zenewton André da Silva

Journal of medical imaging and radiation sciences

2022 Volume 53, Issue 4, Page(s) 648–658

Abstract: Introduction: The main goals of this study were to describe, in an integrated and multidimensional way, the conditions related to the quality of care in radiology departments from Algarve (Portugal), to assess the perspective of radiographers on the use ...

Abstract	Introduction: The main goals of this study were to describe, in an integrated and multidimensional way, the conditions related to the quality of care in radiology departments from Algarve (Portugal), to assess the perspective of radiographers on the use of scientific evidence in clinical practice and to validate a model that characterizes the conditions for continuous improvement. Methods: A cross sectional study was performed in four radiology departments from public and private healthcare facilities from Algarve region (Portugal). A paper-based survey was sent to all radiographers to assess the quality systems implemented in their radiology departments and their perspective on the use of scientific evidence in clinical practice. Results: In total, 62 radiographers (61.4%) completed the survey. The quality dimensions that obtained the highest degree of compliance were the existence of quality assurance and improvement activities (43.0%), existence of standards in clinical practice of radiographers (42.7%) and the existence of special provisions (37.6%). The quality dimension related to patient's involvement was the one with the lowest level of compliance. Moreover, from the radiographers perspective, positive responses were obtained related to evidence-based actions (83.0%), sources of evidence (76.0%) and the significance of research activities (74.0%). Conclusion: These findings suggest that a new framework based on four factors (Support for Information; Organizational Capability to Technical Quality of Care; Patient Involvement and Evidence-Based Radiology), should be considered in the establishment of strategic policies that better define the provision of diagnostic procedures and professional practices in radiology departments from Algarve region, based on quality improvement systems and better patient safety. Implications for practice: There is a need to include patients in the decision-making process, to involve radiographers in quality assurance and improvement activities and to implement quality monitoring mechanisms within radiology departments under study.
MeSH term(s)	Humans ; Cross-Sectional Studies ; Radiology Department, Hospital ; Quality of Health Care ; Radiology ; Evidence-Based Practice
Language	English
Publishing date	2022-09-30
Publishing country	United States
Document type	Journal Article
ZDB-ID	2426513-5
ISSN	1876-7982 ; 1939-8654
ISSN (online)	1876-7982
ISSN	1939-8654
DOI	10.1016/j.jmir.2022.09.006
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Article: Morphology and Morphometry of the Reproductive Tract of the Cotton Boll Weevil after Prolonged Feeding on Alternative Diets.

Carvalho, Thiele da Silva / Silva, Carlos Alberto Domingues da / Martins, Celso Feitosa / Silva, Laryssa Lemos da / Zanuncio, José Cola / Serrão, José Eduardo

Insects

2023 Volume 14, Issue 6

Abstract: Anthonomus ... ...

Abstract	Anthonomus grandis
Language	English
Publishing date	2023-06-20
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662247-6
ISSN	2075-4450
ISSN	2075-4450
DOI	10.3390/insects14060571
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