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Alexandre Igor De Azevedo Pereira - One of the best experts on this subject based on the ideXlab platform.
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Potassium Silicate, Against Water Stress, in Sweet Corn Plant Growth Traits
Journal of Agricultural Science, 2019Co-Authors: Ausbie Luis Graça Araújo, João De Jesus Guimarães, Amanda Maria De Almeida, Fernando Soares De Cantuário, Leandro Caixeta Salomão, Carmen Rosa Da Silva Curvêlo, Aurélio Rúbio Cantuário, José Magno Queiroz Luz, Alexandre Igor De Azevedo PereiraAbstract:Water stress in sweet corn plants due effect of climatic events, such as El Nino, is difficult to monitor, leading to considerable losses. Silicon (Si) as an exogenous resistance elicitor may reduce water stress effects. The relationship between sweet corn plant age and its development, under induced water stress and leaf Potassium Silicate applications were evaluated. This work was carried out with the hybrid Tropical Plus®, in a randomized factorial block design with 15, 30, 45 and 60 kPa as soil water tensions in plots and Potassium Silicate doses (0, 6, 12 and 24 L ha-1) in subplots. Stem diameter, plant height and leaf number per plant were evaluated at 30, 45, 60, 75 and 90 days after seeding. Root length was measured on the 90th day after seeding. Sweet corn plants submitted to water stress conditions and Si application showed an age-dependent response. Water stress did not decrease stem diameter, plant height and number of leaves per plant sprayed with Si. Root length was longer with 60 kPa soil water tension. Silicon reduced negative impacts of water stress on sweet corn plants.
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Potassium Silicate as a resistance elicitor in sweet corn yield traits under water stress
Revista Colombiana de Ciencias Hortícolas, 2019Co-Authors: Ausbie Luis Graça Araújo, João De Jesus Guimarães, Amanda Maria De Almeida, Fernando Soares De Cantuário, Leandro Caixeta Salomão, José Magno Queiroz Luz, Aurélio Rubio Neto, Alexandre Igor De Azevedo PereiraAbstract:Plant water stress is a major problem in the Cerrado biome of Brazil. Dry periods and random climatic events cause quality and yield losses in sweet corn plants. Compounds, such as silicon (Si), are being studied to reduce the negative impacts of water stress on agricultural crops. Further tests may allow farmers to increase the use of silicon-based compounds. The objective of this study was to evaluate the production parameters of the sweet corn (Zea mays var. saccharata) (Poaceae) Tropical Plus® hybrid with water stress and Potassium Silicate doses applied with foliar spraying. A randomized block design with four soil water tensions (15, 30, 45 and 60 kPa) and four Potassium Silicate doses (0, 6, 12 and 24 L ha-1) was used in a greenhouse. The studied factors, alone or in interaction with each other, did not affect most of the sweet corn yield parameters. The hypothesis that these results may have been partially affected by the presence of silicon are discussed. The sweet corn plant yield was affected mainly by the soil water tension of 60 kPa.
Davood Zaarei - One of the best experts on this subject based on the ideXlab platform.
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Effects of Potassium Silicate on corrosion behavior of dacromet coating
Anti-Corrosion Methods and Materials, 2019Co-Authors: Khashayar Tabi, Mansour Farzam, Davood ZaareiAbstract:Potassium Silicate sealer was applied on solvent-cleaned, acid-pickled, dacromet-coated steel to improve its corrosion resistance. The purpose of this paper is to study the corrosion behavior of dacromet-coated steel.,Potassium Silicate sealer was applied on solvent-cleaned, acid-pickled, dacromet-coated steel to improve its corrosion resistance. Electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and salt spray were carried out. SEM was used to study the morphological appearance of the surface.,The EIS behavior indicated that solvent-cleaned dacromet-coated steel sealed with Potassium Silicate showed that the corrosion current density was 2.664E − 5 A.cm2 which was reduced to 8.752E − 6 A.cm2 and the corrosion rate, which was 2.264E − 2 mm.year−1, was reduced to 7.438E − 3 mm.year−1 in NaCl 3.5 wt.per cent. EIS was used in NaCl 3.5 wt.%, and the Bode plot characteristics showed that the corrosion protection of solvent-cleaned, dacromet-coated steel was enhanced when sealed with Potassium Silicate. The EDS results of salt-sprayed, solvent-cleaned samples after 10 days indicated that the main corrosion products are composed of SiO2, ZnO and Al2O3.,The detection of Li element in EDS was not possible because of the device limitation.,The current paper provides new information about the sealing properties of Potassium Silicate and its effects on the corrosion resistance of dacromet coating, which is widely used in many industries such as the automobile industry.
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Effect of Silica Ratio on the Corrosion Behavior of Nano-silica Potassium Silicate Coatings on Aluminum Alloy 2024
Journal of Materials Engineering and Performance, 2014Co-Authors: H. Bahri, Iman Danaee, Gholamreza Rashed, Davood ZaareiAbstract:Nano-silica modified Potassium Silicate conversion coating was deposited in different nano-silica/Potassium Silicate ratios on the surface of 2024 aluminum alloy. The corrosion behavior of coatings was studied by electrochemical impedance spectroscopy, current transient, potentiodynamic polarization, and surface techniques. The ratio of nano-silica/Potassium Silicate was optimized in order to obtain higher corrosion protection. The experimental results indicated that with increasing nano-silica/Potassium Silicate ratio, the corrosion resistance of aluminum increases. Furthermore, the pitting corrosion probability of Potassium Silicate conversion coating decreased with increasing silica ratio. This can be related to the size of nano-silica particles and the ability to fill the pores in Potassium Silicate coating and reinforce the created siloxane bridges.
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eco friendly acrylic resin modified Potassium Silicate as water based vehicle for anticorrosive zinc rich primers
Journal of Applied Polymer Science, 2014Co-Authors: Iman Mirzaie Goodarzi, Mansour Farzam, Mohammad Shishesaz, Davood ZaareiAbstract:Potassium Silicate binder of zinc rich coating was modified by adding water based acrylic resin. Several series of coatings containing 5, 10 and 15 wt% of acrylic and acrylic/styrene binders were added to Potassium Silicate. The coatings were applied on steel and the corrosion resistance of coatings was evaluated by conventional methods such as electrochemical impedance spectroscopy, corrosion potential, salt spray and scanning electron microscopy. The results indicated that the modification of Silicate binder with acrylic and acrylic/styrene led to shortening the curing time, improved corrosion protection, better dispersion of zinc particles and enhanced salt spray resistance of resultant coatings.
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Eco‐friendly, acrylic resin‐modified Potassium Silicate as water‐based vehicle for anticorrosive zinc‐rich primers
Journal of Applied Polymer Science, 2014Co-Authors: Iman Mirzaie Goodarzi, Mansour Farzam, Mohammad Shishesaz, Davood ZaareiAbstract:Potassium Silicate binder of zinc rich coating was modified by adding water based acrylic resin. Several series of coatings containing 5, 10 and 15 wt% of acrylic and acrylic/styrene binders were added to Potassium Silicate. The coatings were applied on steel and the corrosion resistance of coatings was evaluated by conventional methods such as electrochemical impedance spectroscopy, corrosion potential, salt spray and scanning electron microscopy. The results indicated that the modification of Silicate binder with acrylic and acrylic/styrene led to shortening the curing time, improved corrosion protection, better dispersion of zinc particles and enhanced salt spray resistance of resultant coatings.
Mingzhu Liu - One of the best experts on this subject based on the ideXlab platform.
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slow release Potassium Silicate fertilizer with the function of superabsorbent and water retention
Industrial & Engineering Chemistry Research, 2007Co-Authors: Mingzhu LiuAbstract:To improve the utilization of fertilizer and water resource at the same time, a new slow-release Potassium Silicate fertilizer with the function of superabsorbent and water retention (SRPS) was pre...
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Slow-Release Potassium Silicate Fertilizer with the Function of Superabsorbent and Water Retention
Industrial & Engineering Chemistry Research, 2007Co-Authors: Mingzhu LiuAbstract:To improve the utilization of fertilizer and water resource at the same time, a new slow-release Potassium Silicate fertilizer with the function of superabsorbent and water retention (SRPS) was prepared, which possessed the core/shell structure. Its core was Potassium Silicate in an alginate matrix, and the shell was poly(acrylic acid-co-acrylamide)/kaolin (P(AA-co-AM)/kaolin) superabsorbent polymer. The product contained 26.6% K2O and 10.4% SiO2. The effects of the amount of acrylamide, crosslinking agent, initiator, degree of neutralization of acrylic acid (AA), and kaolin concentration on water absorbency were investigated and optimized. The water absorbency of the product was 85 times its own weight if it was allowed to swell in tap water at room temperature for 90 min. Release characteristics of Potassium and silicon from SRPS in soil and water-retention capacity of the soil with SRPS were also investigated. A non-Fickian diffusion mechanism of nutrient release was proposed, and the release rate fact...
Ausbie Luis Graça Araújo - One of the best experts on this subject based on the ideXlab platform.
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Potassium Silicate, Against Water Stress, in Sweet Corn Plant Growth Traits
Journal of Agricultural Science, 2019Co-Authors: Ausbie Luis Graça Araújo, João De Jesus Guimarães, Amanda Maria De Almeida, Fernando Soares De Cantuário, Leandro Caixeta Salomão, Carmen Rosa Da Silva Curvêlo, Aurélio Rúbio Cantuário, José Magno Queiroz Luz, Alexandre Igor De Azevedo PereiraAbstract:Water stress in sweet corn plants due effect of climatic events, such as El Nino, is difficult to monitor, leading to considerable losses. Silicon (Si) as an exogenous resistance elicitor may reduce water stress effects. The relationship between sweet corn plant age and its development, under induced water stress and leaf Potassium Silicate applications were evaluated. This work was carried out with the hybrid Tropical Plus®, in a randomized factorial block design with 15, 30, 45 and 60 kPa as soil water tensions in plots and Potassium Silicate doses (0, 6, 12 and 24 L ha-1) in subplots. Stem diameter, plant height and leaf number per plant were evaluated at 30, 45, 60, 75 and 90 days after seeding. Root length was measured on the 90th day after seeding. Sweet corn plants submitted to water stress conditions and Si application showed an age-dependent response. Water stress did not decrease stem diameter, plant height and number of leaves per plant sprayed with Si. Root length was longer with 60 kPa soil water tension. Silicon reduced negative impacts of water stress on sweet corn plants.
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Potassium Silicate as a resistance elicitor in sweet corn yield traits under water stress
Revista Colombiana de Ciencias Hortícolas, 2019Co-Authors: Ausbie Luis Graça Araújo, João De Jesus Guimarães, Amanda Maria De Almeida, Fernando Soares De Cantuário, Leandro Caixeta Salomão, José Magno Queiroz Luz, Aurélio Rubio Neto, Alexandre Igor De Azevedo PereiraAbstract:Plant water stress is a major problem in the Cerrado biome of Brazil. Dry periods and random climatic events cause quality and yield losses in sweet corn plants. Compounds, such as silicon (Si), are being studied to reduce the negative impacts of water stress on agricultural crops. Further tests may allow farmers to increase the use of silicon-based compounds. The objective of this study was to evaluate the production parameters of the sweet corn (Zea mays var. saccharata) (Poaceae) Tropical Plus® hybrid with water stress and Potassium Silicate doses applied with foliar spraying. A randomized block design with four soil water tensions (15, 30, 45 and 60 kPa) and four Potassium Silicate doses (0, 6, 12 and 24 L ha-1) was used in a greenhouse. The studied factors, alone or in interaction with each other, did not affect most of the sweet corn yield parameters. The hypothesis that these results may have been partially affected by the presence of silicon are discussed. The sweet corn plant yield was affected mainly by the soil water tension of 60 kPa.
João De Jesus Guimarães - One of the best experts on this subject based on the ideXlab platform.
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Potassium Silicate, Against Water Stress, in Sweet Corn Plant Growth Traits
Journal of Agricultural Science, 2019Co-Authors: Ausbie Luis Graça Araújo, João De Jesus Guimarães, Amanda Maria De Almeida, Fernando Soares De Cantuário, Leandro Caixeta Salomão, Carmen Rosa Da Silva Curvêlo, Aurélio Rúbio Cantuário, José Magno Queiroz Luz, Alexandre Igor De Azevedo PereiraAbstract:Water stress in sweet corn plants due effect of climatic events, such as El Nino, is difficult to monitor, leading to considerable losses. Silicon (Si) as an exogenous resistance elicitor may reduce water stress effects. The relationship between sweet corn plant age and its development, under induced water stress and leaf Potassium Silicate applications were evaluated. This work was carried out with the hybrid Tropical Plus®, in a randomized factorial block design with 15, 30, 45 and 60 kPa as soil water tensions in plots and Potassium Silicate doses (0, 6, 12 and 24 L ha-1) in subplots. Stem diameter, plant height and leaf number per plant were evaluated at 30, 45, 60, 75 and 90 days after seeding. Root length was measured on the 90th day after seeding. Sweet corn plants submitted to water stress conditions and Si application showed an age-dependent response. Water stress did not decrease stem diameter, plant height and number of leaves per plant sprayed with Si. Root length was longer with 60 kPa soil water tension. Silicon reduced negative impacts of water stress on sweet corn plants.
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Growth of sweet pepper plants submitted to water tensions in soil and Potassium Silicate doses
2019Co-Authors: Alexandre Igor A Pereira, João De Jesus Guimarães, João Victor Costa, Fernando S De Cantuário, Leandro C Salomão, Roberta C De Oliveira, José Magno Q LuzAbstract:ABSTRACT Water stress compromises plant growth. Resistance inducers, such as Potassium Silicate (K2SiO3), can reduce negative effects of this stress on Solanaceae, Capsicum annuum. Plant height, stem diameter and leaf area may indicate the efficiency of Potassium Silicate foliarsprayagainst water stress. The aim of this study was to evaluate the growth of sweet pepper plants under water stress and K2SiO3 doses. The experiment was conducted in randomized blocks in a split-plot scheme in space. The treatments consisted of four soil water stresses: 15 kPa (field capacity), 25 (intermediate value), 35 and 45 kPa (water stress) and three doses of Potassium Silicate (0, 0.4 and 0.8 L 100 L-1 water), acting as resistance inducers to water stress. The resistance inducer maintained greater heights of the sweet pepper plants, under water stress (35 and 45 kPa) at the initial stage [(20 days after transplanting (DAT)]. Smaller plant diameters were observed at 80 and 100 DAT at 35 and 45 kPa. Sprays using K2SiO3 maintained sweet pepper leaf area with higher values, even under stress condition. The soil water tension from 35 kPa limited, in general, the plant growth. Growth responses in Capsicum annuum to K2SiO3, via foliar spraying, varied according to plant age, as well as the growth parameter considered in this experiment.
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Potassium Silicate as a resistance elicitor in sweet corn yield traits under water stress
Revista Colombiana de Ciencias Hortícolas, 2019Co-Authors: Ausbie Luis Graça Araújo, João De Jesus Guimarães, Amanda Maria De Almeida, Fernando Soares De Cantuário, Leandro Caixeta Salomão, José Magno Queiroz Luz, Aurélio Rubio Neto, Alexandre Igor De Azevedo PereiraAbstract:Plant water stress is a major problem in the Cerrado biome of Brazil. Dry periods and random climatic events cause quality and yield losses in sweet corn plants. Compounds, such as silicon (Si), are being studied to reduce the negative impacts of water stress on agricultural crops. Further tests may allow farmers to increase the use of silicon-based compounds. The objective of this study was to evaluate the production parameters of the sweet corn (Zea mays var. saccharata) (Poaceae) Tropical Plus® hybrid with water stress and Potassium Silicate doses applied with foliar spraying. A randomized block design with four soil water tensions (15, 30, 45 and 60 kPa) and four Potassium Silicate doses (0, 6, 12 and 24 L ha-1) was used in a greenhouse. The studied factors, alone or in interaction with each other, did not affect most of the sweet corn yield parameters. The hypothesis that these results may have been partially affected by the presence of silicon are discussed. The sweet corn plant yield was affected mainly by the soil water tension of 60 kPa.