Class
Article
College
College of Agriculture and Applied Sciences
Department
English Department
Faculty Mentor
Astrid Jacobson
Presentation Type
Poster Presentation
Abstract
Iron (Fe) plays a vital role in plant growth as an essential micronutrient. However, Fe deficiency is common in plants cultivated in calcareous soils due to the formation of insoluble Fe oxides at high pH. Phosphorus deficiency (P) is also common in calcareous soils due to precipitation with calcium and or sorption to mineral surfaces. Metavivianite (metaVT) is a hydrated iron phosphate mineral containing both ferrous and ferric iron (Fe3-x2+Fex3+(PO4)2(OH)x∙(8-x)H2O). Chitosan (CTS), the N-deacetylated derivative of chitin, has antifungal and antibacterial properties in various applications, and it has been reported that chitosan improves plants’ defenses against a wide range of soil and foliar pathogens. Furthermore, the chitosan coating can be served as a protective biopolymer layer due to its low solubility in alkaline conditions. Therefore, we synthesize the chitosan-coated metaVT (CT-metaVT) and investigate the impact of chitosan coating on the solubility of metaVT. The kinetic releasing profiles of iron and phosphate from CT-metaVT were carried out with dilute electrolyte solution and soil saturated paste extract. The findings in this study would provide a new understanding of the effect of CT-metaVT on slow-released iron and phosphate and the potential to improve the iron and phosphate bioavailability under calcareous conditions.
Location
Logan, UT
Start Date
4-9-2022 12:00 AM
Included in
Novel Nano-Sized, Chitosan-Coated, Meta-Vivianite and its Solubility in an Electrolyte Solution and a Soil Saturated Paste Extract
Logan, UT
Iron (Fe) plays a vital role in plant growth as an essential micronutrient. However, Fe deficiency is common in plants cultivated in calcareous soils due to the formation of insoluble Fe oxides at high pH. Phosphorus deficiency (P) is also common in calcareous soils due to precipitation with calcium and or sorption to mineral surfaces. Metavivianite (metaVT) is a hydrated iron phosphate mineral containing both ferrous and ferric iron (Fe3-x2+Fex3+(PO4)2(OH)x∙(8-x)H2O). Chitosan (CTS), the N-deacetylated derivative of chitin, has antifungal and antibacterial properties in various applications, and it has been reported that chitosan improves plants’ defenses against a wide range of soil and foliar pathogens. Furthermore, the chitosan coating can be served as a protective biopolymer layer due to its low solubility in alkaline conditions. Therefore, we synthesize the chitosan-coated metaVT (CT-metaVT) and investigate the impact of chitosan coating on the solubility of metaVT. The kinetic releasing profiles of iron and phosphate from CT-metaVT were carried out with dilute electrolyte solution and soil saturated paste extract. The findings in this study would provide a new understanding of the effect of CT-metaVT on slow-released iron and phosphate and the potential to improve the iron and phosphate bioavailability under calcareous conditions.