Guar gum based hydrogel as controlled micronutrient delivery system: Mechanism and kinetics of boron release for agricultural applications
Autor: | Sumit Mishra, Nandkishore Thombare, Reshma Shinde, Usha Jha, M.Z. Siddiqui |
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Rok vydání: | 2021 |
Předmět: |
Absorption (pharmacology)
Kinetics Biophysics chemistry.chemical_element 010402 general chemistry 01 natural sciences Biochemistry Galactans Biomaterials Mannans chemistry.chemical_compound Soil Soil pH Plant Gums medicine Micronutrients Boron Guar gum 010405 organic chemistry Chemistry Organic Chemistry Water Agriculture Hydrogels General Medicine Phosphate Controlled release 0104 chemical sciences Swelling medicine.symptom Nuclear chemistry Half-Life |
Zdroj: | BiopolymersREFERENCES. 112(3) |
ISSN: | 1097-0282 |
Popis: | A boron loaded super-absorbent hydrogel (BLSAH) was developed through in situ incorporation of boron (B) in a guar gum-based hydrogel and characterized with FTIR, thermo-gravimetric analysis (TGA), scanning electron microscopy (SEM), and swelling studies, showing maximum absorption up to 356 g/g. The release pattern of B from the BLSAH and its kinetics was studied in water as well as soil. The B release pattern of the BLSAH was also compared with the commercial B fertilizer, boronated single super phosphate (bSSP). The BLSAH, following the Fickian mechanism, released 38% B, as compared with 51% of the bSSP, during the incubation period of 30 days in soil. The half-life period for the BLSAH (96.25 days) in soil was almost triple that of the bSSP's half-life (33.32 days), which is indicative of the slow and controlled release of B from the BLSAH. Thus, owing to its sustained nutrient release ability, the synthesized BLSAH exhibited wide potential for applications in agriculture sector. |
Databáze: | OpenAIRE |
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