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4th Commonwealth Chemistry Posters
October 4 - 5, 2023 | Online, United Kingdom
P239
Developing a Innovative Slow-Release Fertilizer: Zinc Oxide/Gum Acacia Nanocomposite for Improved Zinc Uptake and Growth of Spinacia oleracea L
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Zero hunger
Developing an Innovative Slow-Release Fertilizer: Zinc Oxide/Gum Acacia Nanocomposite for Improved Zinc Uptake and Growth of Spinacia oleracea L
Avimanu Sharma and Ritu Singh
Department of Environmental Science, School of Earth Sciences, Central University of Rajasthan,
Bandarsindri, Ajmer 305801, Rajasthan (India)
Email: imabhimanyu146@gmail.com
Introduction
Zinc deficiency has been recognized as a "hidden hunger" causing nutritional disorders in 17% of the world’s population.
Nearly half of the world's soil has reduced bioavailable Zn, and its deficiency is projected to increase from 42% to 63% by 2025.
Approximately 2 billion people worldwide are estimated to suffer from Zn deficiency, which can lead to reduced learning abilities, impaired immune response, malfunction of the reproductive system, and slower growth rates.
Zinc (Zn) is an essential micronutrient required for plants' optimal growth and metabolic functioning.
Characterization
The XRD pattern of ZnO-GA shows sharp crystalline peaks.
The size was calculated to be 7.5 nm.
The intense band observed at 3408 cm−1 is attributed to the O-H group present in the GA.
The absorption band at 758 and 546 cm -1 corresponds to ZnO.
The surface coating of ZnO is rough, and disorganized. The Gum acacia coating serves as a physical barrier that could limit the rate of water diffusion, matrix dissolution, and zinc release.
Conclusion
The slow rate of Zn release indicates that ZnOGA could effectively improve the soil conditions and its fertility.
The efficacy of ZnOGA was compared with commercial Zinc fertilizer at different doses and 3 mg/Kg of ZnOGA showed the best results.
§The results revealed that ZnO as a nano-fertilizer enhanced the growth and yield of spinach and has the potential to be employed as a nano-fertilizer for crops cultivated in Zn-deficient soils to boost the quantitative and qualitative value of the crop.
The findings of this study are more pertinent in the Indian context, where more than half of the agricultural soils are Zn deficient, and soil application of Zn fertilizers is recommended.