Szczegóły publikacji
Opis bibliograficzny
Innovative silicate-phosphate glasses as controlled-release fertilizers / Magdalena SZUMERA, Anna BEREZICKA, Sebastian PREWENDOWSKI // W: WCAM-2025 ; Nano S&T-2025 [Dokument elektroniczny] : 11th Annual World Congress of Advanced Materials ; 14th World Congress of Nano Science & Technology : [12–14 May 2025], Kobe, Japan. — Wersja do Windows. — Dane tekstowe. — [China : BIT Congress], [2025]. — S. [116–117]. — Wymagania systemowe: Adobe Reader. — Tryb dostępu: https://www.bitcongress.com/galatechbook3/uploads/2025-04-25/... [2025-05-19]. — Referat zamieszczony w części Nano S&T-2025
Autorzy (3)
Dane bibliometryczne
| ID BaDAP | 159929 |
|---|---|
| Data dodania do BaDAP | 2025-05-19 |
| Rok publikacji | 2025 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
Abstract
The basic assumption of contemporary agricultural policy is primarily the development of high-yield agriculture, which aims to produce a large quantity of crops from a given area of land. Optimization of the growth rate and size of crops is related to intensive mineral fertilization. Indeed, the share of phosphorus, silicon, nitrogen and fluorine in the soil environment is essential, and their role in the metabolism of plants, animals and humans is enormous. Nevertheless, the intensification of agricultural management through the use of large amounts of traditional mineral fertilizers results in a product considered unfavourable for health. As a result of the significant solubility of mineral fertilizers, the high concentration of principal components and microelements only sometimes occurs during the period of the most critical demand for these components by plants. At the same time, their excess causes unfavourable changes in the soil environment. The washed-out components disturb the biological balance in rivers and water reservoirs, disrupting the growth and development of the plant and animal world. Recognizing the limitations of traditional fertilizers, contemporary research has shifted towards a more plant-centric approach. This promising shift has led to the development of glassy mineral fertilizers, which offer a controlled release of nutrients and more effectively address plants' needs, paving the way for more sustainable and environmentally friendly agriculture. Phosphorus oxide is a compound with glass-forming solid properties, and phosphate glasses accept many substances into their composition, including significant amounts of metal oxides. Thanks to this, the main components, i.e. potassium, phosphorus, and microelements, can be introduced into the soil through glasses. The solubility of glasses in the soil environment can be regulated in a wide range by selecting their composition accordingly. Inorganic glasses introduced into the soil constitute a residue that is entirely harmless to the soil, providing a safe and sustainable solution for agricultural needs. These high-temperature glasses are versatile and can be given different forms according to specific needs, demonstrating their adaptability to various agricultural contexts. They are difficult to dissolve in water but completely dissolve in 2% citric acid, making them suitable as base glasses for ecological mineral fertilizers, further expanding their potential applications. Controlling the dissolution rate of glassy fertilizers depends on their chemical composition and grain size. However, the most significant advantage is the possibility of using them in relatively high concentrations. The subject of this work was to obtain agrotechnical glasses from the basic SiO2-P2O5-MgO-CaO-K2O system, with compositions modified by the content of selected bond-forming oxides and alkalis. Their effect on the solubility of individual macroelements in fertilizer glasses was examined. The scope of work also included studies of the surface of fertilizer glasses. This was done by exposing the glasses to water and citric acid, a process known as etching, to obtain information on the mechanism of leaching of individual components from their structure.
