| Is Part of |
Open readings 2023: 66th international conference for students of physics and natural sciences, April 18-21, 2023, Vilnius, Lithuania: annual abstract book / editors: M. Keršys, Š. Mickus.. Vilnius : Vilnius University press, 2023. p. 123.. ISBN 9786090708835 |
| Abstract [eng] |
Humanity cannot abandon economic activity, but the aim is to contribute to its lower negative impact on the environment. The current direction of development is the green course, and its main goal is to create a sustainable, modern economy without harming the environment. In order to avoid the negative effects of intensive farming, various options for sustainable agriculture are often offered, such as partially replacing synthetic fertilizers, replacing chemical plant protection measures with biological ones. Due to the growing world population, the agricultural industry is challenged to produce the required amount of food. This is not possible without the use of fertilizers [1]. The use of chemical fertilizers is one of the most common ways of developing intensive agriculture nowadays [2, 3]. However, the continuous long-term use of chemical fertilizers causes negative effects on the environment, such as soil degradation, pollution of bodies of water. In the fertilizer market, new products, which focus on the processes occurring naturally in the plant and the circular economy, are now appearing next to traditional fertilizers more frequently. Residues from other agricultural branches can be used as an alternative raw material to produce fertilizers. The current trends in insect breeding, which are gaining wider applicability and legalization for use in the food industry, also create prerequisites for the development of possibilities for processing waste products [4]. Under laboratory conditions, studies of frass were carried out (Fig. 1) by the company UAB "Divaks", concerning the suitability for fertilizer production, the chemical composition of frass and the composition of their extracts. Nitrogen, phosphorus and potassium content and properties of samples were determined by using standard techniques [5]. [...]. |
