On July 24th, Eixo InFrass organized a webinar as part of the New Bioindustry - The future has already begun series of sessions, on the topic of “Agronomic valorization of organic insect fertilizer”.
The Secretary General of the Agenda, António Campos, opened the session and presented the InsectERA Mobilizing Agenda, followed by Sandra Correia, representing InnovPlantProtect as the leader of this WP, who presented the objectives of this axis.
This was followed by Ivã Lopes, from the Swedish University of Agricultural Sciences, who spoke about “The Potential and Advantages of Using Organic Insect Fertilizer”, resulting from the research he is carrying out. This included evaluating the chitin of three insects (black soldier fly, crickets and mealworms).
He concluded his speech by outlining the prospects for using frass:
- Frass is an organic fertilizer with similar characteristics to conventional organic compounds... but there are differences!
- The concentration of biostimulants in frass seems to be higher than other organics, which results in superior growth and metabolic effects
- Frass contains a large amount of chitin, a natural stimulant of plant immunity
- Can we consider applying frass alone? Yes. However, combining it with other raw materials results in more significant effects
- We need to unravel the mechanisms behind how frass works! To do this: tests and more tests, with partnerships between industry and academia
- Frass stimulates microorganisms that affect communication between plants. How can this synergistic effect be optimized?
Clarice Sousa (EntoGreen), Marisa Santos (Thunder Foods) and José Gonçalves (The Cricket) addressed the topic “Innovative Production of Organic Fertilizers: Insect Companies Present Sustainable Solutions”, which focused on the technical aspects of producing black soldier fly, tenebrio and cricket (Acheta domesticus), including the physical and chemical composition of the frass.
Sara Campos, from INEGI, presented “Challenges and Solutions in Frass Processing: Efficiency and Regulation”, addressing the issue of experimental analyses of frass quality, with variations in time and temperature and the technologies/processes used by partners for heat treatment, recalling that the work underway is for the development and application of new methods for processing insect excrement (frass) that comply with European standards and increase the efficiency of the process in terms of time and energy, without jeopardizing the quality obtained.
Ana Rita Caranova, from the DGAV, spoke about the “Legal Framework for Farmed Insect Excrement, its Treatment and Use”. She began by presenting the DGAV, its Mission and Vision. He then outlined the Agenda, in particular the legal issues, such as technical clarifications, meetings with partners, clarifications and the preparation of material to support the interpretation of the legislation in force. He referred to the definition of frass, as well as the legal requirements for placing frass on the market, as FOCOS (Organic Fertilizer and Organic Soil amendment), supported by Regulation (EU) 142/2011, points a), b), d) and e) of section 2, Chapter I, Annex XI.
He finished by referring to labeling, transport and placing on the market, which are covered by specific regulations.
Regina Menino and António Cordeiro, from INIAV, developed “Frass as an Organic Fertilizer”. Regina Menino began the presentation by saying that frass is being used in various greenhouse and field trials, with the aim of assessing its agronomic potential (both in soils and in different crops). She also mentioned the trials in pots, which are being carried out using ryegrass as a model crop, and whose aim is the agronomic enhancement of frass from different origins.
António Cordeiro presented information on the work being carried out in the olive grove field trials - hedged and intensive, and in partnership with Nutrifarms. There are many expectations in terms of monitoring and analyzing the results.
Ricardo Ramiro and Leonor Martins, from InnovPlantProtect, presented “The Impact of Frass on Plant and Soil Health”. Trials are being carried out which include assessing the effect of different frass: on vegetables (physiological parameters and crop productivity), on corn (physiological parameters and growth assessment), and on the susceptibility of different crops to diseases, by carrying out controlled infection trials. The effect of different frass on the microbiome of different crops will also be tested.
The intervention culminated in a very important question: Frass: a new tool for manipulating the microbiome? Since frass is rich in organic matter, macro- and micronutrients, with chitin being a key component, the properties of frass vary according to several factors:
- insects' diet
- application of treatments (e.g. temperature)
- incorporation of other products
- ==> such versatility could allow for customized applications
The application of frass to the soil leads to an increase in the abundance of organisms capable of degrading chitin (e.g. Actinobacteria; Bacillus; Mortierellomycetes), with multiple benefits for the plant.
Diogo Cardoso, from the University of Aveiro, closed the presentations with the topic “Analysis of Soil Functionality and Ecosystem Services with the Use of Insect Frass: Sustainability and Impact Assessment”. He began by highlighting the problem of food sustainability for the global population and the need to adopt more sustainable agricultural practices. This is where organic fertilizer (Insect frass) can come in, boosting enzymatic activity, benefiting soil health, making it biologically active, with high microbial activity and good nutrient recycling. It is in this context that laboratory work is being carried out to assess the impact of frass on soil and plants, and on soil leaching. Tests are also being carried out in greenhouses and in the field.
Source: Insectera
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