###### Abstract  
Soil microorganisms play an important role on plant development and the homogenization of soil microbiomes is harmful to agri-environments. It is essential that agricultural practices are carried out by taking soil microbiome preservation in consideration. Agroforestry systems are one of the most environmentally friendly agrosystems and its plant diversity directly influences the soil microbiome diversity. In this study, we tested the efficacy of the microbial consortium (MC) obtained from compost and the cyanobacteria _Arthospira platensis_ (Ap) compared with the application of the vermicompost tea (VT) and bokashi (Bk) in arugula, lettuce, beetroot, and carrot in two seasons in a recently implemented agroforestry system. We aimed to verify if MC and Ap could be new promising sustainable alternatives in vegetables production. The strategy can be broken down into three stages: (1) Green manure management planting, cutting, griding, and incorporation in the soil, (2) agroforestry system implementation, and (3) treatment application in a completely randomized blocks design. The vegetables yield was measured. Nutritional traits and the plant root system were evaluated for arugula and lettuce. Greater plant yield, nutritional values, and plant root development were observed in the MC-treated plants; Ap and Bk had, in general, similar results. Our data show that both MC and Ap have potential to become a sustainable product for agricultural production. microbial consortium; inoculant; cyanobacteria 202420  
residues from annual crops improves the supply of nutrients and, in addition to the root exudates, favours the action of beneficial microorganisms in the soil [6; 7]. Several microorganisms can interact with roots and promote plant growth [8; 9]. These microorganisms have been studied for decades and biotechnological products have been developed using plant growth promoting microorganisms (PGPM) in agriculture as inoculants. This biotechnology is very important to Brazilian agriculture [10]. In maize, for example, it is possible to replace 25% of N chemical fertilizers by inoculation with _Azospirillum brasilense_ in the country, saving USD 15 ha\({}^{-1}\) and avoiding the emission of 236 kg of CO\({}_{\text{2e}}\) ha\({}^{-1}\)[11]. In soybeans, the replacement is 100% using _Bradynhizobium_ spp. [12]. There is research on inoculation in horticulture, but not so extensive as far as it pertains to crops [12]. [PERSON] et al. (2021) [13] isolated a microbial consortium from compost and inoculated it in arguula, carrots, and radiishes, obtaining great results on these three cultures. This microbial consortium differs from the conventional inoculants since it is inoculated in a microbial community and not an isolated strain; it has potential to become a commercial inoculant, but more tests should be done. Another type of PGPM tested in horticulture is cyanobacteria due to their ability to fix atmospheric nitrogen, solubilise phosphorus, and promote plant growth [14; 15]. Also, they have potential to be applied as soil conditioners since they can improve soil structure and water retention [16] as well as the availability of nutrients [17; 18]. In horticulture, it is common to use organic fertilizers to improve productivity in a sustainable way. Vermicompost tea (worm tea) is a leachate obtained below the vermicomposting heap that has been used as organic fertilizer [19; 20]. Bokashi is an organic fertilizer with a high content of organic matter and nutrients, a high porosity, and a high water retention capacity [21]. In addition, it contributes to soil fertility with different types of microorganisms such as fungi and bacteria, increasing life in the soil [22; 23]. We tested the efficacy of the microbial consortium presented by [PERSON] et al. (2021) [13] and the cyanobacteria _Arthrospira platensis_ compared with the application of the vermicompost tea and bokashi in arguula, lettuce, beetroot, and carrot in an agroforestry system implemented in an area that was used as a construction debris deposit.