RESEARCH ON THE INFLUENCE OF BIOLOGICAL TREATMENT WITH MIXED BACTERIAL PREPARATION APPLIED TO SEEDS, ON THE GROWTH AND DEVELOPMENT OF ORGANICALLY GROWN TOMATO PLANTS

Biological fertilization techniques are pertinent strategies for an efficient and rational use of agricultural resources with minimal generation of adverse environmental impacts that may affect water resources, ecosystems or the quality of human life. In addition, biological fertilizers provide a wide range of possibilities for the development of conservative agriculture (CA) in different geographic, economic, and cultural backgrounds. Treatments with mixed bacterial preparations or with Trichoderma spp., applied to seeds, can have a beneficial influence on the growth and development of organically grown vegetable species. In 2019, the VRDS Buzau, within the Complex Project PN-III-P1-1.2-PCCDI-2017-0301/Contract 28PCCDI/2018-SEDMAGRO", carried out research activity with 4 variants: Vl-control; V2-mixed bacterial preparation applied: A-for seeds; B-at planting, 2.5g granules at the base of the plant; V3-fungal preparation based on Trichodermasp. applied to the seed; V4-with seedlings obtained from bacterialized seeds (V2), and no treatment at the time of planting. The experiment was carried out in the ecological polygon, on an area of 350m2. The applied culture technology was unitary, also the treatments applied for the prevention and control of phytopathogens. The tomato variety used was BUZAU 1600 cultivar.