Microorganisms used to enhance crop growth and reduce chemical use

Researchers are utilizing soil microorganisms, including bacteria and fungi, to improve agricultural sustainability and reduce dependence on chemical inputs. In Chile, a project in the Arica y Parinacota Region is focusing on the development of high-quality alfalfa seed production systems. This initiative incorporates beneficial microorganisms adapted to local conditions to assist with nutrient availability, root development, and nitrogen fixation, particularly in arid and saline environments.

In Argentina, a research team from the National University of La Plata and CONICET is developing multi-species bio-inputs using native bacteria from horticultural belts. Testing on lettuce and tomato crops has demonstrated that these microbial preparations can promote plant growth and provide biological control against pathogens. In lettuce trials, certain bio-inputs increased root biomass by 43% and aerial biomass by 69%, offering a potential alternative to chemical fungicides during the seedling production stage.