EFFECTS OF BIO-ORGANIC FERTILIZER ON YIELD AND QUALITY OF FLUE-CURED TOBACCO AND SOIL MICROECOLOGY

This study aims to promote the development and application of organic fertilizer, improve soil quality, enhance the yield of flue-cured tobacco, provide a scientific basis for large-scale organic fertilizer production and application, and support the growth of the tobacco industry.The field randomized block design experiment included no-fertilizer and conventional fertilizer controls, as well as various bioorganic fertilizer treatments.The study analyzed soil quality indices, flue-cured tobacco growth, disease incidence, leaf quality, and economic traits under different treatments to evaluate the functional restoration effect of bio-organic fertilizer on tobacco-planting soil.The application of organic fertilizer can improve soil nutrients, promote the growth of flue-cured tobacco and improve soil microbial structure.Comprehensive analysis showed that organic fertilizer could improve the indexes of tobacco leaves and soil, and the soil function was restored.Among the tested treatments, formula product 1 of the functional bio-organic fertilizer demonstrated the most significant effects.