Role and Application Strategies of Biocontrol Bacteria in Sustainable Agricultural Development

In the contemporary context of global agriculture, confronted with numerous challenges including ecological degradation, chemical pesticide misuse and food safety concerns, biocontrol bacteria are garnering increased attention as a green and sustainable approach to disease prevention and control. This paper systematically explores the mechanisms by which biocontrol bacteria promote healthy crop growth, inhibit pathogenic microorganisms, improve soil ecosystems and reduce chemical inputs, from the perspective of sustainable agricultural development. The paper synthesises current research and industrial development at home and abroad, highlighting the application of biocontrol bacteria, including Bacillus spp., Pseudomonas spp. and Streptomyces spp., in disease control of rice, wheat, tomato and other crops. The paper demonstrates the potential of biocontrol bacteria in driving the green transformation of agriculture. A thorough analysis was conducted on the key issues, including the unstable field application effect, the weak adaptability of strains, the outdated formulation process, and the inadequate market and policy support. Based on these findings, targeted application strategies were proposed from the dimensions of strain selection and breeding, formulation optimization, technology integration, and policy guidance. Finally, the trend of the deep integration of biocontrol bacteria with the frontiers of histotechnology, smart agriculture, and agricultural carbon neutrality is anticipated. The paper's objective is twofold: firstly, to provide a theoretical foundation and technical reference framework for in-depth research and practical application of biocontrol bacteria in the sustainable development of agriculture; and secondly, to offer a comprehensive review of the current state of research and practical application of biocontrol bacteria in the sustainable development of agriculture.