Abstract:

Zinc (Zn) is an essential micronutrient required for plant growth and development, yet its deficiency in soil is a widespread agricultural problem. Conventional zinc fertilizers have limited efficiency due to low solubility and fixation in the soil. Zinc-solubilizing actinobacteria (ZSA) present an eco-friendly and sustainable alternative for enhancing zinc bioavailability in crops. This paper explores the mechanisms through which ZSA solubilize zinc, including organic acid production, chelation, and enzymatic activity. The benefits of utilizing ZSA as biofertilizers include improved plant nutrition, enhanced soil microbial diversity, and reduced dependence on synthetic fertilizers. Potential applications such as seed inoculation, soil amendments, and integration with other beneficial microbes are discussed. Despite their advantages, challenges such as strain variability, environmental adaptability, and large-scale formulation need to be addressed. Future research focusing on genetic improvements and field trials can facilitate the widespread adoption of ZSA-based biofertilizers. This conceptual framework highlights the significance of ZSA in promoting sustainable agriculture and food security.

Description:

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