Environment Friendly Polymeric Nano/Microgels in Agriculture: Sustainability Weds Functionality

The excessive utilization of agrochemicals in modern agriculture has led to poor nutrient use efficiency, environmental contamination, and soil quality deterioration. Addressing these challenges requires innovative solutions for sustainable crop management. In this regard, polymeric nano/microgels have emerged as a versatile alternative, because of their ability to perform multiple actions together. Recent advancements in nano/microgels have resulted in high loading capacity, stimuli-responsive release, strong foliar adhesion, and reduced leaching and runoff. These features enable the efficient and prolonged delivery of agrochemicals. Additionally, nanogels and microgels can improve soil water retention and mitigate acidity in arid and degraded soils. Herein, we provide an overview of key aspects to consider in the design of these carriers. Furthermore, we discuss the use of nano/microgels for the prolonged release of agrochemicals and soil conditioning. Finally, we summarize the existing challenges and opportunities to advance these nanogels and microgels from laboratory-scale research to practical, field-ready solutions for sustainable agriculture.