Silver nanoparticles are exceptionally prominent with unique features, making them suitable for various applications. The beneficial effects of silver nanoparticles have been revealed in many areas of the economy, including agriculture. Silver nanoparticles have garnered significant scientific interest in agriculture and plant biotechnology due to their high effectiveness in recent years. It not only boosts the process of seed germination and plant development but even promotes the quantum efficiency of the photosynthetic function. Silver nanoparticles are essential in agriculture because they guarantee food security and enhance agricultural output. Furthermore, they function as nano-pesticides, delivering an adequate dosage to the desired plants while minimizing the release of excessive pesticides into the surrounding environment. Nano-fertilizers gradually provide nutrients to the plants, therefore controlling extreme nutrient depletion. The potential uses of silver nanoparticles in farming and horticulture production are substantial. There is a possibility of achieving higher output levels while using fewer resources. However, there is presently an absence of knowledge on the possible hazards to the health of plants and soil fauna. Current investigations have revealed that employing nanoparticles affects plant development and soil fauna, as seen in their interaction. Before the widespread use or commercialization of nanoparticle-based agrochemicals, it is crucial to carefully evaluate the potential negative impacts on plant development and soil ecology. This chapter thoroughly examines and summarises contemporary research on the beneficial and adverse effects of Ag-NPs on plant development and their uses in agriculture.