Abstract

Stoichiometric homeostasis in plants and mechanisms for resisting biotic and abiotic stresses are very active research areas. This book chapter delves into the multifaceted role of silicon, exploring how it promotes sustainability in plant production by improving C:N:P stoichiometry and nutrient use efficiency by plants under many stress conditions. It examines the interplay between silicon and the homeostasis of carbon (C), nitrogen (N), and phosphorus (P) in plants. It underscores the importance of maintaining plant C:N:P homeostasis in mitigating stress induced by climate change, emphasizing silicon’s potential in bolstering plant resilience amid changing environmental conditions. Furthermore, it examines how maintaining the balance of plant C:N:P homeostasis alleviates stress caused by nutritional imbalances or toxicities, emphasizing the importance of balanced nutrient levels for optimal plant health and productivity. Lastly, the chapter outlines future perspectives and research avenues, underscoring the ongoing necessity to investigate the complex mechanisms that govern nutrient homeostasis and their implications for sustainable agriculture amid changing climatic conditions.