This proceedings volume from the International Conference on Innovations in Sustainable Agriculture 4.0 (26–27 March 2026, Stavropol, Russia) offers practical solutions to current farming challenges. Section on digital agricultural techniques presents wireless sensor networks, machine learning, and digital land management for precision crop production. Section on sustainable development addresses soil fertility, climate impacts on irrigated lands, plant health, and biologically active compounds for quality improvement. Section on economic, ecological and social systems explores sustainable consumer behaviour, labour demand, digital accounting, ESG integration, food availability, and rural human capital. Section on sustainability in animal husbandry covers veterinary therapies, precision feeding, and livestock breeding strategies. Designed for researchers, practitioners, policymakers, and students, the book provides a multidisciplinary roadmap toward resilient agri‑food systems in Agriculture 4.0.