Modern agricultural engineering technologies and applications are directly linked with the 2030 United Nations Sustainable Development Goals (UN-SDGs). Technological advancement is essential to next-generation agriculture in order to ensure food security, poverty alleviation, and sustainability. Worldwide, it is directly associated with farm mechanization; automation and robotics; intelligent agriculture; irrigation systems; indoor farming and agriculture 4.0; precision/conservation agriculture; farm energy systems; post-harvest storage/processing and value addition; tillage and cultivation; food science and processing; spraying and harvesting machinery; animals and poultry farming; clean energy; societal aspects in agriculture; and the associated bio-/soil environment. Consequently, this reprint aims to explore the interdisciplinary nature of research on such agricultural engineering sciences, technologies, and applications from the viewpoint of the agricultural water-energy-food security nexus. Carbon-neutral development and clean-energy utilization are also associated with the UN-SDGs. Thus, it is important to develop energy-efficient and environmentally friendly solutions to ensure the agriculture sector achieves the UN SDGs. Consequently, this reprint brings together a wide range of emerging concepts on the agricultural engineering technologies and applications by which sustainable agriculture and associated UN SDGs can be ensured