Efficient use of water is achieved under smart irrigation systems, which reduce runoff and water waste. Biotechnology improves yield endurance and reduces reliance on chemicals. These methods also include the use of automatic equipment and renewable energy sources to reduce greenhouse gas emissions and fuel dependency. This research focuses on the use of precision agriculture, smart irrigation, drones, and biotechnology in sustainable agriculture. These technologies contribute to the efficient use of resources, the conservation of natural resources, and the improvement of food system stability. This study revealed that Smart technologies improve yield efficiency in terms of water, fertilizer, and soil health while minimizing adverse effects on the environment. This study highlights the impact of smart irrigation systems, which reduce water consumption by 30%, and precision agriculture, which results in an 18% increase in crop yield per hectare, contributing to more sustainable farming practices. However, challenges such as high costs, complex processes, and the need for personnel training impede large-scale implementation. The need for policies, funding, and training programs to overcome these barriers is emphasized to ensure sustainability in farming. Thus, the technologies in agriculture discussed here provide possible solutions to feed the world today while ensuring future productivity and environmental health.