Advancements in Precision Fertilization Technologies and Controlled-Dispersion Fertilizersfor Sustainable Rice Cultivation

World hunger remains a persistent challenge, necessitating sustainable agricultural strategies to address food demands. Efficient fertilizer use in rice cultivation is identified as a key contributor to sustainable agricultural development. The study introduces precision side-depth fertilization application technology for direct-seeded rice, optimizing fertilization processes and enhancing efficiency. The research explores various side-depth fertilizer application devices, focusing on their ability to seamlessly combine precision and depth. The proposed intermittent fixed-point precision method and device aim to meet side-depth fertilization requirements, addressing these challenges. In the context of increasing demand for food production, driven by population growth, the paper discusses the limitations of conventional fertilizers. Excessive use of chemical fertilizers results in challenges such as high production costs, resource depletion, and environmental pollution. To break this cycle, the study emphasizesdeep fertilization technology, strategically applying fertilizers at specific depths during crop growth.