Maize Genomics and Genetics 2025, Vol.16, No.5, 267-275 http://cropscipublisher.com/index.php/mgg 272 moisture to increase yields. Simulation studies have also found that this approach can reduce greenhouse gas emissions while maintaining production, which is beneficial to both the environment and the economy (Huo et al., 2024). 7 Concluding Remarks Irrigation regulation affects key stages of corn growth, especially water supply. This regulation helps corn absorb nutrients better and improves water use efficiency, which affects crop growth, yield and environmental impact. If irrigation is timed appropriately and managed properly, corn yields can be increased by more than 30% compared to non-irrigation, water use efficiency will be higher, and greenhouse gas emissions and nitrogen loss can be reduced. The coordination between irrigation and nitrogen application is also critical. If water and nitrogen management are synchronized, not only can yields be higher, but resource utilization efficiency can also be improved, while reducing pressure on the environment. The climate is becoming more and more unstable, so in order to ensure stable and high yields of corn, some intelligent and local irrigation methods must be adopted. Some irrigation systems are now controlled by IoT technology and real-time monitoring of soil moisture, which can save water by up to 35% and can also harvest earlier. But when using these systems, you should also be careful not to affect yields because of water saving. Different irrigation methods are suitable for different regions. For example, drought-scarce areas can adopt water-deficient irrigation; oasis areas can implement precision scheduling; and rain-fed areas that rely on the weather can cooperate with conservation tillage. These practices can make water and nutrient inputs more in line with local climate and soil conditions, and can also increase yields and resource utilization. In the face of future climate change and resource pressure, the following measures are very important. For example, promote precision irrigation technology in water-scarce areas to reduce waste; arrange irrigation plans reasonably during different growth stages of corn, such as seedling, jointing and flowering; in addition, combine moderate water-deficient irrigation with reasonable fertilization, which can also take into account high yield and environmental protection. It is also necessary to continue to study which irrigation thresholds are most suitable under different climatic conditions and how to manage them according to local conditions. Only in this way can the yield gap between different regions be narrowed, and the function of agricultural ecosystems can be enhanced. Promoting irrigation and soil management methods that are more in line with climate characteristics and regional conditions will help ensure the long-term sustainability and risk resistance of corn production. Acknowledgments Thanks to the reviewers for their valuable feedback, which helped improve the manuscript. Conflict of Interest Disclosure The author affirms that this research was conducted without any commercial or financial relationships that could be construed as a potential conflict of interest. References Cao Y., Cai H., Sun S., Gu X., Mu Q., Duan W., and Zhao Z., 2022, Effects of drip irrigation methods on yield and water productivity of maize in Northwest China, Agricultural Water Management, 259: 107227. https://doi.org/10.1016/j.agwat.2021.107227 Chen L., Yue S., Sun L., Gao M., and Wang R., 2024, Study on the effects of irrigation quotas and amendments on salinized soil and maize growth, Water, 16(15): 2194. https://doi.org/10.3390/w16152194 Comas L., Trout T., DeJonge K., Zhang H., and Gleason S., 2019, Water productivity under strategic growth stage-based deficit irrigation in maize, Agricultural Water Management, 212: 433-440. https://doi.org/10.1016/J.AGWAT.2018.07.015 Ertek A., and Kara B., 2013, Yield and quality of sweet corn under deficit irrigation, Agricultural Water Management, 129: 138-144. https://doi.org/10.1016/J.AGWAT.2013.07.012 Fan J., Lu X., Gu S., and Guo X., 2020, Improving nutrient and water use efficiencies using water-drip irrigation and fertilization technology in Northeast China, Agricultural Water Management, 241: 106352. https://doi.org/10.1016/j.agwat.2020.106352
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