Achieving water conservation and enhancing economic benefits while ensuring normal crop growth has become a key issue in irrigation design.

Firstly, irrigation design must fully consider the water requirements of crops. Employing water-saving measures is essential to prevent water resource wastage in engineering projects. The construction and operational costs of irrigation projects directly impact the economic returns of farmers and agricultural producers.

Therefore, during the irrigation design process, it is necessary to comprehensively consider costs related to construction, equipment procurement, energy consumption, and maintenance. Through rational planning and design, optimizing the allocation of water resources and the layout of irrigation facilities can reduce costs and thereby enhance economic benefits.

Additionally, utilizing renewable energy and energy-saving technologies, such as solar and wind power, can lower energy consumption and operational costs, further improving the economic efficiency of irrigation projects.

Selecting appropriate irrigation methods is also a crucial approach to water conservation. Compared to traditional irrigation methods, adopting efficient water-saving techniques like drip irrigation and subsurface irrigation can deliver water directly to the crop roots, reducing evaporation and loss, thus achieving water savings.

Furthermore, employing modern irrigation technologies, such as automated control systems, allows for more precise management of irrigation volume and frequency, enhancing economic benefits.

Integrating fertigation design into irrigation planning is also an important method for water conservation. Through rational fertilization and irrigation, the efficiency of water use by crops can be improved. The design should strengthen the planning of hardware and software for monitoring and management. By monitoring soil moisture and crop growth conditions through design, irrigation volume and frequency can be adjusted timely.

Irrigation design should also consider environmental protection and sustainable development. On one hand, irrigation design can help reduce the over-extraction of water resources by agriculture, alleviate pressure on groundwater and rivers, and maintain the health of aquatic ecosystems. On the other hand, it can help reduce agricultural non-point source pollution.

How to consider water conservation and enhance economic benefits in irrigation design is a complex yet crucial issue. Designing irrigation projects must emphasize cost-effectiveness. Through measures such as rationally scheduling irrigation times, selecting appropriate irrigation methods, integrating fertigation equipment, and strengthening the monitoring and management of irrigation systems, water can be effectively conserved and economic benefits improved.