1 Introduction At present, the quality of life of the people is constantly improving, and everyone's awareness of environmental protection and water resources protection is constantly increasing, which provides a new development space for the construction of farmland water conservancy projects. Water-saving irrigation project is the key to the construction of farmland water conservancy project, which directly affects the construction quality and economic benefits of the project [1]. Therefore, the water conservancy project management department needs to attach importance to the application of irrigation technology, introduce efficient water-saving irrigation technology, and improve the overall quality of farmland water conservancy project construction. This paper mainly studies the development strategy of high-efficiency water-saving irrigation projects in farmland water conservancy projects. 2. Basic principles of efficient water-saving irrigation project 2. 1 Unified planning and step-by-step implementation. In the construction of high-efficiency water-saving irrigation project, relevant departments need to combine it with the national high-standard farmland construction standards. On the basis of understanding the supply and demand of water resources, the development and the present situation of ecological environment, the county-level farmland high-efficiency water-saving plan is compiled, the annual development goal is defined, the task of high-efficiency water-saving farmland is implemented in villages and plots, and the development scale of high-efficiency water-saving agriculture is continuously expanded. 2.2 According to local conditions, classified guidance In the process of promoting high-efficiency water-saving irrigation technology, relevant personnel need to define the promotion mode of high-efficiency water-saving technology according to the agricultural production level, supporting water conservancy projects and basic conditions of water-saving irrigation facilities, give full play to the water-saving, benefit and ecological advantages of high-efficiency irrigation water-saving technology, and optimize the agricultural planting structure. At the same time, in terms of task arrangement and technical subsidies, it is necessary to conduct classified guidance according to county economic development and user income level. 2.3 Improvement technology: According to the actual situation of various regions and crops, the corresponding drip irrigation fertilization system, furrow irrigation technical parameters and main push mode are formulated, and the furrow irrigation technology and pipe irrigation technology are combined to demonstrate and popularize the water and fertilizer integration technology of drip irrigation under plastic film in a targeted manner, so as to increase the experimental research on the law of water and fertilizer demand of crops, improve the level of drip irrigation technology, realize the combination of point and surface, and improve the comprehensive benefits of engineering construction. 3 Analysis of the current situation of high-efficiency water-saving irrigation projects in farmland water conservancy projects First of all, construction technicians need to apply water-saving irrigation technology according to the actual situation of the project site, but the professional level of many construction workers needs to be improved, and they lack attention to the inspection work of the construction site, and they cannot update the relevant resources and information of the construction site in time, which leads to a serious deviation between the calculation results and the actual situation. Secondly, in the process of irrigation, the relevant personnel still implement the traditional irrigation technology, fail to implement the modern irrigation concept, fail to fully understand the relationship between water conservancy irrigation and farmland yield, and pay little attention to water-saving irrigation technology, which seriously affects the crop yield in China. Finally, from the practical application of water-saving irrigation technology in China, the relevant technicians lack attention to the maintenance of technical equipment in the later stage, the equipment aging problem is more serious, and even there is a serious problem of "working with illness" [2]. Moreover, in the process of using water-saving irrigation technology, there is a serious problem of unscientific use of equipment, which shortens the service life of equipment. 4 Project Example Yuanmou County, Wei Chu, Yunnan Province is located in the dry-hot valley of Jinsha River, and the problem of water shortage in resources and projects is outstanding. In order to promote the development of agricultural economy, the local government invested and started the "Dayu Water Saving" project in Qinghe community on 20 13, burying pipes with drip holes in the fields and connecting them to nearby reservoirs. Farmers only need to swipe their cards on the smart water meter next to the fields to realize irrigation. 5. Development strategy of high-efficiency water-saving irrigation project of farmland water conservancy project 5. 1 Introduce advanced water-saving irrigation technology. At present, agricultural water-saving technologies such as full film mulching and drip irrigation under film have been effectively applied. Their application in Dayu water-saving project provides great opportunities for planning large-scale projects, building demonstration areas and popularizing new agricultural water-saving technologies in this area. Farmers in this area have made great contributions to agriculture by changing traditional concepts and vigorously popularizing high-efficiency water-saving irrigation technology. At the same time, in order to realize the pilot project construction of agricultural comprehensive water price reform, relevant departments, based on the construction platform of agricultural comprehensive development projects, take the construction of efficient water-saving projects as the carrier, innovate and optimize relevant mechanisms, seize the opportunity of agricultural comprehensive water price reform, and let many social capitals participate in the construction, operation and management of farmland water conservancy projects. 5.2 Vigorously develop efficient water-saving irrigation projects. In the construction of irrigation and water conservancy projects, the relevant departments need to rationally adjust the agricultural structure, introduce more advanced science and technology, improve the ecological environment, improve the comprehensive agricultural production capacity and comprehensive benefits, combine engineering measures, agricultural measures and biological measures, carry out comprehensive land management and development, use project support and enterprise investment, guide farmers to carry out land circulation, rationally lay drip irrigation pipe networks, and realize the high efficiency of water-saving agriculture. In addition, the water conservancy project construction department needs to follow high-standard planning and high-quality construction, fully integrate the resource innovation system, and vigorously develop the scale planting management of corporate operation to achieve the expected goals of increasing agricultural efficiency and increasing farmers' income. 5.3 Innovation and optimization of agricultural development model The first is to explore the reform model of three rights of farmers' water cooperatives. For example, Yuanmou County, Chuxiong Prefecture, established a professional water cooperative, and the project enterprises participated in the whole process of project construction, management and operation through share subscription to obtain more benefits. On the basis of cooperatives, explore the reform mode of "three rights" and allocate the initial water rights in the project area to village, household and farmer water cooperatives. Members can acquire the cooperative equity through share subscription, and get a minimum of 4.95% income to participate in the property right system reform of water conservancy projects. Secondly, implement the transformation and upgrading model of agricultural industry. Water conservancy construction departments vigorously implement efficient water-saving irrigation projects, optimize traditional agricultural irrigation modes, make full use of water resources, improve crop multiple cropping index and yield, realize land circulation in the project area, and effectively adjust the agricultural industrial structure. 6 Effect of high-efficiency water-saving construction project Yuanmou County, Chuxiong Prefecture has made great achievements by introducing high-efficiency water-saving irrigation technology: (1) By introducing advanced irrigation technology, the utilization rate of water resources reached 95%, and the average water consumption per mu decreased from 600~800m3 to 180~240m3. (2) Compared with the traditional flood irrigation technology, the pipeline water supply technology makes the agricultural production increase rate reach 26.6%, the income increase rate reach 17.4%, the water supply guarantee rate increases to 75%, and the farmers' awareness of water saving is constantly enhanced; (3) Win-win for all three parties: First, the income of farmers increased, and the average water consumption cost decreased from 1.258 yuan/mu to 350 yuan/mu, with an increase of 5,000 yuan/mu (1 mu = 666.67m2); Secondly, the enterprise is profitable. The payback period of the enterprise's capital is 5-7 years, and the profit in 20 years reaches 360 million yuan, with an average annual yield of 7.95%. Finally, the government saves water, and the annual water saving is more than 2 158m3, which solves the land irrigation problem of the county 1/4. (4) realize the transformation and upgrading of agricultural industry. The application of efficient water-saving irrigation technology has transformed the traditional planting mode into a high-tech modern agricultural form, and decentralized management into a scale management form [3]. Conclusion To sum up, in the rapid development of agricultural economy, the problem of agricultural water use is becoming more and more serious, and relevant departments need to effectively control irrigation water and effectively solve the problem of water waste. In the construction of farmland water conservancy projects, relevant departments need to introduce efficient water-saving irrigation technology to improve the rural production environment, increase farmers' income and promote the rapid development of rural economy.
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