Rushan City, Shandong Province is located in a severely water-deficient area in the north. Although the river bank is rich in resources, there is no guest water entering the country, and the underground is poor. The surface and groundwater are mainly recharged by atmospheric precipitation. The per capita water resources are only 1/1 of the national average. 7. Rushan City is a county-level city dominated by agriculture. Agricultural irrigation water accounts for more than 70% of the city's total water consumption, but the proportion of water-saving irrigation is low. The effective utilization rate of irrigation water is only 40%, less than half of the advanced areas. . Most villages still rely on flood irrigation, and drought and water shortage have become the main obstacles restricting agricultural development. There are also excessive fertilization in farmers in Rushan. The average fertilizer application per mu is 35.5 kg, which is much higher than the average level in Shandong Province. Excessive fertilization not only causes waste of resources, soil compaction and soil fertility, but also reduces the quality of agricultural products and destroys the ecological environment.

In order to effectively solve the problem of agricultural irrigation water shortage and water and fertilizer separation, Rushan City visited Yantai City several times to learn about water and fertilizer integrated infiltration irrigation technology. Water and fertilizer integration has the characteristics of water saving, fertilizer saving, time saving, labor saving, high yield and high quality; seepage irrigation, ie underground irrigation, is the use of underground pipelines to import irrigation water into the field and buried in a depth of water seepage pipe or rat hole. A method of moistening soil by means of soil capillary action. The infiltration irrigation system uses pipelines to deliver water. The irrigation water is directly supplied to the roots of the crops through the irrigation pipes. The surface soil moisture is low, which can reduce the evaporation of the ground, the leaves of the crops remain dry, and the evaporation between the crops is minimized. The rate is lower than the saturated water content. Therefore, the utilization rate of irrigation technology is the highest among all irrigation technologies, which improves irrigation water utilization and saves a lot of water resources.

After the implementation of water and fertilizer integrated infiltration irrigation technology, there is no water on the surface, no soil compaction, good gas permeability, improved ecological environment, fertilizer conservation and low system investment. The specific performance is as follows: First, the water saving effect is remarkable. Compared with traditional irrigation methods, seepage irrigation has obvious water-saving and yield-increasing functions. It irrigates crops through underground pipelines, which is uniform and stable, with low evaporation, and can also reduce deep leakage, improve irrigation water utilization, and save a lot of water resources. At the same time, the irrigation is only to irrigate the roots of the crops, and the surface of the soil remains dry. This also effectively reduces the evaporation of ground water. After the irrigation, the soil remains loose, does not damage the soil structure, does not produce soil surface compaction, and maintains soil moisture. Conducive to better absorption and growth of crops. The second is to reduce pests and diseases, which is conducive to the cultivation of green vegetables. The main cause of pests and diseases in vegetables is the high temperature and non-circulation of vegetables in the vegetable shed. This special environment creates conditions for the breeding of pests and diseases. The use of seepage irrigation can reduce the evaporation of water, which will significantly reduce the shed. Temperature and humidity, thus reducing the occurrence of pests and diseases, it also reduces the use of pesticides, cultivates naturally grown vegetables, and fundamentally solves the problem of green vegetable cultivation quality. The third is high water use efficiency. Irrigation irrigation uses underground pipeline irrigation, evaporation water is greatly reduced, and water resources are fully utilized. In addition, due to the deep leakage, the water is fully absorbed and the plants are supplemented with higher water. Irrigation improves the utilization of water and reduces unnecessary water consumption. Generally speaking, traditional irrigation techniques use one to two days to irrigate on average, while infiltration irrigation technology can be used once a week to save invisibly. Water resources and human resources, saving labor and time. The pipeline is buried underground, not only the most effective use of water and fertilizer, but also the reduction of land occupation, facilitating transportation and field operations. As long as the water and the fertilization are mixed in proportion, irrigation and farming activities can be carried out at the same time. The deep underground buried pipeline also avoids vandalism and loss, and the service life can reach 15 years. Statistics show that the field utilization rate of seepage irrigation can reach 95%, the irrigation rate is 75% than that of flood irrigation, 25% water saving by sprinkler irrigation, 50% fertilizer saving, 60% labor saving, etc. The irrigation technology truly achieves precise irrigation. And precise fertilization.