Water-Saving Irrigation is a modern engineering technology. Whether it is engineering water-saving, agricultural water-saving and management water-saving, it must be established on the basis of industrial production of water-saving irrigation materials and equipment. It can be said that this is one of the prerequisites to be solved for large-scale and water-saving irrigation. Through more than 20 years of efforts, China has established a certain foundation in the research and engineering practice of water-saving irrigation technology. By contrast, the development of support industry and related industries is slow and difficult to adapt to the needs of large-scale popularization of water-saving irrigation, and the current situation is not optimistic.
The equipment used in different forms of water-saving irrigation projects have certain commonalities, but most of them are characteristics, so the equipment is usually developed and matched around various water-saving irrigation technologies, forming their own systems. The current market demand process material equipment, pipeline water engineering material equipment and so on. Irrigation equipment: China's production of irrigation equipment is mainly large, medium, small, light irrigation machines, irrigation pumps, irrigation land buried pipes and ground mobile pipes, sprinkler heads, auxiliary equipment, etc. China's Sprinkler Irrigation project area has reached 19 million mu, of which about 75% use light and small sprinkler, large and medium-sized sprinkler irrigation area accounts for about 10%, semi-fixed pipe sprinkler irrigation accounts for about 15%. Micro irrigation equipment: the micro irrigation equipment produced in China mainly includes filter, fertilizer and other first hub equipment, pipes and connectors, Drip Irrigation Pipe (belt), Micro Sprinkler head, infiltration irrigation pipe, etc. According to statistics, by the end of 1997 China's micro-irrigation area has reached 2 million mu, mainly used for fruit trees and facilities of agricultural crops irrigation. It is essential to realize precise irrigation automatic control equipment. Although such equipment has been developed in China, it has not formed products. In the future, we should guide the work in this respect to improve the supporting capacity and overall level of micro-irrigation equipment in China. Channel anti-seepage new materials and construction machinery: membrane material anti-seepage performance is good, adapt to deformation ability, simple construction, low cost advantages, widely used, China in the mid-1960s has used membrane material for channel anti-seepage, but there was no special anti-seepage membrane material. Low-pressure pipeline water conveyance equipment: During the seventh Five-year Plan period, the former State Science and Technology Commission and the Ministry of Water Resources organized key research on low-pressure pipeline water conveyance technology to meet the needs of water-saving in well irrigated areas, which promoted the development of related industries. Low pressure pipeline technology in China is in the early 80 s water saving irrigation urgent mission, but the shortage of investment and cases, in the developed area, therefore, positioning technology is low, the system positioning depend, to promote the all-round development of related industry, in turn, also restrict the development of the pipeline technology and expand in the field of application.
Water-saving irrigation materials and equipment come from the enterprises that produce them, and the current situation of enterprises reflects the situation of products to a certain extent. The production scale is small: the products of many enterprises only account for a part or a small part of special materials and equipment for water-saving irrigation. The small scale of production restricts the development of enterprises, and also seriously restricts the updating and quality improvement of water-saving irrigation materials and equipment. Low degree of specialization: Many of the enterprises producing special materials and equipment for water-saving irrigation in China are based on the original production field, and some of them are converted to produce water-saving irrigation materials and equipment. Therefore, most of them are not specialized factories, with complex product structure and weak correlation. This situation determines that the production organization form is small batch production with common equipment and common technology, which makes it difficult to guarantee product quality and reduce production cost. Backward production technology and equipment, into the water saving irrigation production enterprise, is often seen in the 70 s and '60 s and 50 s production equipment, these devices have a plenty of the factory equipment, have is sell to the big businesses obsolete equipment, backward production technology and equipment also is one of the backward of the production process. Lack the action of industry bibcock enterprise: small and scattered processing production does not mean lag behind certainly, the key is to want to have bibcock enterprise to develop the action of main engine factory, small enterprise should undertake specialization around bibcock enterprise to produce.
