Irrigation is a discipline that studies how to effectively utilize water resources to meet the growth needs of plants in agriculture, horticulture, and forestry. It is a discipline that studies artificial water diversion, irrigation, and drainage technology, and its main content includes but is not limited to the following aspects:
Hydrology: study natural hydrological processes such as rainfall, evaporation and runoff to provide basic data for irrigation design.
Soil moisture: Study the laws of soil moisture transport and soil moisture management methods, providing a basis for irrigation decision-making.
Irrigation water volume: discuss the calculation method and influencing factors of irrigation water volume, and how to calculate appropriate irrigation water volume according to crop water demand, soil type, climate conditions and other factors.
Soil moisture balance: Explain the concept and principles of soil moisture balance, as well as how to maintain soil moisture balance through irrigation.
Irrigation system: Study the irrigation water demand, irrigation frequency, irrigation methods, etc. of different crop growth stages, and develop scientific and reasonable irrigation systems.
Irrigation facilities: The basic components and working principles of an irrigation system, including water sources, pumps, pipelines, nozzles, etc., as well as the selection, design, installation, and maintenance of irrigation water equipment, pipelines, valves, and other facilities.
Irrigation water quality: Study the water quality requirements and treatment techniques for irrigation water to ensure that the irrigation water quality meets the needs of crop growth.
Irrigation management: Study the methods and techniques of irrigation management, including irrigation scheduling, water control, irrigation effect monitoring, etc. Introduce the principles and methods of irrigation management, including management of irrigation timing, frequency, water quantity, fertilization, etc., and explore how to improve agricultural production efficiency and water resource utilization efficiency through irrigation optimization.
The impact of irrigation on the environment: Discuss the impact of irrigation on soil, water quality, ecological environment, and other aspects, as well as how to reduce adverse effects through reasonable irrigation management.
Irrigation economy: Study the economic and social benefits of irrigation on agricultural production, providing economic analysis basis for irrigation decision-making.
Development of irrigation technology: Review the historical development and current situation of irrigation technology, introduce the characteristics and applications of new irrigation technologies. The role and challenges of irrigation technology in sustainable development, including how to balance agricultural production and water resource protection.
In short, irrigation science is a comprehensive discipline that involves multiple fields such as natural science, engineering technology, and social economy. Its content includes modern irrigation technology, efficient irrigation technology, and digital irrigation technology.
Utilize modern technological means to carry out refined and intelligent water resource management and utilization on farmland. This technology includes advanced technologies such as automated control systems, sensors, remote sensing technology, geographic information systems, etc. It can accurately calculate irrigation water consumption based on factors such as land type, crop water demand, meteorological conditions, and achieve precise water allocation and timed and quantitative irrigation through automated equipment, thereby improving water resource utilization efficiency, reducing water costs, and improving crop yield and quality. In addition, modern irrigation technology also includes efficient water-saving irrigation technology, which refers to various irrigation methods such as drip irrigation, sprinkler irrigation, micro irrigation, sprinkler irrigation, as well as various supporting technologies such as water-saving irrigation, photosynthesis regulation, and soil improvement, providing comprehensive technical support for agricultural production.
Efficient water-saving irrigation technology is an irrigation technology that efficiently utilizes water resources in irrigation. It includes the following content:
Efficient water-saving irrigation technology: Introduce various efficient water-saving irrigation technologies, such as drip irrigation, micro sprinkler irrigation, rotating sprinkler irrigation, etc., as well as their advantages, disadvantages, and applicability.
Irrigation management: Introduce how to carry out irrigation management, including regular inspection of irrigation equipment, adjustment of sprinkler heads and irrigation time, etc.
Irrigation automation control: Introduce how to use modern technology to achieve irrigation automation control, including sensors, computer control systems, etc.
Economic and environmental benefits: Introduce some successful cases of applying efficient water-saving irrigation technology, and analyze its economic and environmental benefits.
Irrigation safety and environmental protection: Introduce how to ensure irrigation safety and environmental protection, including avoiding soil salinization and reducing water pollution.
Modern irrigation technology also includes digital irrigation technology. It is one of the practical modern irrigation technologies, which fully utilizes high-tech cutting-edge technologies to achieve digital and intelligent operation and management of irrigation. Its foundation is to use technologies such as remote sensing and the Internet of Things to collect information on farmland soil, meteorology, crops, etc. Through calculation and analysis, irrigation timing, irrigation volume, and method are determined, thereby achieving intelligent automatic irrigation.
Digital irrigation technology is mainly divided into the following categories:
Digital irrigation technology based on soil moisture sensors: Real time data of soil moisture is obtained using soil moisture sensors, and data analysis is carried out combining meteorological, crop and other factors to achieve intelligent and precise irrigation.
Digital irrigation technology based on remote sensing technology: use remote sensing satellites to monitor farmland, obtain information such as land cover, crop growth, topography, etc., establish digital irrigation models, and improve the accuracy and efficiency of irrigation.
Digital irrigation technology based on Internet of Things technology: Utilizing technologies such as sensors, Internet of Things communication, and cloud computing to achieve real-time monitoring and data analysis of information such as farmland soil, meteorology, and crops, thereby achieving digital intelligent irrigation control.
Digital irrigation technology based on machine vision technology: uses machine vision technology to identify and classify crop growth stages and other conditions, in order to achieve intelligent and precise irrigation.
Digital irrigation technology can improve agricultural production efficiency, reduce irrigation water consumption, protect the ecological environment, and is one of the important modern irrigation technologies.