What are the ways to irrigate farmland? Which method is more water efficient?

Sprinkler irrigation mode, drip irrigation mode, brackish mixed watering mode, channel and ditch seepage prevention mode, rain collection and irrigation mode, comprehensive water-saving mode, water-saving dry farming mode, water-saving irrigation and structural adjustment mode. Ground irrigation is still a common irrigation mode in China's irrigation agriculture, accounting for more than 95 of the country's total irrigation area, the investment cost of furrow irrigation is low, the field engineering facilities are simple and easy to operate, so for a long time in the future, the irrigation technology of China's agriculture will still be based on ground irrigation, sprinkler irrigation adopts pressurized water transportation, so the water pressure at the sprinkler head is larger, its range is generally more than 10 meters, compared with other water-saving irrigation, the early investment of sprinkler irrigation is low, the equipment is simple, and the later maintenance cost is relatively less, For the agricultural industry, where it is difficult to make a profit, the low cost and low maintenance add applicability to sprinkler irrigation.

Drip irrigation is an irrigation technology that can implement the integrated precise supply of water and fertilizer and automatic control. With the reduction of drip irrigation belt pipe production costs, its application has been made by cash crops.

Extended to field food crops.

Drip irrigation uses plastic pipes to transport water, the pipes are lightweight, simple in structure, easy to lay, can adapt to complex terrain, and different drippers can also adapt to soil conditions and irrigation needs of crop growth.

Recommendations for irrigation of farmland

Several major problems in irrigation areas in ChinaIrrigation and water conservation is one of the important research contents in the current water-saving agricultural system, and it is an important measure to give full play to water resources and effectively use water resources, although water resources are renewable resources.

Water resources are the lifeblood of agricultural production, and the irrigation area and irrigation quality directly affect the yield of agricultural crops, but the scarcity of water resources and the uneven distribution of water resources in China are not enough.

Suggestions for improving water-saving irrigation technology The application of water-saving irrigation technology can significantly improve the efficiency of farmland irrigation water utilization, under the guidance and support of the state and the recognition of most people, water-saving irrigation technology has been recognized, in order to ensure the intensity of farmland irrigation, it is also the construction of a large number of farmland irrigation projects, which is beneficial to agricultural production and development.

Flood irrigation, water pipe jetting, drip irrigation, furrow irrigation, furrow irrigation, these are generally the most basic ways of farmland irrigation, these methods are the most water-saving compared with drip tanks.

The methods of farmland irrigation include drip irrigation, sprinkler irrigation, micro sprinkling, slow irrigation, and furrow irrigation; Drip irrigation is very water-saving.

1. Sprinkler irrigation method, which is suitable for any terrain and crops.

2. Micro-irrigation irrigation method, which not only has significant water-saving and energy-saving effects, but also has strong adaptability to terrain and crop types.

3. Infiltration irrigation method, which uses engineering facilities to infiltrate the root soil of crops, has certain limitations in use.

Open and large-scale farmland is suitable for sprinkler irrigation, which can save manpower and fresh water resources, so that the planting cost can be reduced.

Flat, this can work very well. The advantage is to save manpower and material resources, which is a better practical item.

What are the ways to irrigate farmland? Which method is more water-efficient?

The method of sprinkler irrigation, which is now widely used in the world, saves both water and manpower. 2.In many areas, sprinkler irrigation will be used to irrigate crops, if sprinkler irrigation is added to the greenhouse.

It will be more water-efficient because there is less evaporation. 3.The second method is drip irrigation by laying pipes on a rough bench, which is also widely used in many areas, especially in some arid areas, and even desert areas.

4.In the drip irrigation method, as long as the pipeline is arranged near the roots of the plant, there can be an adjusting valve on the pipe to adjust the amount of water that needs to be produced according to the state of plant growth.

China's "Twelfth Five-Year Plan" makes it clear that the state will increase investment in water conservancy construction, build hundreds of water-saving agricultural demonstration areas nationwide, add 100 million mu of water-saving agricultural technology promotion area, and increase the production efficiency of irrigation water and natural precipitation by 10%. What are the main ways of water-saving irrigation?

1. Pipeline water transportation. Pipeline water conveyance is the use of pipelines to transport water directly to the field for irrigation, so as to reduce leakage and water evaporation loss during the transportation of open channels. In developed countries, pipelines have been widely used for irrigation and water transport.

At present, the popularization and application of pipeline water in the well irrigation areas in northern China is also very fast. Commonly used pipes include concrete pipes, plastic hard (flexible) pipes, metal pipes, etc. Compared with channel water transportation, pipeline water transportation has the advantages of fast water transmission, water saving, land saving, and increased production.

The advantages are: the water use coefficient can be increased to; 20%-30% power saving; Save 2%-3%; Production increased by 10%. At present, low-pressure plastic pipes are used to transport water, excluding the investment in water source engineering construction (the same below), and the investment per mu is 100 yuan to 150 yuan.

When conditions permit, pipeline water transmission should be actively developed in light of the actual situation. However, pipeline water transmission only reduces water loss in the process of water transportation, and in order to use water efficiently, it is necessary to support water-saving measures such as spraying and drip irrigation. Where sprinkler and drip irrigation equipment cannot be supported at present, the requirements of future sprinkler and drip irrigation development on pipeline layout and pipeline bearing capacity should be considered to avoid waste.

2. Infiltration irrigation is a method of using porous pipes or microporous tubes with small holes buried under the surface to make irrigation evenly and slowly penetrate into the underground soil in the root zone of crops, and use capillary force to moisten the soil. This technology has the characteristics of water saving, energy saving and convenient cultivation. Do not damage the soil structure; It is good for the control of weeds and pests and diseases.

In Israel, water-saving irrigation technology is ubiquitous. Drip irrigation facilities are laid from farmland, orchards, urban boulevards, and even flower pots or trees on residents' balconies. 90% of the greenhouse planting is drip irrigation, which is mainly used for high value-added vegetables, fruits, flowers and other crops, and the maximum water resource utilization rate reaches 95%.

Therefore, it is very feasible and necessary for China to adopt water-saving irrigation technology to ensure food security in the arid areas of western China.

3. Micro-sprinkler irrigation is a new development situation of micro-sprinkler irrigation. This is the use of plastic pipes for water delivery and local irrigation through micro-sprinkler irrigation.

4. Drip irrigation is the use of plastic pipes to transport water to the roots of crops, and local irrigation is carried out through the orifice or dripper on the capillary with a diameter of about 10 mm.

Drip irrigation, sprinkler irrigation, etc. drip irrigation, which is irrigated through a low-pressure piping system according to the water requirements of crops; Sprinkler irrigation, where pressurized water is sprayed into the air through a sprinkler pipe to form water droplets.

Sprinkler irrigation, drip irrigation, underground irrigation, micro-irrigation, channel irrigation. These are very common ways.

Drip irrigation, sprinkler irrigation, etc. drip irrigation, which is irrigated through a low-pressure piping system in accordance with the requirements of the necessary water for crops; Sprinkler irrigation, which radiates pressurized water to the ground through the sprinkler pipe to form water droplets.

Drip irrigation, film irrigation, sprinkler irrigation, pressure irrigation, micro sprinkler irrigation, these can save water and allow plants to grow better.