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Agricultural irrigation

Agricultural irrigation methods can generally be divided into the traditional surface irrigation, sprinkler irrigation and micro-irrigation ordinary. Traditional surface irrigation including border irrigation, furrow irrigation, basin irrigation and flood irrigation, but these are often water-intensive irrigation methods, lower water use force, is a kind of very irrational way agricultural irrigation. In addition, ordinary sprinkler technology is more common in China's agricultural production irrigation methods. However, the utilization efficiency of ordinary water sprinkler technology is not high. Modern agricultural micro-irrigation technology, including micro-irrigation, drip irrigation, subsurface irrigation and so on. These water-saving irrigation technology is good general performance, utilization of water than traditional irrigation mode high, of course, there are some drawbacks.

Traditional way

The traditional irrigation methods to surface water from entering the field and infiltration by gravity and capillary action of soil, it is also known as gravity irrigation method. This approach is the oldest and most widely used, most notably an irrigation methods. Moist soil according to their different ways, can be divided border irrigation, furrow irrigation, basin irrigation and flood irrigation.

1, border irrigation basin irrigation is the ridge to irrigate the land is divided into a series of small rectangular plot. When irrigation, after the introduction of water of irrigation, the water layer is very thin on the Border is formed, moving along the long stretch of direction in the flow process mainly by gravity gradually moist soil.

2, furrow furrow between crop rows in the irrigation ditch excavation, the water from the ditch into the irrigation ditch lost in the flow of the process, mainly by means of capillary action moist soil. And border irrigation comparison, the obvious advantage is not damage crops soil structure near the base, does not lead to Tian panel junction, can reduce soil evaporation loss, for wide-spaced row crops.

3, the basin irrigation (with said grid Irrigation) basin irrigation is used to irrigate the land ridge aqueous layer is divided into a number of grid fields, while maintaining irrigation grid fields within a certain depth, by gravity moist soil, mainly for rice irrigation.

4, flooding flooding is not in the field any ditch ridge, irrigation when he was its overland flow, by gravity into the soil, is a more extensive irrigation methods irrigation uniformity is poor, the larger the amount of water wasted.

Water-saving way

Agriculture (including horticulture industry increasingly active) as the country's economic lifeline and water users, and for a long time, because of ideology, funding, technology and other aspects, has been in use behind traditional flood irrigation. However, with the shortage of water resources and demand increased water conflicts between growing year by year, flood irrigation is gradually being focused on precise irrigation modern water-saving irrigation mode replaced.

Modern scientific irrigation technology, not only can effective use of limited water resources, ease the excessive exploitation of groundwater, crust sinking grim situation, equally important is the ability to accurately by combining organic fertilizer to improve crops, fruit trees and other growing conditions improve yield and fruit quality, with good social and economic benefits.

Weipen is the use of refraction, rotation, or radiation micro irrigation sprinklers spray water to form branches and other regional crops belonging to the category of micro-irrigation. Ejecta low operating pressure, low flow, can increase soil moisture, but also improve the air humidity adjusting the local micro-climate, it is widely used. In addition, you can also use the part of the super-micro nozzle atomization capabilities for cutting nursery, farms and other places to cool.

Drip irrigation is installed on the capillary drops arrows, emitters, drip tape or other orifice-type emitter water drop by drop, uniform and slow to trickle irrigation of crops form the root zone of the soil nearby.

Due to the small drip flow, slow infiltration, mainly by means of capillary diffusion of tension is one of the most effective kinds of water conservation and irrigation methods.

Local precision irrigation, which greatly limits to improve the utilization of water, reducing the breeding of weeds, improve soil structure, reducing the water pressure requirements at the same time through a header fertilization means fertilization accurate, truly done low-input, high yields.

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