CN1409959A - New type irrigation method and its irrigation system - Google Patents
New type irrigation method and its irrigation system Download PDFInfo
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- CN1409959A CN1409959A CN 01136209 CN01136209A CN1409959A CN 1409959 A CN1409959 A CN 1409959A CN 01136209 CN01136209 CN 01136209 CN 01136209 A CN01136209 A CN 01136209A CN 1409959 A CN1409959 A CN 1409959A
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Abstract
A novel irrigation method is disclosed. It features negative-pressure irrigation for effectively regualtion of irrigation. Its irrigation system is composed of water source, water-delivering pipeline, and irrigators buried near the roots of crops and communicated with the said water-delivering pipeline. It features that the level of water source is same as or lower than the level of irrigators. Its advantages are low cost and saving water.
Description
The present invention relates to a kind of irrigation method and irrigation system that is used for agricultural, belong to the irrigation technique field.
China generally adopted extensive surface irrigation form in the past, and efficient is extremely low, and water resource waste is very big.In recent years, the development of water-saving agriculture was very fast.The irrigation installation that water-saving irrigation is adopted is: sprinkling irrigation, microspray irrigation, drip irrigation, infiltrating irrigation or underground drip irrigation etc.Sprinkling irrigation often has difficulties many local application the in northern China arid and semi-arid area: these microclimate arids, wind-force are bigger, and evaporation of water and drift loss make that the water-saving result of system is not very good in the sprinkling irrigation process; Moreover system operation needs the feedwater pressurization, under the still nervous situation of a lot of outlying mountain area energy, is difficult to guarantee in time to irrigate.By contrast, irrigation system (comprising little spray, drip irrigation) has good water-saving result, but still has problems such as energy supply, system cost, moreover the moisture loss that the evaporation on the moistening face of land produces after irrigating also receives publicity.Though the underground drip irrigation system system may work under very low pressure, still needs the water lift pressurized equipment.The fluctuating on the face of land and manufacture deviation often cause that the uniformity of irrigation water appilcation of irrigator reduces.System is under the normal condition pressure condition, when internal system produces negative pressure because of certain reason, very easily sucks soil particle etc., causes irrigator and stops up.
The objective of the invention is to provide a kind of irrigation method and irrigation system thereof, and with using water wisely, the reduction system builds and operating cost, improves output and product quality.
In order to reach the irrigation method that purpose of the present invention takes is that negative pressure is irrigated, the water surface 1 that is used water source can be lower than the irrigator of imbedding in the crop-planting soil root district 8, can imbed the underground aqueduct 11 on the face of land that also can place and directly communicate, between the crop-planting soil root district and the water surface 1, build an adjustable subnormal ambient with water source 2; Controlling irrigation water can realize by the size that the water level that reduces or improve water source 2 is regulated negative pressure.
Use the irrigation system of above-mentioned irrigation method, comprise water source 2, aqueduct 11, irrigator 8, it is characterized in that, the water surface 1 at water source 2 and irrigator 8 are concordant or at irrigator below 8, the water level at water source 2 is adjustable, aqueduct 11 is directly drawn by water source 2 and is layered on the face of land or imbeds undergroundly, and irrigator 8 is embedded near the crop root and is connected on the aqueduct 11.
Above-mentioned novel water-saving irrigation method and irrigation system thereof is characterized in that, the water surface 1 at water source is 0 ~ 8 meter with the height difference H of crop-planting face 5.
Above-mentioned novel water-saving irrigation method and irrigation system thereof is characterized in that, do not have pressure pump of the prior art between the water surface 1 and irrigator 8.
The present invention has proposed the negative pressure irrigation method first, discloses the negative pressure irrigation system.Negative pressure is irrigated and to be meant that source of irrigation water is less than or equal to the irrigator elevation, irrigate and under positive pressure, do not realize, but do not have press or negative pressure condition under since the caused soil suction of consumption soil moisture of crop realize irrigating.Negative pressure irrigation method of the present invention is built the subnormal ambient of an adjustable size between crop-planting soil root district and water source, need not pump of the prior art and suction hose, water is directly guided to crop root by the water source by aqueduct.When being used as material consumption water, absorb the moisture in the soil, soil moisture content reduces, and negative pressure increases, and soil absorbs moisture from irrigator, and irrigator absorbs moisture by aqueduct from the water source.Whole irrigation process relies on negative pressure to absorb moisture fully and finishes, the crop suction state that always has the initiative.The adjusting of vacuum magnitude can realize by the water level that changes the water source.What of moisture crop absorb, and are relevant with the water level at water source, and the moisture that crop absorbs can be controlled by the position that changes the water source water surface fully.When the water source water surface and irrigator were in a close elevation, crop was in abundant water supply state, and when the water source water surface was lower than the irrigator elevation, crop may be in deficit irrigation, was much as for irrigation degree of waning, and is relevant with the water surface site at water source.
Because native system adopts crop to absorb to be produced negative pressure behind the soil water and draw water in the irrigation conduit in soil, power need not the facility that pressurizes from crop, also consumes energy not; Crop needs water to obtain at any time automatically (can regulate ground) supply, may improve the output of crop to greatest extent and improve quality; Duty is determined that by water requirements of crops the uniformity of irrigation system obtains best satisfying; Because irrigator is imbedded below the face of land, has eliminated the evaporation loss of irrigation water substantially; Only when the crop root region soil flow of water is lower than depth displacement between the water source water surface and irrigator, system is just to soil water supply, thereby regulates the depth displacement between water source and ground, can control system supply water to crop root zone, irrigates thereby reach sufficient regulation and control depletion; Fertilising will be very easy.Because system is in continual running status, to compare with conventional irrigation system, irrigation period prolongs greatly, thereby can the contemplated system pipeline specifications littler than conventional system, so just can reduce the cost of system.
Accompanying drawing is an irrigation system structural representation of the present invention.
The present invention is described further below in conjunction with accompanying drawing.
As shown in the figure, 1 is the water surface, and 2 is the water source, and 3 is air bleeding valve, and 4 is manometer, and 5 is the crop-planting face, and 6 is fertilizer spreading tank, and 7 is gate valve, and 8 is irrigator, and 9 is non-return valve, and 10 is filter, and 11 is aqueduct.Open gate valve 7, when being used as material consumption water, absorb the moisture in the soil, soil moisture content reduces, and when soil moisture was reduced to a certain degree, the suction of its generation surpassed the negative pressure of irrigator internal water, and soil absorbs moisture from irrigator 8; And under suction function, absorb the moisture at water source by aqueduct 11; System normally moves for assurance, in the stem of aqueduct 11 filter 10 is installed; For anti-sealing refluxes, non-return valve 9 is installed before filter 10; The discrepancy in elevation of the water source water surface 1 and irrigator 8 is 0～8 meter, when irrigation system is worked, and can be by the pressure of current in the reading control pipeline of vacuum meter 4.
Claims (4)
1, a kind of negative pressure that is characterized as of novel irrigation method is irrigated, the water surface (1) that is used water source can be lower than the irrigator of imbedding in the crop-planting soil root district (8), can imbed the underground aqueduct (11) on the face of land that also can place and directly communicate, between the crop-planting soil root district and the water surface (1), build an adjustable subnormal ambient with water source (2); Controlling irrigation water can realize by the size that the water level that reduces or improve water source (2) is regulated negative pressure.
2, a kind of irrigation system of using the described irrigation method of claim 1, comprise water source (2), aqueduct (11), irrigator (8), it is characterized in that, the water surface (1) at water source (2) is concordant with irrigator (8) or below irrigator (8), the water level at water source (2) is adjustable, aqueduct (11) is directly drawn by water source (2) and is layered on the face of land or imbeds undergroundly, and irrigator (8) is embedded near the crop root and is connected on the aqueduct (11).
3, novel irrigation method according to claim 1 is characterized in that, the difference in height between the water surface (1) and the irrigator (8) is 0 ~ 8 meter.
4, irrigation system according to claim 2 is characterized in that, the difference in height between the water surface (1) and the irrigator (8) is 0 ~ 8 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136209 CN1198500C (en) | 2001-10-10 | 2001-10-10 | New type irrigation method and its irrigation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136209 CN1198500C (en) | 2001-10-10 | 2001-10-10 | New type irrigation method and its irrigation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1409959A true CN1409959A (en) | 2003-04-16 |
| CN1198500C CN1198500C (en) | 2005-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01136209 Expired - Fee Related CN1198500C (en) | 2001-10-10 | 2001-10-10 | New type irrigation method and its irrigation system |
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| Country | Link |
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| CN (1) | CN1198500C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102318543A (en) * | 2011-05-25 | 2012-01-18 | 太原理工大学 | Negative-pressure automatic irrigation device |
| CN104322353A (en) * | 2014-10-17 | 2015-02-04 | 河南省新乡市农业科学院 | Root layer moisture monitoring-based winter wheat regulated deficit irrigation method |
| CN104737883A (en) * | 2015-04-17 | 2015-07-01 | 湖南农业大学 | Movable negative pressure irrigating system and method for oil-tea camellia stand |
| CN105303451A (en) * | 2015-11-20 | 2016-02-03 | 青岛农业大学 | Suitability evaluation method of micro-irrigation and fertilization system |
| CN109267607A (en) * | 2018-10-29 | 2019-01-25 | 河海大学 | A kind of unpowered irrigation and drainage system with functions of shore bank landscape |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103875509A (en) * | 2014-02-28 | 2014-06-25 | 中国农业大学 | Negative pressure irrigation system and method |
-
2001
- 2001-10-10 CN CN 01136209 patent/CN1198500C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102318543A (en) * | 2011-05-25 | 2012-01-18 | 太原理工大学 | Negative-pressure automatic irrigation device |
| CN104322353A (en) * | 2014-10-17 | 2015-02-04 | 河南省新乡市农业科学院 | Root layer moisture monitoring-based winter wheat regulated deficit irrigation method |
| CN104737883A (en) * | 2015-04-17 | 2015-07-01 | 湖南农业大学 | Movable negative pressure irrigating system and method for oil-tea camellia stand |
| CN105303451A (en) * | 2015-11-20 | 2016-02-03 | 青岛农业大学 | Suitability evaluation method of micro-irrigation and fertilization system |
| CN109267607A (en) * | 2018-10-29 | 2019-01-25 | 河海大学 | A kind of unpowered irrigation and drainage system with functions of shore bank landscape |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1198500C (en) | 2005-04-27 |
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