CN101743889B - Low position irrigation method for cotton planted in southern areas - Google Patents
Low position irrigation method for cotton planted in southern areas Download PDFInfo
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- CN101743889B CN101743889B CN2010101018536A CN201010101853A CN101743889B CN 101743889 B CN101743889 B CN 101743889B CN 2010101018536 A CN2010101018536 A CN 2010101018536A CN 201010101853 A CN201010101853 A CN 201010101853A CN 101743889 B CN101743889 B CN 101743889B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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Abstract
The present invention relates to a low position sprinkling irrigation method for cotton planted in southern areas, belonging to the field of crop cultivation. The low position sprinkling irrigation method for cotton planted in southern areas comprises the following steps:1) paving a pipe network, all polyvinyl chloride (PVC) pipes are perpendicular to cotton rows, the PVC pipes are horizontally connected by tee joints, one end of each of the tee joints is connected with a hose, water spray holes are previously arranged on both the upper and the lower planes of the hose, primary switches are arranged at the water inlets of all rows of PVC pipes, secondary switches are arranged at the connecting part of all hoses with the PVC pipes, and the hoses are arranged between every two cotton ridges in parallel with the cotton rows; 2) irrigating, 5 to 7 secondary switches are first opened, and then, the primary switches are opened. Irrigation water and labours are reduced, and irrigation efficiency and quality are improved. The method provides technical base for the safe and effective southern planting.
Description
Technical field
The present invention relates to the crop genetics field, particularly, the present invention relates to southern numerous cotton low level sprinkling irrigation method.
Background technology
Cotton numerous main body period of south is dry season, irrigates and is not only the basic guarantee that cotton growth is grown, and also is the main means of regulation and control breeding time.The conventional irrigation method of the numerous cotton in south irrigates through furrow or flood irrigation often, waste water resource not only, and also because irrigation quantity is difficult to control, it is inhomogeneous to pour water, and causes cotton growth to grow prosperous or wretched insufficiency, irregular between the individuality.Paddy rice is the first crop of Hainan agricultural production; Receive government and peasant's great attention; The paddy rice plantation often is in the good location of water conservancy condition; And the non-Hainan of cotton local agricultural production crop, the plantation majority of cotton in Hainan Island is distributed in relatively poor and far away apart from the water source location of water conservancy condition, and southern numerous cotton needs water often to have the situation that supply falls short of demand with supplying water.Crop irrigation water source, Hainan Island is main with surface water, comprises that reservoir and river, part take underground water intaking.Though the Hainan Island annual rainfall is very big, fresh water lacks generally because water-holding capacity is not enough.
Belong to the April of October to the next year in cotton south numerous season and being almost by the end of March no rain day or rainy immeasurable in dry season, particularly late November to what southern numerous cotton harvesting finished.Numerous zone, cotton south belongs to high level irrigation farming during this time, and under the unwarrantable situation of irrigation conditions, southern numerous cotton at all can't normal growth.Cotton south numerous season is cotton before flowering stage and blow-of-cottons after the initial stage particularly; Temperature, ground temperature are all very high; Noon, surface temperature reached about 50 degree; The soil in Hainan amount of cure is low in addition, water retention property is poor, and soil water evaporation speed is fast, evaporation discharge is big, and cotton is big and urgent to the demand of water around here.Cotton generally needed irrigate once in 3 days before flowering stage, needs between the numerous cotton development stage in whole south to irrigate 15～20 times more than, and be 3～5 times of cotton field, cotton region, continent irrigation frequency.Irrigation frequency is many and Nan Fan cotton field soil structure is hard and the general planarization in cotton field is poor, has increased labour intensity to irrigation operation, makes to irrigate the cost raising.In addition; The labor service recruitment of land for growing field crops, Hainan is 2～3 times of cotton field, continent labor service recruitment price; Take general irrigation method (canal irrigation) recruitment more; Also be the key factor that southern numerous cost increases severely, occur sometimes because rare the causing of labour irrigated the untimely phenomenon generation that southern numerous cotton growth is obstructed that causes.
Summary of the invention
In order to address the above problem, propose and accomplished the present invention.
The purpose of this invention is to provide southern numerous cotton low level sprinkling irrigation method.
South according to the present invention numerous cotton low level sprinkling irrigation method may further comprise the steps:
1) lays pipe network
At ridging; Overlay film finishes; Before the punching sowing; Lay PVC and prop up pipe network; Every row PVC arm trend is vertical with cotton row; The PVC arm is formed by connecting by the threeway level each section pvc pipe successively; The right thick head of the thin head in a threeway diameter specifications left side takes the mode of interpolation overcoat to be connected closely respectively with the 75mm arm; One end of threeway connects flexible pipe; Wherein, Said flexible pipe all has prefabricated hole for water spraying in two planes up and down; Set up the one-level switch at each row's PVC arm water inlet, every flexible pipe is established secondary switch with PVC arm junction, and it is central that flexible pipe is placed in two cotton ridges; And it is parallel with the cotton row;
When 2) irrigating, at first open 5～7 secondary switch (other secondary switch are closed), open the one-level switch then; Water spray highly is controlled at 0.3～0.5m; Open and close quantity regulating water spray height through the increase and decrease secondary switch, water spray falls into or the footpath flows into kind of a cave, and planting hole (cotton plant root) surrounding soil is loose; It is very fast to absorb water, and can accomplish this band cotton and irrigate task in general per 7～10 minutes.
According to low position irrigation method for cotton planted in southern areas of the present invention, wherein, each spacing of arranging between the PVC arm is 30～70 meters.
According to low position irrigation method for cotton planted in southern areas of the present invention, wherein, the diameter of said pvc pipe is 75mm.
According to low position irrigation method for cotton planted in southern areas of the present invention, wherein, the diameter of said flexible pipe is 30mm.
According to low position irrigation method for cotton planted in southern areas of the present invention, wherein, the diameter of the hole for water spraying on the flexible pipe is 0.1mm, and hole for water spraying is at a distance of 0.5～0.8m.
Method of the present invention has the following advantages:
1, saves irrigation water: take the low level irrigation method to irrigate 1 mu of cotton field water consumption 11.3～15.6M
3(once), take conventional open channel to irrigate 1 mu of cotton field water consumption 42.2～51.7M
3(once), efficiency of water application improves more than 3.5 times.
2, save the labour: take the low level irrigation technique; 1 worker (labour worked 8 hours) can irrigate acreage under cotton more than 25 mu; Take conventional open channel to irrigate 3 workers (three labours worked 8 hours) and irrigate 7 mu of acreage under cotton less thaies, save 10.7 times of labours.
3, improve irrigation speed: same water pump, take the low level irrigation technique to irrigate 3.37 mu in 1 hour, take canal irrigation to irrigate 0.83 mu in 1 hour, the unit interval operating efficiency improves about 4.1 times.
4, improve irrigation quality: irrigated back 4 days, the determining soil moisture result of the cotton plant base portion degree of depth 15～20cm shows that the relative moisture of the soil of low level irrigation technique is higher than canal irrigation 12.75%.
5, because watering the water yield becomes controlledly fully, regulate and control growing of southern numerous cotton effectively, also just controlled the breeding time of cotton, be the numerous technical foundation of having established in safe and effective south.
Description of drawings
Fig. 1 shows the sprinkling irrigation field that pipe network is laid, sowing finishes.
Embodiment
Embodiment 1
1, pipe (band) net is laid the stage
Ridging, overlay film finish; Before the punching sowing; Adopt the PVC arm of 75mm to connect the water source, the pvc pipe trend is gone vertically with cotton, and parallel distance is generally 30～70 meters and all can between the adjacent PVC arm; Based on hydraulic pressure, landform, the long adjustment flexibly of plot cotton row, the distance big like hydraulic pressure strengthens, the long suitable increasing of plot cotton row.Pvc pipe segmentation threeway connects, and the right thick head of the thin head in a threeway diameter specifications left side is connected closely another pass joint diameter 30mm flexible hose with the 75mm arm.Flexible hose up and down two planes all has the hole for water spraying of prefabricated diameter 0.1mm, 3～5 hole for water sprayings of every row, and every row's hole for water spraying is generally 0.5～0.8m apart, and different suppliers hole for water spraying density there are differences.Adhesive tape is put at two central and cotton row in cotton ridge parallel, and 3～5 meters a little weak soil suppressions at interval, prevents wind break-in (as shown in Figure 1).
2, irrigate the operational phase
Need arrange PVC at each in advance and irrigate the arm water inlet and set up an one-level switch, every sebific duct is established a secondary switch with PVC arm junction, when needing irrigation; First-selection is opened 5～7 secondary switch; Open the one-level switch then, water spray highly is controlled at 0.3～0.5m, opens and closes quantity regulating water spray height through the increase and decrease secondary switch; Water spray falls into or runoff kind cave, can accomplish the irrigation of this band cotton and need water in general per 7～10 minutes.Behind completion one band, the first-selected secondary switch that need irrigate in addition of opening is closed then and is accomplished the secondary switch of irrigating, and the like.
3, pipe (band) net is torn the stage of depositing (recycling) open
The arm that one cover pipe network is kept can be used more than 10 years, and sebific duct also can use more than 4 years.For improving the pipe network service efficiency; Southern numerous cotton harvesting to annual finishes (roughly about April 10); Number in PVC arm and sebific duct branch plot, and sebific duct ties along the horizontal plane rolling-in and with straw rope and neatly is placed in the warehouse, and the plague of rats, the control of snake evil are noted in the warehouse; The parallel suitable end shallow embedding that is displaced to this plot of PVC arm, the degree of depth 20～30cm treats down easily can dig out before the southern numerous cotton of stubble is broadcast fully.Prolong PVC and prop up tube lifetime.In order to continuing (plot is fixed, the numbers fixing) use of checking the number the coming year, reduce low level sprinkler irrigation technique cost.
Claims (5)
1. southern numerous cotton low level sprinkling irrigation method is characterized in that, said method comprising the steps of:
1) lays pipe network
Finish at ridging, overlay film; Before the punching sowing; Lay PVC and prop up pipe network; Every row PVC arm trend is vertical with cotton row; The PVC arm is formed by connecting by the threeway level each section pvc pipe successively; The two ends of threeway are connected with pvc pipe respectively; A remaining end connects flexible pipe; Wherein, Said flexible pipe all has prefabricated hole for water spraying in two planes up and down; Set up the one-level switch at each row's PVC arm water inlet, every flexible pipe is established secondary switch with PVC arm junction, and flexible pipe is placed in two cotton ridges central authorities and capable parallel with cotton;
When 2) irrigating, at first open 5～7 secondary switch, open the one-level switch then, water spray highly is controlled at 0.3～0.5m, and water spray falls into or the footpath flows into kind of a cave.
2. south according to claim 1 numerous cotton low level sprinkling irrigation method is characterized in that, each spacing of arranging between the PVC arm is 30～70 meters.
3. south according to claim 1 numerous cotton low level sprinkling irrigation method is characterized in that the diameter of said pvc pipe is 75mm.
4. south according to claim 1 numerous cotton low level sprinkling irrigation method is characterized in that the diameter of said flexible pipe is 30mm.
5. south according to claim 1 numerous cotton low level sprinkling irrigation method is characterized in that the diameter of the hole for water spraying on the flexible pipe is 0.1mm, and hole for water spraying is at a distance of 0.5～0.8m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101018536A CN101743889B (en) | 2010-01-28 | 2010-01-28 | Low position irrigation method for cotton planted in southern areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101018536A CN101743889B (en) | 2010-01-28 | 2010-01-28 | Low position irrigation method for cotton planted in southern areas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101743889A CN101743889A (en) | 2010-06-23 |
| CN101743889B true CN101743889B (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101018536A Expired - Fee Related CN101743889B (en) | 2010-01-28 | 2010-01-28 | Low position irrigation method for cotton planted in southern areas |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109006313B (en) * | 2018-07-31 | 2021-03-05 | 中国农业科学院棉花研究所 | Method for producing seeds of cotton 20 ten thousand times a year |
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- 2010-01-28 CN CN2010101018536A patent/CN101743889B/en not_active Expired - Fee Related
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Granted publication date: 20120606 Termination date: 20140128 |