CN207604313U - A kind of direct insertion underground drip irrigation irrigation system of suspension - Google Patents
A kind of direct insertion underground drip irrigation irrigation system of suspension Download PDFInfo
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- CN207604313U CN207604313U CN201721103518.3U CN201721103518U CN207604313U CN 207604313 U CN207604313 U CN 207604313U CN 201721103518 U CN201721103518 U CN 201721103518U CN 207604313 U CN207604313 U CN 207604313U
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- drip irrigation
- direct insertion
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- pipe
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/40—Afforestation or reforestation
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Abstract
A kind of direct insertion underground drip irrigation irrigation system of suspension, it is made of supply equipment, steel wire, fixing card, drip irrigation pipe, turbulator, direct insertion underground drip irrigation water dropper, adjustable spud pile, the utility model is vacantly to be set up underground drip irrigation hollow billet, on the one hand, facilitate mechanical farm work and effectively avoid damage of the field management to hollow billet；On the other hand, douche buried depth can be freely adjusted according to the crop root depth or different growing, meet plant growth law of needing the water, inducible root system is developed, improves Crop Water Use Efficiency and is reduced echard to deep layer and scatters and disappears, in addition, this irrigation system also has many advantages, such as service life length, simple to install, easy to operate, can be widely applied to the fields such as cultivation of fruit tree, afforestation, afforestation, also provides a kind of novel irrigation system for water-saving irrigation.
Description
Technical field
The utility model is related to water-saving irrigation fields, more particularly to a kind of direct insertion underground drip irrigation irrigation system of suspension,
Suitable for fields such as the cultivations of fruit tree, afforestation, afforestation of planting spacing >=20cm.
Technical background
Under the objective reality of arid and semi-arid area of China shortage of water resources, it is to alleviate agricultural to improve irrigation water utilization efficiency
One of important channel of the contradiction of supply and demand for the water resource.Selection is a kind of, and with saving, fertilizer is water-saving, save labor, increase production efficiently and cost is closed
The underground drip irrigation mode for managing, facilitating management is the key problem for solving this new technique of underground drip irrigation and being promoted in Field information.
Traditional surface irrigation is the water-saving irrigation technique being most widely used at present.However, traditional earth's surface drip irrigation pipe network is usually laid
In earth's surface, it is not easy to do mechanization operation, later stage field management easily damages pipeline, and service life is short, is used for a long time easy
Cause soil patch salination.Underground drip irrigation is a kind of novel water-saving irrigation technique.It can be by buried douche by liquid manure
Under lower pressure, it is accurately supplied to the soil horizon of certain depth, to realize that the more layer of soil is irrigated.Compared with drip surface,
With water-saving fertilizer-saving space bigger, inhibits weed growth, reduces pest and disease damage incidence to a certain extent and promote root system deep layer hair
The advantages that educating.Currently, general underground drip irrigation technique mainly uses dedicated droping irrigating pipe（Patch type drip irrigation tape etc.）It is embedded in ground
Lower realization, although having embodied the advantage of underground drip irrigation, due to its input cost height, complex management, difficulty of construction height, underground
Pipe network overhauls difficulty disadvantage, limits large scale application.To overcome the disadvantages described above of underground drip irrigation, bigger effect
The advantage of underground drip irrigation is played, the utility model has developed a kind of direct insertion underground drip irrigation irrigation system of suspension.
Utility model content
The utility model is related to water-saving irrigation fields, more particularly to a kind of direct insertion underground drip irrigation irrigation system of suspension,
Suitable for fields such as the cultivations of fruit tree, afforestation, afforestation of planting spacing >=20cm.
The purpose of this utility model is achieved through the following technical solutions：
A kind of direct insertion underground drip irrigation irrigation system of suspension, is by supply equipment, feed pipe, 2 adjustable spud piles, steel
Silk, drip irrigation pipe, turbulator, direct insertion underground drip irrigation water dropper, fixing card, crop composition, adjustable spud pile are propped up by activity
Column, adjusting screw, fixed pillar, pedestal fixed frame composition, portable stanchion are socketed with fixed pillar；Fixed pillar, which is equipped with, adjusts spiral shell
Silk；Fixation with steel wire is between 2 portable stanchions；Steel wire fixes drip irrigation pipe by fixing card；The supply equipment passes through confession
Water pipe is connect with drip irrigation pipe；The drip irrigation pipe is equipped with turbulator；The turbulator connects direct insertion underground drip irrigation drop
Head.
The spacing of above-mentioned two neighboring adjustable spud pile is 5~10m, depth of burying ＞ 60cm.
The height of above-mentioned portable stanchion can be adjusted by adjusting screw, and realization drip irrigation pipe can with ground interplanar distance
Control, adjustable distance are 0~40cm.
Water or liquid manure mixed liquor needed for its growth and development are provided for crop when above-mentioned supply equipment operation, and passes through confession
Water pipe is delivered to drip irrigation pipe.
Above-mentioned portable stanchion, fixed pillar are made of hollow square tube.
Above-mentioned portable stanchion facilitates fixation with steel wire at 10~15cm of top there are indent, indent depth be 2mm~
4mm, steel wire winding are fixed in the indent of portable stanchion upper end.
Above-mentioned portable stanchion from the indent of upper end indicate scale, which can reflect steel wire and drip irrigation pipe distance
The vertical range of earth's surface.
Above-mentioned portable stanchion size is less than fixed pillar, and the two wears connection.
Headed self-tapping self-drilling screw can be selected in above-mentioned adjusting screw, and the use number of adjusting screw can be adjusted according to actual conditions
It measures, adjusting screw quantity >=1 on every fixed pillar.
Above-mentioned pedestal fixed frame is made of two square steel, is in first " X " type cross weld, then is welded with fixed pillar bottom end
And it is embedded to 60~80cm of underground, it is therefore an objective to ensure that fixing pillar when operation is not subjected to displacement and deflects.
The fixed pillar of above-mentioned 2 can be adjusted suitably according to practical long-term cropping, and it is 5~10m to bury spacing.
Above-mentioned fixing card is plastic material and has certain elasticity, and small lower big opening is in " S " type in shape, upper and lower
Internal diameter is respectively slightly less than the outer diameter of steel wire and drip irrigation pipe, when operation require drip irrigation pipe to be fixed with steel wire after can not be free
Rotation prevents from damaging direct insertion underground drip irrigation douche because drip irrigation pipe twists.
Clipping room between above-mentioned fixing card is away from≤1m, and drip irrigation pipe does not occur sagging when ensuring operation.
Above-mentioned direct insertion underground drip irrigation water dropper is rigid plastics material, it is desirable that it is inserted into soil when operation and does not bend,
Water dropper end facilitates insertion soil, water outlet micropore to be distributed in 5~10cm of water dropper end when being coniform operation.
It is inserted near crop main root when above-mentioned direct insertion underground drip irrigation water dropper operation, apart from 10~15cm of main root, foundation
Practical crop root development degree increases or decreases water dropper quantity, quantity >=1.
Difference and advantage of the utility model with existing trickle irrigation, significant, prominent feature are as follows：
1, traditional drip surface pipe network is usually laid in earth's surface, is not easy to do mechanization operation, and later stage field management is easily right
Pipeline damages, and service life is short；Adjustable spud pile can hang drip irrigation pipe in the utility model, be conducive to carry out
Mechanization field management improves production efficiency.
2, the irrigations such as conventional suspension type sprinkling irrigation, trickle irrigation can not accurately control flow, the objective factors such as easy wind-engaging, dripping end flow
Influence pour water deflection, unevenness of pouring water the problems such as；Direct insertion underground drip irrigation water dropper, can mix water or liquid manure in the utility model
It closes liquid and directly imports crop root layer from drip irrigation pipe, realize that the spring layer of soil is irrigated, to solve suspension type sprinkling irrigation, trickle irrigation at all
The problems such as deflection, unevenness of pouring water of pouring water.
3, drip irrigation is routinely descended often disposably to be embedded in pipeline in soil horizon, root system is shallower when crop seedling,
With plant growth, root system is gradually developed to deep layer, and drip irrigation zone can not carry out buried depth change with crop root growth, has one
Fixed limitation；Adjustable spud pile can change direct insertion underground according to the growth and development situation of crop root in the utility model
The depth of burying of drip irrigation emitter, applicability are more extensive.
4, it traditionally descends droping irrigating pipe to be located in deep soil layer, is not easy to overhaul after situations such as when operation occurs to block, leak, and
Piping foundation is complicated, takes time and effort, cost is higher；Direct insertion underground drip irrigation water dropper is that independent tubes are inserted into soil in the utility model
Layer, extracting soil layer can overhaul, and water dropper is only needed to change when blocking, easy to operate and of low cost, with more first
Into property.
The advantages of the utility model and advantageous effect：
1, the direct insertion underground drip irrigation system of the utility model is irrigated by the more layer of soil, is reduced to the maximum extent
Between surface moisture evaporation loss, water-saving about 30~40% compared with traditional earth's surface drip irrigation system, section fertilizer about 10~15%, not only improve
The water use efficiency of crop and there is good desalinization of soil by flooding or leaching effect to root region soil, good growth is created for crop root zone
Microenvironment.
2, the direct insertion underground drip irrigation system of the utility model, will by directly feeding and crop root zone liquid manure mixed liquor
Effective induction root of the crop is absorbed to deep layer development, raising root activity and largely and has efficiently been established using fertilizer good for plant
Good basis, and then effectively raise the liquid manure utilization ratio of plant.
3, the suspension of the utility model can avoid trickle irrigation of the normal surface drip irrigation system caused by farm work
The problems such as band damage, the also avoidable conventional suspension type drip irrigation and spray irrigation deflection of pouring water being also easy to produce, unevenness of pouring water.
4, the direct insertion underground drip irrigation water dropper maintenance of the utility model is easy, simple in structure, easy to operate, and comparison is traditionally
The inbuilt drip irrigation zone of lower trickle irrigation institute, easy to aging, maintenance which overcome the underground pipings generally occurred when traditional underground drip irrigation use
The problems such as difficult, laying technical sophistication.
5, the direct insertion underground drip irrigation system of a kind of suspension of the utility model, the depth that can be directed to crop root freely adjust
The depth of burying of underground drip irrigation douche, more extensive than traditional underground drip irrigation technique applicability, practicability is stronger.
6, a kind of its cost of the traditional underground drip irrigation system of suspension of the utility model direct insertion underground drip irrigation system comparison is more
Low, pipeline is non-aging, and the laying of specification is convenient for mechanization field work, greatly improves production efficiency, reduces
Production cost, service life is long, accurately can carry out underground drip irrigation and water-fertilizer integral management and not to fruit forest zones crop
The operation of field work and mechanization equipment is influenced, comparing traditional underground drip irrigation has stronger application value.
7, suspension type irrigation technique is combined by the utility model with novel direct insertion underground drip irrigation technique, and it is convenient to have
The advantages of mechanical farm work increases hollow billet service life, reduces field management cost；In addition, underground drip irrigation douche buried depth
It can freely be adjusted according to the crop root depth or different growing, meet plant growth law of needing the water, induction root system is sent out to deep layer
It educates, and raising efficiency of water application and echard scatter and disappear.This irrigation system simple to install, it is easy to operate, it can be widely applied to
The fields such as cultivation of fruit tree, afforestation, afforestation.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic diagram of adjustable spud pile in Fig. 1.
In figure：1- supply equipments；2- feed pipes；The adjustable spud piles of 3-；4- steel wires；5- drip irrigation pipes；6- turbulators；7-
Direct insertion underground drip irrigation water dropper；8- fixing cards；9- crops；10- portable stanchions；11- adjusting screws；12- fixes pillar；The bottoms 13-
Seat fixed frame.
Specific implementation mode
Below in conjunction with the accompanying drawings by taking matrimony vine as an example, the utility model is described in further details.
As shown in Figure 1, a kind of direct insertion underground drip irrigation irrigation system of suspension, being can by supply equipment 1, feed pipe 2,2
Mode spud pile 3, steel wire 4, drip irrigation pipe 5, turbulator 6, direct insertion underground drip irrigation water dropper 7, fixing card 8, crop 9 form,
It is characterized in that：The adjustable spud pile 3 is by portable stanchion 10, adjusting screw 11, fixed pillar 12, pedestal fixed frame 13
Composition, portable stanchion 10 are socketed with fixed pillar 12；Fixed pillar 12 is equipped with adjusting screw 11；The steel wire 4 is fixed on 2
Between portable stanchion 10；Steel wire 4 fixes drip irrigation pipe 5 by fixing card 8；The supply equipment 1 passes through feed pipe 2 and trickle irrigation
Hollow billet 5 connects；The drip irrigation pipe 5 is equipped with turbulator 6；The turbulator 6 connects direct insertion underground drip irrigation water dropper 7.
The spacing of two neighboring adjustable spud pile 3 is 5~10m, depth of burying ＞ 60cm.
The height of portable stanchion 10 can be adjusted by adjusting screw 11, and realization drip irrigation pipe 5 can with ground interplanar distance
Control, adjustable distance are 0~40cm.
Water or liquid manure mixed liquor needed for its growth and development are provided for crop 9 when 1 operation of supply equipment, and passes through feed pipe
2 are delivered to drip irrigation pipe 5.
Portable stanchion 10, fixed pillar 12 are made of hollow square tube.
There are indents, and steel wire 4 to be facilitated to fix at 10~15cm of top for portable stanchion 10, and indent depth is 2mm~4mm,
Steel wire 4 is fastened in the indent of 10 upper end of portable stanchion.
Portable stanchion 10 from the indent of upper end indicate scale, which can reflect steel wire 4 and drip irrigation pipe 5 apart from ground
The vertical range of table.
10 size of portable stanchion is less than fixed pillar 12, and the two wears connection.
Headed self-tapping self-drilling screw can be selected in adjusting screw 11, and the usage quantity of adjusting screw 11 can be adjusted according to actual conditions,
11 quantity >=1 of adjusting screw on every fixed pillar 12.
Pedestal fixed frame 13 is made of two square steel, is in first " X " type cross weld, then simultaneously with the welding of 12 bottom end of fixed pillar
It is embedded to 60~80cm of underground, it is therefore an objective to ensure that fixing pillar when operation is not subjected to displacement and deflects.
2 fixed pillars 12 can be adjusted suitably according to practical long-term cropping, and it is 5~10m to bury spacing.
Fixing card 8 is plastic material and has certain elasticity, and small lower big opening is in " S " type in shape, and upper and lower internal diameter is equal
Be slightly less than the outer diameter of steel wire 4 and drip irrigation pipe 5 respectively, when operation require drip irrigation pipe 5 to be fixed with steel wire 4 after can not freely turn
It is dynamic, it prevents from damaging direct insertion underground drip irrigation douche 7 because drip irrigation pipe 5 twists.
Clipping room between fixing card 8 is away from≤1m, and drip irrigation pipe 5 does not occur sagging when ensuring operation.
Direct insertion underground drip irrigation water dropper 7 is rigid plastics material, it is desirable that it is inserted into soil when operation and does not bend, water dropper end
End facilitates insertion soil, water outlet micropore to be distributed in 5~10cm of water dropper end when being coniform operation.
It inserts near crop main root when direct insertion 7 operation of underground drip irrigation water dropper, apart from 10~15cm of main root, makees according to practical
Object well developed root system degree increases or decreases water dropper quantity, quantity >=1.
Embodiment
It is 1 year raw seedling that crop 9, which selects matrimony vine, matrimony vine nursery stock, and according to 3 meters of line-spacing, 1 meter of spacing in the rows is colonized；
Water-fertilizer integral equipment is the stable liquid manure mixed liquor of direct insertion drip irrigation system supply；
Portable stanchion 10, specification are 15cm × 15cm × 100cm（Length × width × height）, have pressure at the 15cm of portable stanchion upper end
Slot, indent depth 3mm；
Steel wire 4, specification are outer diameter 2.3mm（11#）, when operation is fixed at the 10cm indents of portable stanchion upper end；
Fixed pillar 12, specification are 20cm × 20cm × 100cm（Length × width × height）, portable stanchion 10 is inserted into fixed branch
In column 12,50cm is exposed in upper end, is fixed in fixed pillar 12 using 2 adjusting screws 11；
13 section specification of pedestal fixed frame be 3cm × 3cm, length 30cm, first intersect in " X " type weld, then with fixation
12 bottom end of pillar welds and is embedded to underground with fixed pillar, and buried depth is 60cm；
8 upper inner diameter 2mm of fixing card, lower inner diameter 14mm, laying spacing is 50cm；
5 specification of drip irrigation pipe is internal diameter 16mm, is tightly fastened by fixing card 8 and drip irrigation pipe 5, apart from ground when operation
Height is 100cm；
6 specification of turbulator is 4L/h；
Direct insertion 7 internal diameter of underground drip irrigation water dropper is 5mm, outer diameter 6mm, long 80cm, and water outlet is distributed in water dropper bottom end 5cm
Place, water dropper are laid in matrimony vine plant both sides, and every plant of matrimony vine lays 2, and burial place is initial embedded deep apart from matrimony vine trunk 10cm
Degree is 10cm, and as matrimony vine seedling is grown, second year adjusts buried depth 15cm, is adjusted to 20cm in third year.
The present embodiment is only the explanation to the utility model, technical staff can be helped to fully understand utility model side
Case, those skilled in the art can make not no creative contribution to the present embodiment as needed after reading this specification
Modification, as long as but all being protected by Patent Law in the right of the utility model.
Claims (2)
1. a kind of direct insertion underground drip irrigation irrigation system of suspension, is by supply equipment（1）, feed pipe（2）, 2 adjustable fixations
Stake（3）, steel wire（4）, drip irrigation pipe（5）, turbulator（6）, direct insertion underground drip irrigation water dropper（7）, fixing card（8）, crop（9）Group
At, it is characterised in that：The adjustable spud pile（3）It is by portable stanchion（10）, adjusting screw（11）, fixed pillar
（12）, pedestal fixed frame（13）Composition；The portable stanchion（10）With fixed pillar（12）Socket；Portable stanchion（10）Height
Degree can pass through adjusting screw（11）It is adjusted, realizes drip irrigation pipe（5）It is controllable with ground interplanar distance, adjustable distance is 0~
40cm；Fixed pillar（12）Equipped with adjusting screw（11）；The steel wire（4）It is fixed on 2 portable stanchions（10）Between；Steel wire
（4）Pass through fixing card（8）Fixed drip irrigation pipe（5）；Fixing card（8）For plastic material and with certain elasticity, under small in shape
Big opening is in " S " type, and upper and lower internal diameter is respectively slightly less than steel wire（4）With drip irrigation pipe（5）Outer diameter, drop is required when operation
Fill hollow billet（5）With steel wire（4）It is not free to rotate after being fixed, it prevents because of drip irrigation pipe（5）Damage twist direct insertionly
Lower drip irrigation emitter（7）, fixing card（8）Between clipping room away from≤1m, drip irrigation pipe when ensuring operation（5）Under not occurring
It hangs down；The supply equipment（1）Pass through feed pipe（2）With drip irrigation pipe（5）Connection；The drip irrigation pipe（5）Equipped with turbulent flow
Device（6）；The turbulator（6）Connect direct insertion underground drip irrigation water dropper（7）.
2. a kind of direct insertion underground drip irrigation irrigation system of suspension as described in claim 1, it is characterised in that：It is two neighboring adjustable
Formula spud pile（3）Spacing be 5~10m, depth of burying ＞ 60cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721103518.3U CN207604313U (en) | 2017-08-31 | 2017-08-31 | A kind of direct insertion underground drip irrigation irrigation system of suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721103518.3U CN207604313U (en) | 2017-08-31 | 2017-08-31 | A kind of direct insertion underground drip irrigation irrigation system of suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207604313U true CN207604313U (en) | 2018-07-13 |
Family
ID=62793063
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721103518.3U Expired - Fee Related CN207604313U (en) | 2017-08-31 | 2017-08-31 | A kind of direct insertion underground drip irrigation irrigation system of suspension |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108283134A (en) * | 2017-08-31 | 2018-07-17 | 中国科学院寒区旱区环境与工程研究所 | A kind of direct insertion underground drip irrigation irrigation system of suspension |
| CN111296238A (en) * | 2020-04-17 | 2020-06-19 | 周彦博 | Drip irrigation structure in drip irrigation system |
| CN113057086A (en) * | 2019-05-10 | 2021-07-02 | 江苏师范大学 | Drip irrigation device convenient to dismantle |
| CN113080019A (en) * | 2021-04-29 | 2021-07-09 | 王清 | Water-saving farmland irrigation system capable of preventing straw crops from toppling over |
| CN113179917A (en) * | 2021-04-29 | 2021-07-30 | 王清 | Water-saving farmland irrigation method for preventing straw crops from toppling |
-
2017
- 2017-08-31 CN CN201721103518.3U patent/CN207604313U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108283134A (en) * | 2017-08-31 | 2018-07-17 | 中国科学院寒区旱区环境与工程研究所 | A kind of direct insertion underground drip irrigation irrigation system of suspension |
| CN113057086A (en) * | 2019-05-10 | 2021-07-02 | 江苏师范大学 | Drip irrigation device convenient to dismantle |
| CN111296238A (en) * | 2020-04-17 | 2020-06-19 | 周彦博 | Drip irrigation structure in drip irrigation system |
| CN113080019A (en) * | 2021-04-29 | 2021-07-09 | 王清 | Water-saving farmland irrigation system capable of preventing straw crops from toppling over |
| CN113179917A (en) * | 2021-04-29 | 2021-07-30 | 王清 | Water-saving farmland irrigation method for preventing straw crops from toppling |
| CN113080019B (en) * | 2021-04-29 | 2023-11-10 | 王清 | Water-saving farmland irrigation method for preventing straw crops from toppling |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190920 Address after: 755100 East Building of Zhongwei Office, Ningxia Entry-Exit Inspection and Quarantine Bureau, Fukang East Road, Zhongning County, Ningxia Hui Autonomous Region Patentee after: Xizan Manor Wolfberry Co.,Ltd. Address before: 730000 Gansu city of Lanzhou province Donggang West Road No. 320 Patentee before: COLD AND ARID REGIONS ENVIRONMENTAL AND ENGINEERING Research Institute,CHINESE ACADEMY OF SCIENCES |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |