CN104396417A - Big field micro-irrigation distributed type precise fertilizer-applying pesticide-applying device - Google Patents
Big field micro-irrigation distributed type precise fertilizer-applying pesticide-applying device Download PDFInfo
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- CN104396417A CN104396417A CN201410558859.4A CN201410558859A CN104396417A CN 104396417 A CN104396417 A CN 104396417A CN 201410558859 A CN201410558859 A CN 201410558859A CN 104396417 A CN104396417 A CN 104396417A
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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
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
A big field micro-irrigation distributed type precise fertilizer-applying pesticide-applying device is additionally provided with fertilizer-injection pesticide-injection systems and a fertilizer-supplying pesticide-supplying pipeline; an irrigation valve is additionally arranged on each branched water delivery pipe; a fertilizer-supplying pesticide-supplying system is communicated with a head system; the fertilizer-supplying pesticide-supplying pipeline comprises a total fertilizer-delivery pesticide-delivery pipe communicated with the fertilizer-supplying pesticide-supplying system, and branched fertilizer-delivery pesticide-delivery pipes communicated with the total fertilizer-delivery pesticide-delivery pipe; one end of each fertilizer-injection pesticide-injection system is communicated with the branched fertilizer-delivery pesticide-delivery pipe, and the other end of each fertilizer-injection pesticide-injection system is communicated with an inlet of each irrigation valve. With adopting of the mode of separate delivery of water, a fertilizer liquid and a pesticide liquid, the corresponding irrigation valves are opened according to the actual needs in the field irrigation, the fertilizer-injection pesticide-injection systems can inject the fertilizer liquid and the pesticide liquid together with water into the branched water delivery pipes, allows the fertilizer liquid, the drug liquid and water to be mixed into a whole and then be irrigated into a field, the practicability is strong, the cost is low, installation and operation are simple, and the problem of uneven fertilizer application of large-area farmland is effectively solved.
Description
Technical field
The invention belongs to agricultural water-saving irrigation technical field, relate to the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation.
Background technology
It is an important feature of slight irrigation that water-fertilizer integral fertilizer irrigation dispenser integrated with water medicine is irrigated, for the dispenser of large area farmland fertilization, from modern agricultural production angle, generally adopt to concentrate fertilising dispenser, namely from irrigation system stem, fertilizer and pestsides synthesis are entered irrigation water, along with irrigation pipe network is delivered to field.In actual production, peasant household, in order to reduce irrigation system cost, at rotation flow time-division free combat valve opening door, reduces pipe network caliber by dispersion flow and then reduces system cost.In the total water-supply-pipe of general irrigation system, flow rate of water flow is at below 2m/s.For hundreds of mu or thousands of mu, mu up to ten thousand and the elongated farmland of landform, the stem system of irrigation system reaches several kilometers to total water-supply-pipe of farmland end, because in total water-supply-pipe, the flow velocity of current is less, after irrigation system starts, start to apply fertilizer, medicine from the farmland close to stem system, and after more than ten minutes or several tens minutes, fertile, medicine could be delivered to point water-supply-pipe place of far-end by total water-supply-pipe.Although the note at stem system place fertile medicine injector note is accurately fertile, total and yield poor results because slight irrigation water-supply-pipe has distance, cause the fertilising dispenser on field uneven.
Summary of the invention
The present invention is in order to overcome the defect of prior art, devise the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation, the pattern that employing water, solution liquid are carried separately, then when field irrigation, solution liquid injects in point water-supply-pipe with water together, pour into field after conglomerate integration, practical, cost is low, install simple to operate, efficiently solve the problem that the dispenser of large area farmland fertilization is uneven.
The concrete technical scheme that the present invention takes is: the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation, comprise stem system, fertilizer is for medicine system, hydraulic pipeline, the water inlet of stem system is communicated with water source, hydraulic pipeline comprises the total water-supply-pipe be communicated with stem system delivery port, point water-supply-pipe be communicated with total water-supply-pipe, key is: set up the fertile liquid medicine injection system of note, fertilizer medicine supplying pipe road, irrigation valve set up by point water-supply-pipe, fertilizer is for medicine system and stem system connectivity, fertilizer medicine supplying pipe road comprises and the total defeated fertile grug transportation tube of fertilizer for medicine system connectivity, point defeated fertile grug transportation tube be communicated with total defeated fertile grug transportation tube, the one end of noting fertile liquid medicine injection system is communicated with a point defeated fertile grug transportation tube, note the other end of fertile liquid medicine injection system and the inlet communication of irrigating valve.
Described stem system and fertilizer by pipeline connection, pipeline are provided with inlet valve for medicine system.
Described stem system comprises water pump, filter, the water inlet of water pump is communicated with water source, the delivery port of water pump is communicated with the water inlet of filter, and the delivery port of filter is communicated with total water-supply-pipe, and fertilizer is communicated with the delivery port of stem system middle filtrator for medicine system.
Described fertilizer comprises fertilizer tank, fertilizer pump, the import of fertilizer pump and the outlet of fertilizer tank for medicine system, and fertilizer delivery side of pump is communicated with total defeated fertile grug transportation tube, and fertilizer supplies import and the stem system connectivity of fertilizer tank in medicine system.
The fertile liquid medicine injection system of described note comprises the fertile medicine injector of note, and the import of noting fertile medicine injector is communicated with a point defeated fertile grug transportation tube, and note the outlet of fertile medicine injector and the inlet communication of irrigating valve, noting fertile medicine injector is that venturi notes fertile medicine injector or ratio notes fertile medicine injector.
The fertile liquid medicine injection system of described note comprises note fertile medicine injector, fertilizer medicament storage tank, the import of noting fertile medicine injector is communicated with a point defeated fertile grug transportation tube, note the outlet of fertile medicine injector and the inlet communication of fertilizer medicament storage tank, outlet and the inlet communication of irrigating valve of fertilizer medicament storage tank, noting fertile medicine injector is that the fertile medicine injector of differential note or elbow bypass type note fertile medicine injector.
Liquid level gauge is provided with in described fertilizer medicament storage tank.
Described irrigation valve is magnetic valve.
Described inlet valve is ball valve.
The invention has the beneficial effects as follows: set up the fertile liquid medicine injection system of note, fertilizer medicine supplying pipe road, irrigation valve set up by point water-supply-pipe, utilize the water delivery of stem system, the defeated fertile loading in fertilizer medicine supplying pipe road, adopt this water, pattern that solution liquid is carried separately, then open according to actual needs when field irrigation and irrigate valve accordingly, noting fertile liquid medicine injection system will inject in point water-supply-pipe with water by solution liquid together, field is poured into after conglomerate integration, practical, cost is low, installs simple to operate, efficiently solves the problem that the dispenser of large area farmland fertilization is uneven.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In accompanying drawing, 1 represents stem system, and 2 represent inlet valve, and 3 represent fertilizer for medicine system, and 4 represent total defeated fertile grug transportation tube, and 5 represent total water-supply-pipe, 6 representative point water-supply-pipes, the fertile liquid medicine injection system of 7 representative note, and valve is irrigated in 8 representatives, 9 representative point defeated fertile grug transportation tubes.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figure 1, the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation, comprise stem system 1, fertilizer is for medicine system 3, hydraulic pipeline, also comprise the fertile liquid medicine injection system 7 of note, fertilizer medicine supplying pipe road, stem system 1 comprises water pump, filter, fertilizer comprises fertilizer tank for medicine system 3, fertilizer pump, hydraulic pipeline comprises total water-supply-pipe 5, point water-supply-pipe 6 be communicated with total water-supply-pipe 5, divide on water-supply-pipe 6 and be provided with irrigation valve 8, be preferably magnetic valve, fertilizer medicine supplying pipe road comprises the total defeated fertile grug transportation tube 4 be communicated with for medicine system 3 with fertilizer, point defeated fertile grug transportation tube 9 be communicated with total defeated fertile grug transportation tube 4, the water inlet of water pump is communicated with water source, the delivery port of water pump is communicated with the water inlet of filter, the delivery port of filter is communicated with total water-supply-pipe 5, the import of fertilizer tank is communicated with the delivery port of filter by pipeline, pipeline is provided with inlet valve 2, be preferably ball valve, the outlet of fertilizer tank and the inlet communication of fertilizer pump, fertilizer delivery side of pump is communicated with total defeated fertile grug transportation tube 4, the one end of noting fertile liquid medicine injection system 7 is communicated with a point defeated fertile grug transportation tube 9, note the other end of fertile liquid medicine injection system 7 and the inlet communication of irrigating valve 8.When fertilizer carries out the preparation of fertile drug solns for medicine system 3, open inlet valve 2, the water in filter enters in fertilizer tank through pipeline, after fertile drug solns preparation, close inlet valve 2.
Note fertile liquid medicine injection system 7 and have two kinds of structures: one only includes the fertile medicine injector of note, the import of noting fertile medicine injector is communicated with a point defeated fertile grug transportation tube 9, note the outlet of fertile medicine injector and the inlet communication of irrigating valve 8, noting fertile medicine injector is that venturi notes fertile medicine injector or ratio notes fertile medicine injector; Another kind comprises note fertile medicine injector, fertilizer medicament storage tank, liquid level gauge is provided with in fertilizer medicament storage tank, the import of noting fertile medicine injector is communicated with a point defeated fertile grug transportation tube 9, note the outlet of fertile medicine injector and the inlet communication of fertilizer medicament storage tank, outlet and the inlet communication of irrigating valve 8 of fertilizer medicament storage tank, noting fertile medicine injector is that the fertile medicine injector of differential note or elbow bypass type note fertile medicine injector.
When being provided with fertilizer medicament storage tank in the fertile liquid medicine injection system 7 of note, two kinds of modes are had: one is adopt Liquid level mode when adding solution liquid to fertilizer medicament storage tank, namely prescribe a time limit to the lower of liquid level gauge when the liquid level in fertilizer medicament storage tank is low, liquid level gauge sends alarm signal, fertilizer starts for medicine system 3, in the fertilizer medicament storage tank in the fertile liquid medicine injection system 7 of note, fertilizer is carried, until reach the upper limit of liquid level gauge by total defeated fertile grug transportation tube 4; Two is after irrigation terminates, and people manually boots or automatically activates to open fertilizer for medicine system 3 by the program of setting, carries fertilizer, until reach the upper limit of liquid level gauge by total defeated fertile grug transportation tube 4 in the fertilizer medicament storage tank in the fertile liquid medicine injection system 7 of note.
Embodiment 1, when all farmlands all need to irrigate and note fertile medicine injector be venturi note fertile medicine injector or ratio note fertile medicine injector time, start stem system 1, first open from the irrigation valve 8 corresponding to the nearest first piece of farmland of stem system 1, the water at water source place enters point water-supply-pipe 6 through total water-supply-pipe 5 under the effect of stem system 1, fertilizer enters a point defeated fertile grug transportation tube 9 for the solution liquid in medicine system 3 through total defeated fertile grug transportation tube 4 simultaneously, then enter point water-supply-pipe 6 through the fertile liquid medicine injection system 7 of note, after mixing with the water in point water-supply-pipe 6, enter field.After first piece of farmland meets irrigation demand, close the irrigation valve 8 corresponding to first piece of farmland, then the irrigation valve 8 corresponding to second piece of farmland is opened, the like, until all farmlands have all been irrigated, adopt this water, the pattern that solution liquid is carried separately, then corresponding irrigation valve 8 is opened according to actual needs when field irrigation, noting fertile liquid medicine injection system 7 will inject in point water-supply-pipe 6 with water by solution liquid together, field is poured into after conglomerate integration, practical, cost is low, install simple to operate, efficiently solve the problem that the dispenser of large area farmland fertilization is uneven.
Embodiment 2, when all farmlands all need irrigate and note fertile medicine injector be the fertile medicine injector of differential note or elbow bypass type note fertile medicine injector time, start stem system 1, first open from the irrigation valve 8 corresponding to the nearest first piece of farmland of stem system 1, the water at water source place enters point water-supply-pipe 6 through total water-supply-pipe 5 under the effect of stem system 1, solution liquid can be poured into point water-supply-pipe 6 by fertilizer medicament storage tank equably that simultaneously note in fertile liquid medicine injection system 7, field is entered after mixing with the water in point water-supply-pipe 6, after irrigation terminates, fertilizer is utilized to add solution liquid for medicine system 3 to fertilizer medicament storage tank.After first piece of farmland meets irrigation demand, close the irrigation valve 8 corresponding to first piece of farmland, then the irrigation valve 8 corresponding to second piece of farmland is opened, the like, until all farmlands have all been irrigated, adopt this water, the pattern that solution liquid is carried separately, then corresponding irrigation valve 8 is opened according to actual needs when field irrigation, noting fertile liquid medicine injection system 7 will inject in point water-supply-pipe 6 with water by solution liquid together, field is poured into after conglomerate integration, practical, cost is low, install simple to operate, efficiently solve the problem that the dispenser of large area farmland fertilization is uneven.
Embodiment 3, when the water requirement in every block farmland is different, some needs to irrigate, some does not need to irrigate, and to note fertile medicine injector be that venturi notes fertile medicine injector or ratio when noting fertile medicine injector, start stem system 1, open that the irrigation valve 8 corresponding to block farmland needing to irrigate, the water at water source place enters point water-supply-pipe 6 through total water-supply-pipe 5 under the effect of stem system 1, fertilizer enters a point defeated fertile grug transportation tube 9 for the solution liquid in medicine system 3 through total defeated fertile grug transportation tube 4 simultaneously, then point water-supply-pipe 6 is entered through the fertile liquid medicine injection system 7 of note, field is entered after mixing with the water in point water-supply-pipe 6.After this block farmland meets irrigation demand, close this irrigation valve 8 corresponding to block farmland, then the irrigation valve 8 corresponding to farmland that another block needs to irrigate is opened, so only open the irrigation valve 8 corresponding to farmland needing to irrigate according to demand, can realize selectively irrigating, to meet the irrigation demand of different croplands.Adopt this water, pattern that solution liquid is carried separately, then corresponding irrigation valve 8 is opened according to actual needs when field irrigation, noting fertile liquid medicine injection system 7 will inject in point water-supply-pipe 6 with water by solution liquid together, field is poured into after conglomerate integration, practical, cost is low, installs simple to operate, efficiently solves the problem that the dispenser of large area farmland fertilization is uneven.
Embodiment 4, when the water requirement in every block farmland different, some needs to irrigate, some does not need to irrigate, and to note fertile medicine injector be that the fertile medicine injector of differential note or elbow bypass type are when noting fertile medicine injector, start stem system 1, open that the irrigation valve 8 corresponding to block farmland needing to irrigate, the water at water source place enters point water-supply-pipe 6 through total water-supply-pipe 5 under the effect of stem system 1, solution liquid can be poured into point water-supply-pipe 6 by fertilizer medicament storage tank equably that simultaneously note in fertile liquid medicine injection system 7, enters field after mixing with the water in point water-supply-pipe 6.After this block farmland meets irrigation demand, close this irrigation valve 8 corresponding to block farmland, then the irrigation valve 8 corresponding to farmland that another block needs to irrigate is opened, so only open the irrigation valve 8 corresponding to farmland needing to irrigate according to demand, can realize selectively irrigating, to meet the irrigation demand of different croplands.Adopt this water, pattern that solution liquid is carried separately, then corresponding irrigation valve 8 is opened according to actual needs when field irrigation, noting fertile liquid medicine injection system 7 will inject in point water-supply-pipe 6 with water by solution liquid together, field is poured into after conglomerate integration, practical, cost is low, installs simple to operate, efficiently solves the problem that the dispenser of large area farmland fertilization is uneven.
Provide experimental data of the present invention below:
With the plot of 1000 mu, suppose that plot is strip, from stem system 1 position to last block field positional distance be 5000m.Calculating according to pipe flow speed 2m/s, traditional from stem system 1 water-supply-pipe, directly add fertile fertilizer if then adopted, is then 5000/2=2500s when solution flows to last block field required time, meter 42min.If fertilizer system is uneven, then, after 42 minutes, fertilizer solution concentration reduces, so first piece of field differs larger with the fertilizer solution concentration that last block field is injected.If irrigation time is in 40 minutes, then last block field just can not apply solution.And adopt this distributed precision fertilizing device for administration of drugs of design now, because be full of solution in the fertilizer medicament storage tank of the fertile liquid medicine injection system 7 of note always, so when irrigating unlatching, fertilizer is also synchronously being noted in last block field, if when the solution in fertilizer medicament storage tank is less, fertilizer also can fertile liquid medicine injection system 7 fertilizer of note of giving of automatic or manual take supplementary solution for medicine system 3.If field does not have fertilizer medicament storage tank, because total defeated fertile grug transportation tube 4 caliber less (general caliber both can be satisfied the demand at Φ 16) used, so the flow velocity in total defeated fertile grug transportation tube 4 is larger, calculate according to pipe flow speed 20m/s, be then 5000/20=250s when solution flows to last block field required time, count 4 minutes.So relatively traditional fertilising insecticide-applying way, this land for growing field crops slight irrigation distributed precision fertilizing device for administration of drugs note fertilizer is more even.
Relatively traditional fertilising insecticide-applying way, land for growing field crops slight irrigation distributed precision fertilizing device for administration of drugs just takes out separately for medicine system 3 fertilizer system forming defeated fertile delivery systems the fertilizer of stem, under this device, just with the addition of the pipeline of defeated fertile loading, and pipeline due to adopt caliber less, so the low price of tubing, calculate by 1000 mu of ground, increase defeated fertile loading pipeline 5000m, field is distributed with 5 fertile systems of note, note fertile system and adopt differential fertilizer injector, then cost is greatly about 3000 yuan.And adopt the distributed precision fertilizing device for administration of drugs in this land for growing field crops that the fertilising dispenser in large area farmland can be made even, impel farmland to increase production, the profit of volume increase part gained is much larger than 3000 yuan.
Claims (9)
1. the distributed precision fertilizing device for administration of drugs of land for growing field crops slight irrigation, comprise stem system (1), fertilizer is for medicine system (3), hydraulic pipeline, the water inlet of stem system (1) is communicated with water source, hydraulic pipeline comprises the total water-supply-pipe (5) be communicated with stem system (1) delivery port, point water-supply-pipe (6) be communicated with total water-supply-pipe (5), it is characterized in that: set up the fertile liquid medicine injection system of note (7), fertilizer medicine supplying pipe road, point water-supply-pipe (6) is set up and irrigates valve (8), fertilizer is communicated with stem system (1) for medicine system (3), fertilizer medicine supplying pipe road comprises the total defeated fertile grug transportation tube (4) be communicated with for medicine system (3) with fertilizer, point defeated fertile grug transportation tube (9) be communicated with total defeated fertile grug transportation tube (4), the one end of noting fertile liquid medicine injection system (7) is communicated with a point defeated fertile grug transportation tube (9), note the other end of fertile liquid medicine injection system (7) and the inlet communication of irrigating valve (8).
2. the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation according to claim 1, it is characterized in that: described stem system (1) and fertilizer by pipeline connection, pipeline are provided with inlet valve (2) for medicine system (3).
3. the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation according to claim 1, it is characterized in that: described stem system (1) comprises water pump, filter, the water inlet of water pump is communicated with water source, the delivery port of water pump is communicated with the water inlet of filter, the delivery port of filter is communicated with total water-supply-pipe (5), and fertilizer is communicated with the delivery port of stem system (1) middle filtrator for medicine system (3).
4. the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation according to claim 1, it is characterized in that: described fertilizer comprises fertilizer tank, fertilizer pump for medicine system (3), the import of fertilizer pump and the outlet of fertilizer tank, fertilizer delivery side of pump is communicated with total defeated fertile grug transportation tube (4), and fertilizer is communicated with stem system (1) for the import of fertilizer tank in medicine system (3).
5. the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation according to claim 1, it is characterized in that: the fertile liquid medicine injection system (7) of described note comprises the fertile medicine injector of note, the import of noting fertile medicine injector is communicated with a point defeated fertile grug transportation tube (9), note the outlet of fertile medicine injector and the inlet communication of irrigating valve (8), noting fertile medicine injector is that venturi notes fertile medicine injector or ratio notes fertile medicine injector.
6. the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation according to claim 1, it is characterized in that: the fertile liquid medicine injection system (7) of described note comprises note fertile medicine injector, fertilizer medicament storage tank, the import of noting fertile medicine injector is communicated with a point defeated fertile grug transportation tube (9), note the outlet of fertile medicine injector and the inlet communication of fertilizer medicament storage tank, outlet and the inlet communication of irrigating valve (8) of fertilizer medicament storage tank, noting fertile medicine injector is that the fertile medicine injector of differential note or elbow bypass type note fertile medicine injector.
7. the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation according to claim 6, is characterized in that: be provided with liquid level gauge in described fertilizer medicament storage tank.
8. the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation according to claim 1, is characterized in that: described irrigation valve (8) is magnetic valve.
9. the distributed precision fertilizing device for administration of drugs of a kind of land for growing field crops slight irrigation according to claim 2, is characterized in that: described inlet valve (2) is ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410558859.4A CN104396417B (en) | 2014-10-20 | 2014-10-20 | A kind of land for growing field crops slight irrigation distributed precision fertilizing device for administration of drugs |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410558859.4A CN104396417B (en) | 2014-10-20 | 2014-10-20 | A kind of land for growing field crops slight irrigation distributed precision fertilizing device for administration of drugs |
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| CN104396417A true CN104396417A (en) | 2015-03-11 |
| CN104396417B CN104396417B (en) | 2016-08-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060112625A1 (en) * | 2004-10-15 | 2006-06-01 | Mcneff Clayton V | Environmentally low-impact fertigation system |
| CN101803507A (en) * | 2010-03-03 | 2010-08-18 | 北京农业智能装备技术研究中心 | Bypass automatic fertigation device and method thereof |
| CN202232138U (en) * | 2011-08-31 | 2012-05-30 | 华南农业大学 | Drip irrigation fertilization system applicable to dispersive farmers |
| CN103636344A (en) * | 2013-12-20 | 2014-03-19 | 重庆华宇园林股份有限公司 | Automatic irrigation equipment for garden greening |
| US20140174546A1 (en) * | 2009-09-29 | 2014-06-26 | Virid Services, Llc | System and method for injecting a fluid additive into a fluid dispensation system |
-
2014
- 2014-10-20 CN CN201410558859.4A patent/CN104396417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060112625A1 (en) * | 2004-10-15 | 2006-06-01 | Mcneff Clayton V | Environmentally low-impact fertigation system |
| US20140174546A1 (en) * | 2009-09-29 | 2014-06-26 | Virid Services, Llc | System and method for injecting a fluid additive into a fluid dispensation system |
| CN101803507A (en) * | 2010-03-03 | 2010-08-18 | 北京农业智能装备技术研究中心 | Bypass automatic fertigation device and method thereof |
| CN202232138U (en) * | 2011-08-31 | 2012-05-30 | 华南农业大学 | Drip irrigation fertilization system applicable to dispersive farmers |
| CN103636344A (en) * | 2013-12-20 | 2014-03-19 | 重庆华宇园林股份有限公司 | Automatic irrigation equipment for garden greening |
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| CN104396417B (en) | 2016-08-10 |
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