CN204670035U - A kind of Water saving type watering arrangement improveing saline land - Google Patents
A kind of Water saving type watering arrangement improveing saline land Download PDFInfo
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- CN204670035U CN204670035U CN201520363307.8U CN201520363307U CN204670035U CN 204670035 U CN204670035 U CN 204670035U CN 201520363307 U CN201520363307 U CN 201520363307U CN 204670035 U CN204670035 U CN 204670035U
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Abstract
The utility model discloses a kind of Water saving type watering arrangement improveing saline land, described Water saving type watering arrangement comprises: fresh water storage tank and salt water recovery tank; Be embedded in irrigation salt discharge device and the brine recovery facility of underground, described irrigation salt discharge device is communicated with described fresh water storage tank, and described brine recovery facility is communicated with described salt water recovery tank; Described salt water recovery tank is communicated with saline-water reclamation device, and described saline-water reclamation device is communicated with described fresh water storage tank.The utility model is used for soil irrigation and the improvement in area, saline land, micro-profit to be irrigated and hidden pipe salt discharge and saline-water reclamation technology combine dexterously, fresh water recycles, not only fresh-water-saving resource, solve the serious deficient problem of area, saline land freshwater resources, and improve salt discharge effect, improve saline land and irrigate and improved effect.
Description
Technical field
The utility model relates to alkaline land improving technical field, is specifically related to a kind of Water-Saving Irrigation System improveing saline land.
Background technology
Along with deepening continuously of economic development, ecological problem becomes increasingly conspicuous, and particularly the soil salination problem of coastal area is more outstanding.The saline land of coastal area has that salinity is high, nutrient is low, proportion and unit weight is large, porosity and the shortcoming such as osmotic coefficient is little, greatly constrains ecological construction and the agricultural production of coastal area.And in area, saline land, freshwater resources famine, irrigation conditions is very limited, is the principal element affecting plant growth.Therefore, improve the ecological problem in area, saline land, fundamentally in the urgent need to address is the thorough improvement problem in saline land.
The soil moved in improve the original planting technology of technology maturation is still continued to use in the planting technique of current coastal area, but the farmland destructiveness of soil moved in improve the original planting technology to region of fetching earth is larger, even destroy local ecotope, and long-term, a large amount of planting soil transportations, cause road traffic to strengthen, easily cause congestion in road, heavy goods vehicles has had a strong impact on again the service life of road, the tail gas contaminated environment again of discharge, flows to energy flow from goods and materials and all causes great waste, also had a strong impact on the quality of environment.And this planting technique can not fundamentally improve and improve the soil in saline land.
And at present in alkaline land improving technology, be all generally by flood irrigation mode salt reduction.Because flood irrigation cost is low, operating process is simple, and institute is adopted by this way in a large number.But flood irrigation very easily causes water resource waste, and draining will cause underground water to rise not in time, causes soil secondary salinization.In order to strengthen salt discharge effect better, a lot of document discloses and uses flood irrigation to add the mode that underground hidden pipe salt discharge combines, and improves salt discharge effect, but still can't resolve the technical problem of waste water resource and salt discharge weak effect.
Micro-profit irrigation is fed water to soil in the mode of slowly permeating with the water of trace, makes a kind of Novel underground irrigation method that soil conservation is moistening.Immunohistochemistry principle is introduced irrigation field by it, with the water absorption course of the penetration theory simulation biological semi-permeable film of semipermeable membrane.On semi-transparent membranous wall, the size in hole allows hydrone to pass through, and does not allow larger micel and solid particle to pass through.When being full of water in micro-profit irrigation pipe, hydrone is by these micropores to tube wall external migration, if pipe is embedded in soil, moisture further to soil mobility, will make ground moistening, play irrigation effect.
Be different from various irrigation methods in the past, micro-profit is irrigated to irrigate continuously as feature, is the Novel irrigation mode that a kind of Modulatory character is very strong.Water absorption course due to plant is a continuous print process, no matter all irrigation methods watered, sprayed in the past, drip irrigation or infiltrating irrigation be batch (-type) and irrigate, all batch (-type) irrigation methods are all difficult to avoid the infiltration of moisture, evaporation and surface runoff, the availability of irrigation water is low, causes the waste of water resource.Therefore in the area that water resource lacks, micro-profit to irrigate with a kind of irrigation method of novel water-saving just approve by increasing people.
Summary of the invention
Technical problem to be solved in the utility model is: the deficiency existed for prior art, a kind of Water saving type watering arrangement improveing saline land is provided, micro-profit is irrigated by this device and underground salt discharge and desalination combine, easy to use, not only effectively can improve alkaline land soil, and water-saving result is remarkable, in order to solve deficiency of the prior art.
For solving the problems of the technologies described above, the technical solution of the utility model is:
Improve the Water saving type watering arrangement in saline land, described Water saving type watering arrangement comprises:
Fresh water storage tank and salt water recovery tank;
Be embedded in irrigation salt discharge device and the brine recovery facility of underground, described irrigation salt discharge device is communicated with described fresh water storage tank, and described brine recovery facility is communicated with described salt water recovery tank;
Described salt water recovery tank is communicated with saline-water reclamation device, and described saline-water reclamation device is communicated with described fresh water storage tank.
As the preferred technical scheme of one, described irrigation salt discharge device comprises the multiple micro-profit pipe being embedded in underground, and described multiple micro-profit pipe be arranged in parallel, and by fresh water storage tank described in fresh water pipeline communication.Preferably, the micro-profit pipe of semipermeable membrane selected by micro-profit pipe, and the diameter of the upper micropore of micro-profit pipe is 10 ~ 900nm, and the distribution density of micropore on micro-profit pipe is 10 ~ 200,000/cm
2.
As the preferred technical scheme of one, described brine recovery facility comprises the multiple salt solution recovery tubes being embedded in underground, described multiple salt solution recovery tube be arranged in parallel and consistent with the bearing of trend of described micro-profit pipe, and the tube wall of described salt solution recovery tube is evenly provided with multiple recovery holes; Described multiple salt solution recovery tube is communicated with described salt water recovery tank by brine pipeline.The diameter of recovery holes is 0.1 ~ 1cm.
As a kind of technical scheme of improvement, described multiple salt solution recovery tube and described micro-profit pipe are crisscross arranged, and are arranged on the circumference intersection of adjacent two micro-profit pipes.Present inventor is devoted for years in alkaline land improving and planting technique research, by to the research of several irrigation method and experiment, not only select fresh-water-saving resource and the better micro-profit of irrigation effect is irrigated and added the alkaline land soil mode of ameliorating that underground salt discharge combines, and creatively salt solution recovery tube is arranged on the circumference intersection of adjacent two micro-profit pipes, drastically increase salt discharge effect.Because the feature of micro-profit technology is exactly along with micro-profit time lengthening, the wetting layer of micro-profit pipe surrounding soil is more and more thicker, extend outside gradually, it is last that in soil, form one be axle center with micro-profit pipe, along the cylindrical wetting body that the length direction of micro-profit pipe stretches, form a wetted front at the edge of wetting body.And for the area of the salinization of soil, micro-profit irrigate in moisture moving process in, the water of single-way moving carries the salt in soil and moves to the wetted front at wetting body edge, and enrichment near wetted front, salinity in wetting body is reduced gradually, and the soil in wetting body is desalinated, and is conducive to plant growth, and the salinity moving to wetted front in soil between adjacent two micro-profit pipes collects in circumference intersection and is reclaimed by salt solution recovery tube, drastically increases salt discharge effect and efficiency.
As further preferred technical scheme again, described multiple salt solution recovery tube comprises and being crisscross arranged with described micro-profit pipe, and is arranged on first group of the circumference intersection of adjacent two micro-profit pipes; Also comprise and being arranged on below described micro-profit pipe, and be positioned to moisten with first group micro-and manage same circumferentially second group, described first group is all communicated with described salt water recovery tank by brine pipeline with the salt solution recovery tube of second group.Use salt solution recovery tube to reclaim respectively in the adjacent wetted front intersection of two micro-profit pipes and the bottom of wetted front i.e. the abundantest point of salt content, under the prerequisite of not wasting desalination water, further increase salt discharge effect, ensure that irrigation effect.
As the preferred technical scheme of one, described multiple salt solution recovery tube is provided with the gradient of 4 ~ 8 ° according to the flow direction of salt solution.Like this, under the prerequisite substantially not needing power, the salt solution in salt solution recovery tube can be back in brine pipeline.
As a kind of technical scheme of improvement, the degree of depth that described micro-profit pipe is embedded in underground is 40 ~ 60cm, and often the spacing of adjacent two micro-profit pipes is 100 ~ 120cm, and the spacing of described salt solution recovery tube is identical with the spacing of described micro-profit pipe.Adopt so a kind of arrangement mode of optimum, the irrigation effect that micro-profit is irrigated can be ensured, allow the necessary humidity of soil conservation plant growth and growing space, the salinity that can ensure again in soil can concentrate on salt solution recovery tube place to greatest extent and be recovered process, obtains best salt discharge effect.
As a kind of technical scheme of improvement, outside the tube wall of described micro-profit pipe and salt solution recovery tube, be equipped with permeable isolating.Described permeable isolating is preferably the protective layer that non-woven fabrics, sandstone filtrate or other seepy materials are made, and can prevent the micropore of micro-profit pipe and the recovery holes blocking of salt solution recovery tube.
As a kind of technical scheme of improvement, the brine pipeline between described brine recovery facility and described salt water recovery tank is disposed with back water pump and saline water filter; Fresh water pipeline between described fresh water storage tank and described irrigation salt discharge device is disposed with fresh water filter and control valve.
As the technical scheme improved further, described control valve is motor-operated control valve, and described micro-profit pipe neighbouring (namely within described wetting body) is provided with humidity sensor, and described humidity sensor is electrically connected described motor-operated control valve.Such a construction ensures the continuity of micro-profit irrigation and automatically control, using convenient, irrigate more effective.
As the technical scheme further improved, described Water saving type watering arrangement also comprises solution pond, and described solution pond is communicated in the upstream position of fresh water filter on described fresh water pipeline.So just, can realize water and fertilizer irrigation integration, more save artificial, fertilization effect is also better, and directly fertilising root surrounding in soil, improves utilization rate of fertilizer.
Owing to have employed technique scheme, the beneficial effects of the utility model are:
Water saving type watering arrangement of the present utility model comprises: the irrigation salt discharge device and the brine recovery facility that are embedded in underground, described irrigation salt discharge device is communicated with fresh water storage tank, described brine recovery facility is communicated with described recycling can, described salt water recovery tank is communicated with saline-water reclamation device, described saline-water reclamation device is communicated with fresh water storage tank, micro-profit is irrigated first by the utility model in irrigation technique and hidden pipe salt discharge and saline-water reclamation technology combine dexterously, fresh water recycles, for soil irrigation and the improvement in area, saline land, not only fresh-water-saving resource, solve the serious deficient problem of area, saline land freshwater resources, and by micro-profit and underground salt discharge are combined, improve the effect of saline land salt discharge to greatest extent, improve alkaline land improving effect.
Present inventor is devoted for years in alkaline land improving and planting technique research, by to the research of several irrigation method and experiment, select fresh-water-saving resource and the better micro-profit of irrigation effect is irrigated and added the alkaline land soil mode of ameliorating that underground salt discharge combines, and creatively salt solution recovery tube is arranged on the circumference intersection of adjacent two micro-profit pipes, be arranged on the wetted front place of salt separating/enriching, drastically increase salt discharge effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is micro-profit pipe of the present utility model and the Rankine-Hugoniot relations schematic diagram of salt solution recovery tube in underground;
Fig. 3 is the structural representation of the utility model embodiment 2.
In figure, 1. fresh water storage tank; 2. salt water recovery tank; 3. irrigate salt discharge device; 31. micro-profit pipes; 32. fresh water pipelines; 33. fresh water filters; 34. control valves; 4. brine recovery facility; 41. salt solution recovery tubes; 42. brine pipelines; 43. back water pumps; 44. saline water filters; 5. saline-water reclamation device; 6. solution pond; 61. solution control valves; 7. wetting body; 8. wetted front; 9. ground level.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
As shown in Figure 1, a kind of Water saving type watering arrangement improveing saline land, described Water saving type watering arrangement comprises:
Fresh water storage tank 1 and salt water recovery tank 2;
Be embedded in irrigation salt discharge device 3 and the brine recovery facility 4 of underground, described irrigation salt discharge device 3 is communicated with described fresh water storage tank 1, and described brine recovery facility 4 is communicated with described salt water recovery tank 2;
Described salt water recovery tank 2 is communicated with saline-water reclamation device 5, and described saline-water reclamation device 5 is communicated with described fresh water storage tank 1.
Be below two kinds preferred embodiment concrete.
Embodiment 1
As depicted in figs. 1 and 2, a kind of Water saving type watering arrangement improveing saline land, described Water saving type watering arrangement comprises:
Fresh water storage tank 1 and salt water recovery tank 2;
Be embedded in irrigation salt discharge device 3 and the brine recovery facility 4 of underground, described irrigation salt discharge device 3 is communicated with described fresh water storage tank 1, and described brine recovery facility 4 is communicated with described salt water recovery tank 2;
Described salt water recovery tank 2 is communicated with saline-water reclamation device 5, and described saline-water reclamation device 5 is communicated with described fresh water storage tank 1.
Described irrigation salt discharge device 3 comprises the multiple micro-profit pipe 31 being embedded in underground, and described multiple micro-profit pipe 31 be arranged in parallel, and is communicated with described fresh water storage tank 1 by fresh water pipeline 32.The micro-profit pipe of semipermeable membrane selected by micro-profit pipe 31, and the diameter of the upper micropore of micro-profit pipe is 100nm, and the distribution density of micropore on micro-profit pipe is 180,000/c ㎡.
Described brine recovery facility 4 comprises the multiple salt solution recovery tubes 41 being embedded in underground, and described multiple salt solution recovery tube 41 be arranged in parallel and consistent with the bearing of trend of described micro-profit pipe 31, and the tube wall of described salt solution recovery tube 41 is evenly provided with multiple recovery holes; Described multiple salt solution recovery tube 41 is communicated with described salt water recovery tank 2 by brine pipeline 42.The diameter of recovery holes is 0.2cm.
Described multiple salt solution recovery tube 41 is crisscross arranged with described micro-profit pipe 31, and is arranged on the circumference intersection of adjacent two micro-profit pipes 31.
Described multiple salt solution recovery tube 41 is provided with the gradient of 6 ° according to the flow direction of salt solution.Like this, under the prerequisite substantially not needing power, the salt solution in salt solution recovery tube 41 can be back in brine pipeline 42.
The degree of depth that described micro-profit pipe 31 is embedded in underground is 45cm, and often the spacing of adjacent two micro-profit pipes 31 is 110cm, and the spacing of described salt solution recovery tube 41 is identical with the spacing of described micro-profit pipe 31.
Permeable isolating is equipped with outside the tube wall of described micro-profit pipe 31 and salt solution recovery tube 41.Described permeable isolating is preferably non-woven fabrics protective layer, can prevent the micropore of micro-profit pipe and the recovery holes blocking of salt solution recovery tube.
Brine pipeline 42 between described brine recovery facility 4 and described salt water recovery tank 2 is disposed with back water pump 43 and saline water filter 44; Fresh water pipeline 32 between described fresh water storage tank 1 and described irrigation salt discharge device 3 is disposed with fresh water filter 33 and control valve 34.Described control valve 34 is motor-operated control valve, and be provided with humidity sensor in the wetting body 7 that described micro-profit pipe 31 is formed, described humidity sensor is electrically connected described motor-operated control valve.
Embodiment 2
As shown in Figures 2 and 3, a kind of Water saving type watering arrangement improveing saline land, described Water saving type watering arrangement comprises:
Fresh water storage tank 1 and salt water recovery tank 2;
Be embedded in irrigation salt discharge device 3 and the brine recovery facility 4 of underground, described irrigation salt discharge device 3 is communicated with described fresh water storage tank 1, and described brine recovery facility 4 is communicated with described salt water recovery tank 2;
Described salt water recovery tank 2 is communicated with saline-water reclamation device 5, and described saline-water reclamation device 5 is communicated with described fresh water storage tank 1.
Described irrigation salt discharge device 3 comprises the multiple micro-profit pipe 31 being embedded in underground, and described multiple micro-profit pipe 31 be arranged in parallel, and is communicated with described fresh water storage tank 1 by fresh water pipeline 32.The micro-profit pipe of semipermeable membrane selected by micro-profit pipe 31, and the diameter of the upper micropore of micro-profit pipe is 200nm, and the distribution density of micropore on micro-profit pipe is 120,000/c ㎡.
Described brine recovery facility 4 comprises the multiple salt solution recovery tubes 41 being embedded in underground, and described multiple salt solution recovery tube 41 be arranged in parallel and consistent with the bearing of trend of described micro-profit pipe 31, and the tube wall of described salt solution recovery tube 41 is evenly provided with multiple recovery holes; Described multiple salt solution recovery tube 41 is communicated with described salt water recovery tank 2 by brine pipeline 42.The diameter of recovery holes is 0.3cm.
Described multiple salt solution recovery tube 41 is crisscross arranged with described micro-profit pipe 31, and is arranged on first group of the circumference intersection of adjacent two micro-profit pipes 31; Also comprise and being arranged on below described micro-profit pipe 31, and be positioned at same circumferentially second group with micro-profit pipe 31 of first group, described first group is all communicated with described salt water recovery tank 2 by brine pipeline 42 with the salt solution recovery tube 41 of second group.Along with micro-profit time lengthening, the wetting layer of micro-profit pipe 31 surrounding soil is more and more thicker, extends outside gradually, and finally in soil, forming one is axle center with micro-profit pipe 31, along the cylindrical wetting body 7 that the length direction on ridge stretches, form a wetted front 8 at the edge of wetting body 7.And for the area of the salinization of soil, micro-profit irrigate in moisture moving process in, the water of single-way moving carries the salt in soil and moves to the wetted front 8 at wetting body edge, and enrichment near wetted front 8, salinity in wetting body 7 is reduced gradually, and the soil in wetting body 7 is desalinated, and is conducive to plant growth, and the salt movement that the soil between adjacent two micro-profit pipes 31 contains is to wetted front 8, and collects in circumference intersection and reclaimed by salt solution recovery tube 41.
Described multiple salt solution recovery tube 41 is provided with the gradient of 7 ° according to the flow direction of salt solution.Like this, under the prerequisite substantially not needing power, the salt solution in salt solution recovery tube 41 can be back in brine pipeline 42.The setting of this degree of depth and spacing, the plant that the wetting body 7 that micro-profit pipe 31 surrounding just in time can be allowed to be formed is planted relatively and ground level 9 have a rational growing space.
The degree of depth that described micro-profit pipe 31 is embedded in underground is 50cm, and often the spacing of adjacent two micro-profit pipes 31 is 120cm, and the spacing of described salt solution recovery tube 41 is identical with the spacing of described micro-profit pipe 31.
Permeable isolating is equipped with outside the tube wall of described micro-profit pipe 31 and salt solution recovery tube 41.Described permeable isolating is preferably non-woven fabrics.
Brine pipeline 42 between described brine recovery facility 4 and described salt water recovery tank 2 is disposed with back water pump 43 and saline water filter 44; Fresh water pipeline 32 between described fresh water storage tank 1 and described irrigation salt discharge device 3 is disposed with fresh water filter 33 and control valve 34.Described control valve 34 is motor-operated control valve, and be provided with humidity sensor in the wetting body of Zhou Shaoyi micro-profit pipe 31 formation, described humidity sensor is electrically connected described motor-operated control valve.
Described Water saving type watering arrangement also comprises solution pond 6, and described solution pond 6 is communicated in the upstream position of fresh water filter 33 on described fresh water pipeline 32, is provided with solution control valve 61 between solution pond 6 and described fresh water pipeline 32.
Claims (10)
1. improve the Water saving type watering arrangement in saline land, it is characterized in that described Water saving type watering arrangement comprises:
Fresh water storage tank and salt water recovery tank;
Be embedded in irrigation salt discharge device and the brine recovery facility of underground, described irrigation salt discharge device is communicated with described fresh water storage tank, and described brine recovery facility is communicated with described salt water recovery tank;
Described salt water recovery tank is communicated with saline-water reclamation device, and described saline-water reclamation device is communicated with described fresh water storage tank.
2. a kind of Water saving type watering arrangement improveing saline land as claimed in claim 1, is characterized in that: described irrigation salt discharge device comprises the multiple micro-profit pipe being embedded in underground, and described multiple micro-profit pipe be arranged in parallel, and by fresh water storage tank described in fresh water pipeline communication.
3. a kind of Water saving type watering arrangement improveing saline land as claimed in claim 2, it is characterized in that: described brine recovery facility comprises the multiple salt solution recovery tubes being embedded in underground, described multiple salt solution recovery tube be arranged in parallel and consistent with the bearing of trend of described micro-profit pipe, and the tube wall of described salt solution recovery tube is evenly provided with multiple recovery holes; Described multiple salt solution recovery tube is communicated with described salt water recovery tank by brine pipeline.
4. a kind of Water saving type watering arrangement improveing saline land as claimed in claim 3, is characterized in that: described multiple salt solution recovery tube and described micro-profit pipe are crisscross arranged, and is arranged on the circumference intersection of adjacent two micro-profit pipes.
5. a kind of Water saving type watering arrangement improveing saline land as claimed in claim 3, is characterized in that: described multiple salt solution recovery tube comprises and being crisscross arranged with described micro-profit pipe, and is arranged on first group of the circumference intersection of adjacent two micro-profit pipes; Also comprise and being arranged on below described micro-profit pipe, and be positioned to moisten with first group micro-and manage same circumferentially second group, described first group is all communicated with described salt water recovery tank by brine pipeline with the salt solution recovery tube of second group.
6. a kind of Water saving type watering arrangement improveing saline land as claimed in claim 3, is characterized in that: described multiple salt solution recovery tube is provided with the gradient of 4 ~ 8 ° according to the flow direction of salt solution.
7. a kind of Water saving type watering arrangement improveing saline land as described in any one of claim 3 to 6 claim, it is characterized in that: the degree of depth that described micro-profit pipe is embedded in underground is 40 ~ 60cm, often the spacing of adjacent two micro-profit pipes is 100 ~ 120cm, and the spacing of described salt solution recovery tube is identical with the spacing of described micro-profit pipe.
8. a kind of Water saving type watering arrangement improveing saline land as claimed in claim 7, is characterized in that: be equipped with permeable isolating outside the tube wall of described micro-profit pipe and salt solution recovery tube.
9. a kind of Water saving type watering arrangement improveing saline land as claimed in claim 7, is characterized in that: the brine pipeline between described brine recovery facility and described salt water recovery tank is disposed with back water pump and saline water filter; Fresh water pipeline between described fresh water storage tank and described irrigation salt discharge device is disposed with fresh water filter and control valve.
10. a kind of Water saving type watering arrangement improveing saline land as claimed in claim 9, is characterized in that: described control valve is motor-operated control valve, be provided with humidity sensor near described micro-profit pipe, described humidity sensor is electrically connected described motor-operated control valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520363307.8U CN204670035U (en) | 2015-05-30 | 2015-05-30 | A kind of Water saving type watering arrangement improveing saline land |
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| CN201520363307.8U CN204670035U (en) | 2015-05-30 | 2015-05-30 | A kind of Water saving type watering arrangement improveing saline land |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104871939A (en) * | 2015-05-30 | 2015-09-02 | 潍坊友容实业有限公司 | Water-saving irrigation device of improved saline-alkali soil |
| CN106211839A (en) * | 2016-07-15 | 2016-12-14 | 佟保根 | A kind of water discharge method of alkaline land soil |
| CN109231501A (en) * | 2018-11-09 | 2019-01-18 | 上海海洋大学 | A kind of microorganism desalination system for alkaline land improving |
-
2015
- 2015-05-30 CN CN201520363307.8U patent/CN204670035U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104871939A (en) * | 2015-05-30 | 2015-09-02 | 潍坊友容实业有限公司 | Water-saving irrigation device of improved saline-alkali soil |
| CN104871939B (en) * | 2015-05-30 | 2018-04-06 | 潍坊友容实业有限公司 | A kind of Water saving type watering arrangement for improveing salt-soda soil |
| CN106211839A (en) * | 2016-07-15 | 2016-12-14 | 佟保根 | A kind of water discharge method of alkaline land soil |
| CN106211839B (en) * | 2016-07-15 | 2018-11-02 | 佟保根 | A kind of water discharge method of alkaline land soil |
| CN109231501A (en) * | 2018-11-09 | 2019-01-18 | 上海海洋大学 | A kind of microorganism desalination system for alkaline land improving |
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