CN108863489A - A kind of vegetable hydroponic nutrient solution of the nutrient containing organic carbon and preparation method thereof - Google Patents
A kind of vegetable hydroponic nutrient solution of the nutrient containing organic carbon and preparation method thereof Download PDFInfo
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- CN108863489A CN108863489A CN201810921566.6A CN201810921566A CN108863489A CN 108863489 A CN108863489 A CN 108863489A CN 201810921566 A CN201810921566 A CN 201810921566A CN 108863489 A CN108863489 A CN 108863489A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Abstract
The invention discloses vegetable hydroponic nutrient solutions of a kind of nutrient containing organic carbon and preparation method thereof, 0.15~0.20 part of calcium nitrate is added in 950~1050 parts of water, 0.30~0.40 part of potassium nitrate, 0.02~0.04 part of potassium dihydrogen phosphate, 0.15~0.20 part of magnesium sulfate, 0.030~0.050 part of sodium chloride, 0.020~0.040 part of ferrous sulfate, 0.002~0.004 part of boric acid, 0.001~0.003 part of manganese sulfate, 0.00008~0.00015 part of copper sulphate, 0.0001~0.0003 part of zinc sulfate, 0.5~16 part of organic carbon nutrient, oxygenation to oxygen content be 6.0~8.0mg/L to obtain the final product.The present invention, which can effectively solve the problem that, is added organotrophic problem in vegetable aquaculture, it is smelly and the problems such as vegetable aquaculture root system anoxic rotten to avoid the occurrence of aqueous, vegetable aquaculture is set to obtain the supply of comprehensive nutrient especially organic carbon nutrient from mill water culture nutrient solution, organic carbon nutrient and inorganic nutrients are absorbed with suitably matching by vegetable aquaculture, vegetable aquaculture is effectively improved to the utilization rate of each nutrient, it is effectively improved the health status of vegetable aquaculture, improves the output and quality of vegetable aquaculture.
Description
Technical field
The present invention is in vegetables and fertilizer field, and in particular to a kind of the vegetable hydroponic nutrient solution and its system of the nutrient containing organic carbon
Preparation Method.
Background technique
Vegetables are planted in most area all and are using the mode for having soil to plant at present, and small part area uses water planting
The method of plantation.Water planting planting vegetable have the characteristics that can three-dimensional, batch production, facility, automation, have can reduce vegetable
The advantages of dish soil-borne disease and insect pest is a kind of trend of the future of agriculture development.But the nutrient solution of current vegetable aquaculture uses
Inorganic nutrients are prepared, and can not provide organic nutrition to vegetable aquaculture, this allows for all vegetable aquacultures pole during the growth process
It spends and lacks carbon, be in sub-health state, plant is slim and frahile easily susceptible, and utilization rate of fertilizer low yield is low, poor quality poor taste.Therefore,
The vegetable hydroponic nutrient solution for researching and developing a kind of nutrient containing organic carbon, organic farming is combined with water culture technique, thus real
Organising for existing vegetable aquaculture, improves the output and quality of vegetable aquaculture, is expected to break through the development bottleneck of current vegetable aquaculture, accelerates
The development process of vegetable aquaculture.
Summary of the invention
It is an object of the invention to provide a kind of vegetables water of nutrient containing organic carbon in place of overcome the deficiencies in the prior art
Cultivation nutrient fluid and preparation method thereof.
The technical solution adopted by the present invention to solve the technical problems first is that：
A kind of preparation method of the vegetable hydroponic nutrient solution of the nutrient containing organic carbon, including：
1) each component is weighed according to following mass fraction meters：0.15~0.20 part of calcium nitrate, 0.30~0.40 part of potassium nitrate,
0.02~0.04 part of potassium dihydrogen phosphate, 0.15~0.20 part of magnesium sulfate, 0.030~0.050 part of sodium chloride, ferrous sulfate 0.020
~0.040 part, 0.002~0.004 part of boric acid, 0.001~0.003 part of manganese sulfate, 0.00008~0.00015 part of copper sulphate, sulphur
0.0001~0.0003 part of sour zinc, 0.5~16 part of organic carbon nutrient；
Wherein, the organic carbon nutrient is liquid organic carbon or organic carbon liquid manure；The preparation method of the organic carbon liquid manure
Including：With the biogas slurry of the content of organic matter 1~2%, 0.15~0.25% organic carbon bacterium solution for accounting for biogas slurry quality is added, is dissolving
Handle 12~13 days under the micro-oxygen conditions that oxygen content is 1.5~2.5mg/L to obtain the final product；
2) each component is dissolved in 950~1050 parts of water, after mixing, oxygenation to oxygen content be 6.0~
8.0mg/L to get.
In one embodiment：In the liquid organic carbon, the content of organic carbon is 140~160g/L.
In one embodiment：In the organic carbon bacterium solution, the content of organic carbon is 140~160g/L, bacillus subtilis
Living bacteria count is not less than 200,000,000/mL.
In one embodiment：The organic carbon nutrient is 0.5~0.8 part of liquid organic carbon.
In one embodiment：The organic carbon nutrient is 10.0~16.0 parts of organic carbon liquid manure.
In one embodiment：The mass fraction of each component is：0.15 part of calcium nitrate, 0.30 part of potassium nitrate, biphosphate
0.02 part of potassium, 0.15 part of magnesium sulfate, 0.040 part of sodium chloride, 0.030 part of ferrous sulfate, 0.003 part of boric acid, manganese sulfate 0.002
Part, 0.0001 part of copper sulphate, 0.0002 part of zinc sulfate, 0.5 part of liquid organic carbon, 1000 parts of water；Dissolved oxygen content 6.0mg/L.
In one embodiment：The mass fraction of each component is：0.20 part of calcium nitrate, 0.40 part of potassium nitrate, biphosphate
0.04 part of potassium, 0.20 part of magnesium sulfate, 0.040 part of sodium chloride, 0.030 part of ferrous sulfate, 0.003 part of boric acid, manganese sulfate 0.002
Part, 0.0001 part of copper sulphate, 0.0002 part of zinc sulfate, 0.8 part of liquid organic carbon, 1000 parts of water；Dissolved oxygen content 6.0mg/L.
In one embodiment：The mass fraction of each component is：0.16 part of calcium nitrate, 0.32 part of potassium nitrate, biphosphate
0.024 part of potassium, 0.16 part of magnesium sulfate, 0.040 part of sodium chloride, 0.030 part of ferrous sulfate, 0.003 part of boric acid, manganese sulfate 0.002
Part, 0.0001 part of copper sulphate, 0.0002 part of zinc sulfate, 11.2 parts of organic carbon liquid manure, 1000 parts of water；Dissolved oxygen content 6.5mg/L；
The organic carbon liquid manure is the biogas slurry with the content of organic matter 2%, the 0.2% organic carbon bacterium solution for accounting for biogas slurry quality is added, molten
It is obtained after being handled 13 days under the micro-oxygen conditions that solution oxygen content is 1.5mg/L.
In one embodiment：The mass fraction of each component is：0.19 part of calcium nitrate, 0.38 part of potassium nitrate, biphosphate
0.036 part of potassium, 0.19 part of magnesium sulfate, 0.040 part of sodium chloride, 0.030 part of ferrous sulfate, 0.003 part of boric acid, manganese sulfate 0.002
Part, 0.0001 part of copper sulphate, 0.0002 part of zinc sulfate, 14.8 parts of organic carbon liquid manure, 1000 parts of water；Dissolved oxygen content 7.5mg/L；
The organic carbon liquid manure is the biogas slurry with the content of organic matter 1%, the 0.2% organic carbon bacterium solution for accounting for biogas slurry quality is added, molten
It is obtained after being handled 12 days under the micro-oxygen conditions that solution oxygen content is 2.5mg/L.
The technical solution adopted by the present invention to solve the technical problems second is that：
A kind of vegetable hydroponic nutrient solution of the nutrient containing organic carbon according to prepared by above-mentioned preparation method.
Compared with the background art, it has the following advantages that the technical program：
The nutrient solution of vegetable aquaculture is prepared using inorganic nutrients at present, and organic nutrition, water can not be provided for vegetable aquaculture
Training vegetables, scarce carbon is serious during the growth process.If but additionally addition is normal directly into existing mill water culture nutrient solution in cultivation
The organic nutrient substances such as the carbon source of rule, such as glucose will lead to plant death.This is the huge bottleneck institute of current water planting industry
?.And the present invention avoids drawbacks described above by the synergy of each component, efficiently solves and organic battalion is added in vegetable aquaculture
It supports and overcomes aqueous smelly and the problems such as vegetable aquaculture root system anoxic rotten, vegetable aquaculture is enable to obtain from mill water culture nutrient solution
The supply of comprehensive nutrient especially organic carbon nutrient, organic carbon nutrient and inorganic nutrients are inhaled with suitably matching by vegetable aquaculture
It receives, effectively improves vegetable aquaculture to the utilization rate of each nutrient, be effectively improved the health status of vegetable aquaculture, improve vegetable aquaculture
Output and quality.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the appearance character of the vegetable hydroponic nutrient solution of the prepared nutrient containing organic carbon in the embodiment of the present invention 1.
Fig. 2 is to seek with ordinary nutritional liquid and with the vegetable hydroponic of the prepared nutrient containing organic carbon in the embodiment of the present invention 1
Nutrient solution cultivates the effect contrast figure of celery respectively, wherein left side is with ordinary nutritional liquid water planting dish, and right side is to be contained with of the invention
The vegetable hydroponic suspension culture dish of organic carbon nutrient.
Fig. 3 is to seek with ordinary nutritional liquid and with the vegetable hydroponic of the prepared nutrient containing organic carbon in the embodiment of the present invention 3
Nutrient solution cultivates the effect contrast figure of romaine lettuce and cabbage respectively, wherein left side is the vegetables water with the nutrient of the invention containing organic carbon
Cultivation nutrient fluid water planting dish, right side are with ordinary nutritional liquid water planting dish.
Specific embodiment
The contents of the present invention are illustrated below by embodiment：
In following embodiments, it is to be with molasses preparing alcohol waste liquid that liquid organic carbon, which is purchased from Fujian oasis biochemistry Co., Ltd,
Raw material is produced according to patent (ZL201210192776.9) and is obtained, and the name of an article is liquid organic carbon (liquid, 1.2kg/ bottles of packagings),
In contain organic carbon nutrient (molecular particle size is water-soluble less than 1 micron) 150g/L；Organic carbon bacterium solution is limited purchased from Fujian oasis biochemistry
Company, the name of an article are organic carbon bacterium solution (liquid, 6kg/ barrel packaging), wherein contain organic carbon nutrient (molecular particle size less than 1 micron,
It is water-soluble) 150g/L, wherein the living bacteria count of bacillus subtilis is 200,000,000/mL.
Embodiment 1
A kind of production of the vegetable hydroponic nutrient solution of the nutrient containing organic carbon：After buying required raw material respectively from the market,
Clear water 1000kg (i.e. 1000L), calcium nitrate 0.15kg, potassium nitrate 0.30kg, biphosphate are separately added into taper mixing tank
Potassium 0.02kg, magnesium sulfate 0.15kg, sodium chloride 0.040kg, ferrous sulfate 0.030kg, boric acid 0.003kg, manganese sulfate
Then 0.002kg, copper sulphate 0.0001kg, zinc sulfate 0.0002kg, liquid organic carbon 0.5kg start conical mixer, make each
Raw material is sufficiently mixed, uniform dissolution.Then appropriate oxygen is squeezed into mixed liquor using oxygenerator, makes the dissolved oxygen in mixed liquor
Content reaches 6.0mg/L.It is stand-by that mixed liquor is finally filled to storage in sealing bucket.
Embodiment 2
A kind of production of the vegetable hydroponic nutrient solution of the nutrient containing organic carbon：After buying required raw material respectively from the market,
Clear water 1000kg (i.e. 1000L), calcium nitrate 0.20kg, potassium nitrate 0.40kg, biphosphate are separately added into taper mixing tank
Potassium 0.04kg, magnesium sulfate 0.20kg, sodium chloride 0.040kg, ferrous sulfate 0.030kg, boric acid 0.003kg, manganese sulfate
Then 0.002kg, copper sulphate 0.0001kg, zinc sulfate 0.0002kg, liquid organic carbon 0.8kg start conical mixer, make each
Raw material is sufficiently mixed, uniform dissolution.Then appropriate oxygen is squeezed into mixed liquor using oxygenerator, makes the dissolved oxygen in mixed liquor
Content reaches 6.0mg/L.It is stand-by that mixed liquor is finally filled to storage in sealing bucket.
Embodiment 3
A kind of production of the vegetable hydroponic nutrient solution of the nutrient containing organic carbon：After buying required raw material respectively from the market,
Clear water 1000kg (i.e. 1000L), calcium nitrate 0.16kg, potassium nitrate 0.32kg, biphosphate are separately added into taper mixing tank
Potassium 0.024kg, magnesium sulfate 0.16kg, sodium chloride 0.040kg, ferrous sulfate 0.030kg, boric acid 0.003kg, manganese sulfate
0.002kg, copper sulphate 0.0001kg, zinc sulfate 0.0002kg, organic carbon liquid manure 11.2kg (the organic carbon liquid manure be be derived from instruct
Pacify the biogas slurry in the methane-generating pit on 500 pig farms of livestock on hand, through detecting, the content of organic matter 2%, addition accounts for the biogas slurry quality
0.2% organic carbon bacterium solution carries out obtaining after biological decomposition is handled 13 days under conditions of dissolved oxygen content is 1.5mg/L), so
After start conical mixer, be sufficiently mixed each raw material, uniform dissolution.Then appropriate oxygen is squeezed into mixed liquor using oxygenerator
Gas makes the dissolved oxygen content in mixed liquor reach 6.5mg/L.It is stand-by that mixed liquor is finally filled to storage in sealing bucket.
Embodiment 4
A kind of production of the vegetable hydroponic nutrient solution of the nutrient containing organic carbon：After buying required raw material respectively from the market,
Clear water 1000kg (i.e. 1000L), calcium nitrate 0.19kg, potassium nitrate 0.38kg, biphosphate are separately added into taper mixing tank
Potassium 0.036kg, magnesium sulfate 0.19kg, sodium chloride 0.040kg, ferrous sulfate 0.030kg, boric acid 0.003kg, manganese sulfate
0.002kg, copper sulphate 0.0001kg, (the organic carbon liquid manure is with being derived from one by zinc sulfate 0.0002kg, organic carbon liquid manure 14.8kg
The biogas slurry of the methane-generating pit on the pig farm that livestock on hand is 3000, through detecting, the content of organic matter 1%, addition accounts for the biogas slurry quality
0.2% organic carbon bacterium solution carries out obtaining after biological decomposition is handled 12 days under conditions of dissolved oxygen content is 2.5mg/L), so
After start conical mixer, be sufficiently mixed each raw material, uniform dissolution.Then appropriate oxygen is squeezed into mixed liquor using oxygenerator
Gas makes the dissolved oxygen content in mixed liquor reach 7.5mg/L.It is stand-by that mixed liquor is finally filled to storage in sealing bucket.
Fig. 2 and Fig. 3 is please referred to, the vegetable hydroponic nutrient solution of the prepared nutrient containing organic carbon respectively in embodiment 1 and 3
It cultivates celery respectively and is mixed the Contrast on effect of cabbage and romaine lettuce.It can be seen that the vegetables of two kinds of nutrients containing organic carbon of the invention
Mill water culture nutrient solution can remarkably promote vegetable growth.
Comparative example
Here is the illustration using product of the present invention and the comparative situation of ordinary nutritional liquid to be described further.
Test one：With organic carbon mill water culture nutrient solution prepared in the embodiment of the present invention 1 and ordinary nutritional liquid (commercially available, master
To be inorganic nutrients, be free of organic carbon nutrient) subjects are used as, it is tried respectively using a plastics water planting frame plantation celery
It tests, three layers of each water planting frame shares 90 implantation holes, plants 80 plants of celery, and each water planting frame is 30L with nutrition liquid measure, uses
The suction pump of 1.5kw makes the continuous self-loopa of nutrient solution.Plantation carries out observation analysis respectively after two weeks.Use organic carbon water planting nutrition
The celery growing way of liquid is energetic, and well developed root system, aqueous smells the fragrance for having a kind of celery；Use the celery growing way of ordinary nutritional liquid
Ruined weak, yellow is very thin, and root amount is thin, and aqueous smells the taste for having a kind of sewage ditch.It takes the celery in 30 caves to weigh respectively to compare,
As shown in table 1：
Table 1：Celery water culture experiment comparative situation
| Fresh weight (gram) | Root weight (gram) | Soluble solid content (%) | |
| Organic carbon mill water culture nutrient solution | 467.8 | 173.2 | 2.3 |
| Ordinary nutritional liquid | 275.2 | 82.4 | 1.6 |
It can be seen that in celery water planting from 1 test result of table using product of the present invention, comparison application ordinary nutritional liquid can be with
Effectively improve celery yield, celery root system weight, soluble solid content in celery.
Test two：With organic carbon mill water culture nutrient solution prepared in the embodiment of the present invention 3 and ordinary nutritional liquid (commercially available, master
To be inorganic nutrients, be free of organic carbon nutrient) be used as subjects, respectively using plastics water planting frame mixing plantation romaine lettuce and
Cabbage is tested, and three layers of each water planting frame shares 90 implantation holes, plants cabbage and each 40 plants of romaine lettuce, each water planting frame respectively
It is 30L with nutrition liquid measure, makes the continuous self-loopa of nutrient solution using the suction pump of 1.5kw.Plantation carries out observation point respectively after 50 days
Analysis.Energetic using the cabbage of organic carbon mill water culture nutrient solution and the equal growing way of romaine lettuce, well developed root system, aqueous is smelt light tasteless；Make
General with the cabbage growing way of ordinary nutritional liquid, root system is normally slightly inferior, and aqueous, which is smelt, a kind of thin smelly water taste road.It takes respectively
The romaine lettuce in the cabbage in 20 caves and 20 caves weighing comparison, as shown in table 2 and table 3：
Table 2：Cabbage water culture experiment comparative situation
| Fresh weight (gram) | Soluble solid content (%) | |
| Organic carbon mill water culture nutrient solution | 16854 | 6.4 |
| Ordinary nutritional liquid | 9345 | 4.2 |
It can be seen that in cabbage water planting from 2 test result of table using product of the present invention, comparison application ordinary nutritional liquid can be with
Effectively improve cabbage yield, soluble solid content in cabbage.
Table 3：Romaine lettuce water culture experiment comparative situation
| Fresh weight (gram) | Soluble solid content (%) | |
| Organic carbon mill water culture nutrient solution | 21348 | 1.7 |
| Ordinary nutritional liquid | 15657 | 0.8 |
It can be seen that in romaine lettuce water planting from 2 test result of table using product of the present invention, comparison application ordinary nutritional liquid can be with
Effectively improve romaine lettuce yield, soluble solid content in romaine lettuce.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (10)
1. a kind of preparation method of the vegetable hydroponic nutrient solution of nutrient containing organic carbon, it is characterised in that：Including：
1) each component is weighed according to following mass fraction meters：0.15~0.20 part of calcium nitrate, 0.30~0.40 part of potassium nitrate, phosphoric acid
0.02~0.04 part of potassium dihydrogen, 0.15~0.20 part of magnesium sulfate, 0.030~0.050 part of sodium chloride, ferrous sulfate 0.020~
0.040 part, 0.002~0.004 part of boric acid, 0.001~0.003 part of manganese sulfate, 0.00008~0.00015 part of copper sulphate, sulfuric acid
0.0001~0.0003 part of zinc, 0.5~16 part of organic carbon nutrient；
Wherein, the organic carbon nutrient is liquid organic carbon or organic carbon liquid manure；The preparation method of the organic carbon liquid manure includes：
With the biogas slurry of the content of organic matter 1~2%, 0.15~0.25% organic carbon bacterium solution for accounting for biogas slurry quality is added, contains in dissolved oxygen
Amount handles 12~13 days under conditions of being 1.5~2.5mg/L to obtain the final product；
2) each component is dissolved in 950~1050 parts of water, after mixing, oxygenation to oxygen content is 6.0~8.0mg/L,
To obtain the final product.
2. the preparation method of the vegetable hydroponic nutrient solution of the nutrient according to claim 1 containing organic carbon, it is characterised in that：Institute
It states in liquid organic carbon, the content of organic carbon is 140~160g/L.
3. the preparation method of the vegetable hydroponic nutrient solution of the nutrient according to claim 1 containing organic carbon, it is characterised in that：Institute
State in organic carbon bacterium solution, the content of organic carbon is 140~160g/L, the living bacteria count of bacillus subtilis not less than 200,000,000/
mL。
4. the preparation method of the vegetable hydroponic nutrient solution of the nutrient according to claim 1 containing organic carbon, it is characterised in that：Institute
Stating organic carbon nutrient is 0.5~0.8 part of liquid organic carbon.
5. the preparation method of the vegetable hydroponic nutrient solution of the nutrient according to claim 1 containing organic carbon, it is characterised in that：Institute
Stating organic carbon nutrient is 10.0~16.0 parts of organic carbon liquid manure.
6. the preparation method of the vegetable hydroponic nutrient solution of the nutrient according to claim 1 containing organic carbon, it is characterised in that：Institute
The mass fraction for stating each component is：0.15 part of calcium nitrate, 0.30 part of potassium nitrate, 0.02 part of potassium dihydrogen phosphate, 0.15 part of magnesium sulfate,
0.040 part of sodium chloride, 0.030 part of ferrous sulfate, 0.003 part of boric acid, 0.002 part of manganese sulfate, 0.0001 part of copper sulphate, zinc sulfate
0.0002 part, 0.5 part of liquid organic carbon, 1000 parts of water；Dissolved oxygen content 6.0mg/L.
7. the preparation method of the vegetable hydroponic nutrient solution of the nutrient according to claim 1 containing organic carbon, it is characterised in that：Institute
The mass fraction for stating each component is：0.20 part of calcium nitrate, 0.40 part of potassium nitrate, 0.04 part of potassium dihydrogen phosphate, 0.20 part of magnesium sulfate,
0.040 part of sodium chloride, 0.030 part of ferrous sulfate, 0.003 part of boric acid, 0.002 part of manganese sulfate, 0.0001 part of copper sulphate, zinc sulfate
0.0002 part, 0.8 part of liquid organic carbon, 1000 parts of water；Dissolved oxygen content 6.0mg/L.
8. the preparation method of the vegetable hydroponic nutrient solution of the nutrient according to claim 1 containing organic carbon, it is characterised in that：Institute
The mass fraction for stating each component is：0.16 part of calcium nitrate, 0.32 part of potassium nitrate, 0.024 part of potassium dihydrogen phosphate, magnesium sulfate 0.16
Part, 0.040 part of sodium chloride, 0.030 part of ferrous sulfate, 0.003 part of boric acid, 0.002 part of manganese sulfate, 0.0001 part of copper sulphate, sulphur
0.0002 part of sour zinc, 11.2 parts of organic carbon liquid manure, 1000 parts of water；Dissolved oxygen content 6.5mg/L；The organic carbon liquid manure is with having
The 0.2% organic carbon bacterium solution for accounting for biogas slurry quality is added in the biogas slurry of machine matter content 2%, in the item that dissolved oxygen content is 1.5mg/L
It is obtained after being handled 13 days under part.
9. the preparation method of the vegetable hydroponic nutrient solution of the nutrient according to claim 1 containing organic carbon, it is characterised in that：Institute
The mass fraction for stating each component is：0.19 part of calcium nitrate, 0.38 part of potassium nitrate, 0.036 part of potassium dihydrogen phosphate, magnesium sulfate 0.19
Part, 0.040 part of sodium chloride, 0.030 part of ferrous sulfate, 0.003 part of boric acid, 0.002 part of manganese sulfate, 0.0001 part of copper sulphate, sulphur
0.0002 part of sour zinc, 14.8 parts of organic carbon liquid manure, 1000 parts of water；Dissolved oxygen content 7.5mg/L；The organic carbon liquid manure is with having
The 0.2% organic carbon bacterium solution for accounting for biogas slurry quality is added in the biogas slurry of machine matter content 1%, in the item that dissolved oxygen content is 2.5mg/L
It is obtained after being handled 12 days under part.
10. a kind of vegetables water of the nutrient containing organic carbon prepared by preparation method according to any one of claim 1 to 9
Cultivation nutrient fluid.
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| CN109627074A (en) * | 2019-01-10 | 2019-04-16 | 湖北大学 | A kind of celery water planting special nutrient fluid |
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