A kind of nutrient composition and its preparation for breeding water body later period algae culture
Method
Technical field
The invention belongs to technical field of aquaculture, and in particular to a kind of nutrition for breeding water body later period algae culture
Promotor composition and preparation method thereof.
Background technique
Algae is a kind of more original, ancient unicellular lower eukaryote.Algae is mainly aquatic, no vascular bundle, green containing leaf in vivo
The substances such as element, lutein and carrotene, can pass through photosynthesis absorbing carbon dioxide and salt.The huge number of algae,
It is generally divided into Cyanophyta, Euglenophyta, Chrysophyta, Pyrrhophyta, Chlorophyta, Phaeophyta, Rhodophyta etc..Algae is mainly grown in water
In, it enriches and is flowed in slow water in nutriment, when sunny, water temperature is higher, algae is easily bred, to will cause algae
Class mass propagation, the wawter bloom phenomenon of water quality deterioration.The content of algae also can to the aesthetic index of water body, as water colour, transparency,
Sense of taste etc. influences certain chemical balances in the surface water due to the respiration and photosynthesis of algae.The excessive multiplication of algae
Can cause certain burden to water body, but algae also can purifying water body, algae has the ability for absorbing heavy metal in sewage,
Water body using algae repairing heavy metal pollution has been that numerous research has shown that there is efficient, low consumption, environmental protection.
There is the phenomenon that cultivation object and algae commensalism, algae usually in aquaculture industry, pool or other water bodys
On the one hand the growth of class influences the growth of cultivation body, on the other hand can affect to the health status of water body.Algae
There is important adjustment effect to the environment of breeding water body, be the basis for building water body good water colour and transparency, is to adjust water body
The important participant of dissolved oxygen, nutritive salt, as primary producer, in the substance circulation and energy flow of water ecosystem
It plays an important role.It can be seen that algae culture is to have supported the important means of aquatic animal in breeding water body.How cultivation is cultivated
The type and content of Measures of Algae in Water Body is one of the key factor supported the direct embodiment of water, and be related to cultivation success or failure.But
It is in the breeding water body later period, the organic matter of water body accumulation is more, the decline of phosphorus source content, and the balance between nutrient is broken again, out
Now a possibility that falling algae, is increasing, and water temperature is also gradually reduced, and certain difficulty occurs in the maintenance of algae.But the prior art is most
The characteristics of ignoring this stage water body, whole year take a nutrition composition formula, later period water body are caused to be unable to maintain that, when phenomena such as falling algae
There is generation, brings risk to the later period of cultivation.
Summary of the invention
For the technical problem more than solving, the present invention provides a kind of nutrient for breeding water body later period algae culture
Composition, the nutrient composition is according to the characteristics of the breeding water body later period and nutritional need of the algae in this period, quickly
Increase the source N, P, C, K in water, correct the balance between water body each element, promotes algae to be able to maintain that in the cultivation later period certain
Quantity, avoids algae rapid decline, and anti-water-stop body aging, thin, stable water body guarantee the fast-growth that body is cultivated in water body.
The object of the present invention is to provide a kind of nutrient compositions for breeding water body later period algae culture.
It is a further object of the present invention to provide a kind of above-mentioned nutrient compositions for breeding water body later period algae culture
Preparation method.
Provided by the present invention for the nutrient composition of breeding water body later period algae culture, including following weight percent
Raw material:
Ferment organic fertilizer 6~18%;
Humic acid 53~68%;
Monoammonium phosphate 5~13%;
Glucose 8~18%;
Potassium chloride 7~16%.
In the breeding process, certain period is presented in algae, and in different cultivation periods, the nutriment in water body occurs
Variation, in the later period of breeding water body, usually the 10-12 month, algae is in the savings nutriment that have passed through early stage, rapid growth,
After the steady growth that have passed through mid-term, after the later period for reaching breeding water body, algae enters decline phase, if in decline phase
Cannot in time and reasonable nutritional supplementation, algae will be presented large-scale rapid decline, thus influence the stabilization of water body with
And cultivate object in water body and lack nutriment and oxygen, huge adverse effect is caused to cultivation object and water body.The present inventor
Above-mentioned technical solution is researched and proposed by long-term theory and practice, provides carbon, nitrogen, phosphorus, potassium element in the feed, and protect
The weight ratio for demonstrate,proving C:N:P:K is 100~106:8~11:2~4:0.2~0.5, only in such range, after cultivation
The algae of phase can obtain sufficient nutrient and slow down the decline of algae to promote the photosynthesis of algae, maintain algae
Quantity, it is anti-water-stop body aging, thin, stablize water body, corrects the balance of each element in water body.
Preferably, the nutrient composition for breeding water body later period algae culture, including following weight percent
The raw material of ratio:
Ferment organic fertilizer 10~15%;
Humic acid 55~60%;
Monoammonium phosphate 8~12%;
Glucose 10~15%;
Potassium chloride 8~12%.
Preferably, the nutrient composition for breeding water body later period algae culture, including following weight percent
The raw material of ratio:
Ferment organic fertilizer 10%;
Humic acid 60%;
Monoammonium phosphate 10%;
Glucose 10%;
Potassium chloride 10%.
Provided by the present invention for the nutrient composition of breeding water body later period algae culture, according to the algal culture later period
Feature, algae are obviously slowed down in cultivation later period, the speed of growth, are increased the demand of potassium element, therefore the present invention is being directed to
The algae for cultivating the later period, increases the content of potassium element, by the control of N:C:P:K ratio in suitable range, to guarantee that algae is being supported
Grow the later period can delaying senility speed, promote algae to continue photosynthesis, maintain the stabilization of Measures of Algae in Water Body quantity.
Preferably, the water content of the fermentation organic fertilizer is lower than 30%.
Preferably, the pH of the fermentation organic fertilizer is 5.5~8.5.The pH value of nutrient composition will affect the pH of water body,
PH can cause charge on alga cells film to change in water body, to influence absorption of the algae to nutriment, influence generation
The activity of enzyme during thanking.Algal culture later period, growth and accretion rate drastically reduce, nutrient combination provided by the invention
The pH of fermentation organic fertilizer can provide relatively suitable living environment to the algae in cultivation later period, slow down 5.5~8.5 in object
The decline speed of algae, guarantees the stabilization of water body.
Preferably, in the nutrient composition C:N:P:K weight ratio be 100~106:8~11:2~4:0.2~
0.5。
Preferably, the humic acid is humic acid.Humic acid provided by the invention has stronger activity, humic acid molecule
It measures moderate, containing more acid functional groups, there is the ability of buffering soda acid variation, adjust the pH value of water body.
The present invention provides the preparation method of the above-mentioned nutrient composition for breeding water body later period algae culture, including
Following steps:
(1) the complete fermentation organic fertilizer of fermentation is taken, is crushed, then humic acid is added in sieving, be stirred to uniform, obtain
To mixture;
(2) monoammonium phosphate, glucose and potassium chloride are added in the mixture that step (1) obtains, stir evenly, obtains
The nutrient composition for breeding water body later period algae culture.
Preferably, in step (1), the complete fermentation organic fertilizer of fermentation is taken, crushes, crosses 80~100 meshes.
Preferably, in step (1), the speed of the stirring is 30~40r/min, and the mixing time is 10~20min.
Preferably, in step (2), the speed of the stirring is 20~30r/min, and the mixing time is 20~30min.
The preparation method of nutrient composition provided by the invention is easy to operate, obtained nutrient composition user
Just, it is convenient for industrialization promotion.
The above-mentioned nutrient composition for breeding water body later period algae culture provided by the invention can be applied to water
It produces in cultivation.
It can be applied to aquaculture provided by the present invention for the nutrient composition in algal culture later period, cultivating algae
While class, harm can't be brought to water body, can anti-water-stop body aging and excessively it is thin, be conducive to cultivate object stabilization
Growth.
The invention has the benefit that
Provided by the present invention for the nutrient composition of breeding water body later period algae culture, according to the breeding water body later period
The characteristics of nutriment in water body and algae are slow in aquifer cultivation late growth, and become feeble and die fireballing feature, close in time
Algae supplement N:C:P:K nutrient composition is given to reason, algae is continued in the cultivation later period and normally carries out photosynthesis,
Slow down the decline speed of algae, maintain Measures of Algae in Water Body quantity, avoids the aging of water body and excessively thin, be continuously in water body and support
It grows object and stable environment and natural bait is provided, guarantee the sustainable growth of cultivation object.
Provided by the present invention for the nutrient composition of breeding water body later period algae culture, can quickly increase in water
N, the balance of each element in water body is corrected in the source C, P, K, promotes the photosynthesis of algae, and water body algae amount is maintained to stablize anti-water-stop body
Water body is stablized in aging, is conducive to cultivate object persistence growth.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment 1
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 6%;
Humic acid 68%;
Monoammonium phosphate 11%;
Glucose 8%;
Potassium chloride 7%;
The water content of the fermentation organic fertilizer is lower than 30%, pH 5.5, the total arsenic≤15mg/kg of heavy metal, total cadmium≤3mg/
Kg, total mercury≤2mg/kg;Humic acid is humic acid.
The preparation method of above-mentioned nutrient composition, comprising the following steps:
(1) the complete fermentation organic fertilizer of fermentation is taken, is crushed, 80 sieves is crossed, humic acid is then added, is stirred to uniform,
The speed of the stirring is 30r/min, and the mixing time is 20min, obtains mixture;
(2) monoammonium phosphate, glucose and potassium chloride are added in the mixture that step (1) obtains, with stirring for 20r/min
Speed stirring 30min is mixed, the nutrient composition for being used for breeding water body later period algae culture is obtained.
Embodiment 2
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 17%;
Humic acid 53%;
Monoammonium phosphate 5%;
Glucose 18%;
Potassium chloride 7%;
The water content of the fermentation organic fertilizer is lower than 30%, pH 6, the total arsenic≤15mg/kg of heavy metal, total cadmium≤3mg/
Kg, total mercury≤2mg/kg;Humic acid is humic acid.
The preparation method of above-mentioned nutrient composition, comprising the following steps:
(1) the complete fermentation organic fertilizer of fermentation is taken, is crushed, 100 sieves is crossed, humic acid is then added, is stirred to uniform,
The speed of the stirring is 40r/min, and the mixing time is 10min, obtains mixture;
(2) monoammonium phosphate, glucose and potassium chloride are added in the mixture that step (1) obtains, with stirring for 30r/min
Speed stirring 20min is mixed, the nutrient composition for being used for breeding water body later period algae culture is obtained.
Embodiment 3
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 10%;
Humic acid 53%;
Monoammonium phosphate 13%;
Glucose 8%;
Potassium chloride 16%;
The water content of the fermentation organic fertilizer is lower than 30%, pH 7, the total arsenic≤15mg/kg of heavy metal, total cadmium≤3mg/
Kg, total mercury≤2mg/kg;Humic acid is humic acid.
That the preparation method is the same as that of Example 1 is identical for above-mentioned nutrient composition.
Embodiment 4
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 18%;
Humic acid 55%;
Monoammonium phosphate 7%;
Glucose 10%;
Potassium chloride 10%;
The water content of the fermentation organic fertilizer is lower than 30%, pH 7, the total arsenic≤15mg/kg of heavy metal, total cadmium≤3mg/
Kg, total mercury≤2mg/kg;Humic acid is humic acid.
That the preparation method is the same as that of Example 1 is identical for above-mentioned nutrient composition.
Embodiment 5
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 10%;
Humic acid 60%;
Monoammonium phosphate 12%;
Glucose 10%;
Potassium chloride 8%;It is described fermentation organic fertilizer water content be lower than 30%, pH 8.5, the total arsenic≤15mg/kg of heavy metal,
Total cadmium≤3mg/kg, total mercury≤2mg/kg;Humic acid is humic acid.
That the preparation method is the same as that of Example 1 is identical for above-mentioned nutrient composition.
Embodiment 6
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 15%;
Humic acid 55%;
Monoammonium phosphate 8%;
Glucose 10%;
The water content of organic fertilizer of fermenting described in potassium chloride 12% is lower than 30%, pH 8, the total arsenic≤15mg/kg of heavy metal, total
Cadmium≤3mg/kg, total mercury≤2mg/kg;Humic acid is humic acid.
That the preparation method is the same as that of Example 1 is identical for above-mentioned nutrient composition.
Embodiment 7
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 10%;
Humic acid 55%;
Monoammonium phosphate 10%;
Glucose 15%;
Potassium chloride 10%;
The water content of the fermentation organic fertilizer is lower than 30%, pH 7.5, the total arsenic≤15mg/kg of heavy metal, total cadmium≤3mg/
Kg, total mercury≤2mg/kg;Humic acid is humic acid.
That the preparation method is the same as that of Example 1 is identical for above-mentioned nutrient composition.
Embodiment 8
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 10%;
Humic acid 60%;
Monoammonium phosphate 10%;
Glucose 10%;
Potassium chloride 10%;
The water content of the fermentation organic fertilizer is lower than 30%, pH 7, the total arsenic≤15mg/kg of heavy metal, total cadmium≤3mg/
Kg, total mercury≤2mg/kg;Humic acid is humic acid.
That the preparation method is the same as that of Example 1 is identical for above-mentioned nutrient composition.
Comparative example 1
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 30%;
Humic acid 30%;
Monoammonium phosphate 20%;
Glucose 20%;
The water content of the fermentation organic fertilizer is lower than 30%, pH 3, the total arsenic≤15mg/kg of heavy metal, total cadmium≤3mg/
Kg, total mercury≤2mg/kg;Humic acid is humic acid.
The preparation method of above-mentioned nutrient composition, comprising the following steps:
(1) the complete fermentation organic fertilizer of fermentation is taken, is crushed, 80 sieves is crossed, humic acid is then added, is stirred to uniform,
The speed of the stirring is 30r/min, and the mixing time is 20min, obtains mixture;
(2) monoammonium phosphate and glucose are added in the mixture that step (1) obtains, with the mixing speed of 20r/min
30min is stirred, the nutrient composition for being used for breeding water body later period algae culture is obtained.
Comparative example 2
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 5%;
Humic acid 80%;
Monoammonium phosphate 5%;
Glucose 5%;
Potassium chloride 5%;
The water content of the fermentation organic fertilizer is lower than 30%, pH 3, the total arsenic≤15mg/kg of heavy metal, total cadmium≤3mg/
Kg, total mercury≤2mg/kg;Humic acid is humic acid.
The preparation method of above-mentioned nutrient composition is same as Example 1.
Comparative example 3
A kind of nutrient composition for breeding water body later period algae culture, the raw material including following weight percent:
Ferment organic fertilizer 15%;
Humic acid 40%;
Monoammonium phosphate 20%;
Glucose 20%;
Potassium chloride 5%;
The water content of the fermentation organic fertilizer is lower than 30%, pH 3, the total arsenic≤15mg/kg of heavy metal, total cadmium≤3mg/
Kg, total mercury≤2mg/kg;Humic acid is humic acid.
The preparation method of above-mentioned nutrient composition is same as Example 1.
Test example
Test site: fishing ground is supported by Nanchang County, selects 6 mouthfuls of pools, every mouthful of 20 mu of pool surface product.
Test method: the nutrient that embodiment 2,6,8 and comparative example 1-3 obtain is used for above-mentioned fishing ground, every mouthful of pool is thrown
Put same amount of nutrient composition.
Start on October 11st, 1.2018 to launch nutrient composition, starts to adopt after three days transparent before and after water detection is launched
Degree, pH value, the content of dissolved oxygen and chlorophyll a, the results are shown in Table 1.
Table 1 is to launch front and back water body testing result
* pH value is measured as morning 9:00, afternoon 4:00 or so;Morning and afternoon pH value changes, and illustrates that algae and water is grown
It is vigorous, it is running water, the variation of morning and afternoon pH value is small, illustrates that algae and water growth and breeding is inactive, water body activity is not high.
From the results shown in Table 1, after embodiment 2, embodiment 6,8 use of embodiment, transparency, dissolved oxygen, Ye Lv
Plain a content remains unchanged substantially, and less, but biggish variation has occurred in control group its relevant parameter, is embodied in transparency for variation
It increases, dissolved oxygen amount decline, Chlorophyll-a Content decline illustrates that algae nutrition is not caught up with, and decline relatively becomes, and influences water body and stablizes, unfavorable
It is cultivated in the later period, brings down the risks such as algae.
2. statistics launches the growing state of preceding the latter moon algae, statistical result is shown in Table 2.
2 nutrient composition of table launches front and back algal grown situation
* "+" indicates few;" ++ " indicates more;" +++ " indicates more.
From the results shown in Table 2: after embodiment 2, embodiment 6,8 use of embodiment, effective algae remains unchanged, and becomes
Change less, cyanobacteria is still controllable;But a possibility that control group algae phase change is big, beneficial algae grand trend under being in, Blue-green Algae Fast Growth adds
Greatly, it is unfavorable for the stabilization of water body, there is algae etc. to the cultivation later period and endanger risk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.