CN110896916B - Method for controlling harmful algae stable ecosystem by aquaculture water - Google Patents
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 241000195493 Cryptophyta Species 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000009360 aquaculture Methods 0.000 title claims abstract description 31
- 244000144974 aquaculture Species 0.000 title claims abstract description 31
- 239000003337 fertilizer Substances 0.000 claims abstract description 53
- 241000195649 Chlorella <Chlorellales> Species 0.000 claims abstract description 41
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- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 15
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- 238000001514 detection method Methods 0.000 claims description 10
- 241000195620 Euglena Species 0.000 claims description 7
- 230000003111 delayed effect Effects 0.000 claims description 7
- 241000199914 Dinophyceae Species 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 abstract description 16
- 230000000243 photosynthetic effect Effects 0.000 abstract description 14
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Fertilizers (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
A method for controlling harmful algae to stabilize an ecosystem in aquaculture water relates to the technical field of water diversion of aquaculture algae. The method aims to solve the problems that a large amount of harmful algae in the existing aquaculture water body are bred, the water quality and the environment seriously pollute the aquaculture failure, and a large amount of chemical disinfection products are used to cause irreversible damage to the environment. The method comprises the following steps: no outbreak occurs; adding algae balance essence; adding full-effect chlorella, oriented green algae fertilizer and diatom vitality element; adding full-effect chlorella, oriented green algae fertilizer and oriented diatom fertilizer. The method 2 comprises the following steps: has exploded; adding detoxication algae-culturing essence, super-effective probiotics and concentrated photosynthetic bacteria; adding detoxication algae-culturing essence, super-effective probiotics and concentrated photosynthetic bacteria; adding full-effect chlorella, oriented green algae fertilizer and diatom vitality element; adding full-effect chlorella, algae power and directional diatom fertilizer. The invention can continuously maintain the water quality index and stable algae phase, improve the culture yield and quality, and has obvious effect of adjusting the water quality and environmental protection. The invention is suitable for controlling a harmful algae stable ecological system in the culture water body.
Description
Technical Field
The invention relates to the technical field of water transfer of aquaculture algae.
Background
In recent years, the rapid development of industrial and agricultural economy brings about load overload to the environment, particularly discharges a large amount of organic matters into a water body, and the eutrophication of the aquaculture water environment is serious. In order to pursue high return and high profit, culturists carry out high-density and high-bait-casting intensive culture technology, and the single yield is high. The method has the advantages that the culture economic benefit is improved, a large amount of feed is added, high-density culture metabolites are accumulated to cause more and more organic pollutants in the pond, the endogenous pollution of the pond is aggravated, and the substances, nutrient salts such as nitrogen and phosphorus generated after decomposition and the organic pollutants can cause the deterioration of the culture environment of the pond to different degrees, so that the water quality is worsened, the growth of culture varieties is influenced, and even the culture failure is caused.
Exogenous pollution to aquaculture water is serious, and some water contains heavy metals, pesticides, chemicals and harmful organisms, so that the exogenous 'old water' is injected into pond fertilizer water, a large amount of pollutants can be brought to the aquaculture water, or harmful algae can be bred in a large amount, the aquaculture risk is increased, meanwhile, the quality of aquaculture products is reduced, and even some aquaculture products can remain toxins. The harmful algae in aquaculture mainly refers to algae which are unfavorable for production of cultivated species and even produce algal toxins, such as: microcystis, Euglena haemoglobin, Euglena haemolytica, etc. Because of serious water body pollution and eutrophication, the method aims to control the influence of harmful algae on the quality of cultivated species and cause irreversible damage to aquatic ecosystems by using chemical disinfection products. In addition, during the growth process of algae and cultivated species, nutrition is consumed, metabolites which are unfavorable to the algae and cultivated species are accumulated, residual bait and excrement are accumulated, the whole water environment is changed, if the nutrition cannot be supplemented in time, the metabolites cannot be removed in time, the advantages of the algae are lost, and another algae suitable for the conditions can be used as a substitute. In cultivation, harmful algae such as filamentous algae, blue-green algae, dinoflagellate and euglena start to evolve slowly after a period of time, so that beneficial algae species and required nutrients need to be supplemented timely.
Disclosure of Invention
The invention aims to solve the problems that a large amount of harmful algae in the existing aquaculture water body are bred, the water quality and environment seriously pollute the aquaculture failure, and a large amount of chemical disinfection products are used to cause irreversible damage to the environment, and provides a method for controlling a harmful algae stable ecosystem by the aquaculture water body.
The method for controlling harmful algae to stabilize the ecological system of the aquaculture water body comprises the following steps:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if the harmful algae in the water body to be treated do not form dominant algae, 0.25 kg/mu.m of algae balance element is added into the water body to be treated on the 1 st day;
3-5 liters of full-effect chlorella per mu per meter, 0.1-0.5 kilogram of oriented green alga fertilizer per mu per meter and 0.2-0.5 kilogram of diatom activator per mu per meter are added at 8-10 points on a sunny day on the 2 nd day;
and (3) adding 1-3 liters of full-effect chlorella per mu per meter, 0.1-0.3 kilogram of oriented green alga fertilizer per mu per meter and 0.1-0.3 kilogram of oriented diatom fertilizer per mu per meter at 8-10 points on a sunny day on the 4 th day, thus completing the method for controlling the harmful alga stable ecosystem by the culture water body.
The method for controlling harmful algae to stabilize the ecological system of the aquaculture water body comprises the following steps:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if harmful algae seeds in the water body to be treated explode, 0.25-0.5 kg/mu.m of detoxification phycoerythrin, 0.2-0.5 kg/mu.m of super-effective probiotics and 1-5L/mu.m of concentrated photosynthetic bacteria are added into the water body to be treated on the 1 st day;
adding 0.25 kg of detoxification phycoerythrin per mu per meter, 0.2-0.5 kg of super-effective probiotics per mu per meter and 1-5L of concentrated photosynthetic bacteria per mu per meter on day 2;
3-5 liters of full-effect chlorella per mu per meter, 0.1-0.3 kilogram of oriented green alga fertilizer per mu per meter and 0.2-0.5 kilogram of diatom activator per mu per meter are added at 8-10 points on a sunny day on the 3 rd day;
and (3) adding 1-3 liters of full-effect chlorella per mu per meter, 0.1-0.5 kilogram of algae power per mu per meter and 0.1-0.3 kilogram of oriented diatom fertilizer per mu per meter at 8-10 points on a sunny day on the 5 th day, thus completing the method for controlling the harmful algae stable ecosystem by the culture water body.
The method for controlling harmful algae to stabilize the ecological system of the aquaculture water body comprises the following steps:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if the water body to be treated has green mud moss, 0.5-1 kg/mu-m of sodium humate and 0.25-0.5 kg/mu-m of algae balance element are added into the water body to be treated on the 1 st day;
3-5 liters of full-effect chlorella per mu per meter, 0.1-0.3 kilogram of oriented green alga fertilizer per mu per meter and 0.2-0.5 kilogram of diatom activator per mu per meter are added at 8-10 points on a sunny day on the 2 nd day;
and (3) adding 1-3 liters of full-effect chlorella per mu per meter, 0.1-0.5 kilogram of algae power per mu per meter and 0.1-0.3 kilogram of oriented diatom fertilizer per mu per meter at 8-10 points of a sunny day on the 4 th day, thus completing the method for controlling the harmful algae stable ecosystem by the culture water body.
The invention has the advantages that:
1. according to the invention, beneficial algae species are introduced according to the indexes of the water body of the aquatic ecosystem, corresponding nutrition is supplemented, and the outbreak of harmful algae is controlled by utilizing the ecological occupation principle. When harmful algae are erupted in an aquatic ecosystem, the survival conditions of the harmful algae are changed by a physical method, the harmful algae are withered and aged, the harmful algae are decomposed by matching with detoxifying algae-culturing elements, algae balancing elements, super-benefit bacteria and concentrated photosynthetic bacteria, then the full-effect chlorella and the diatom vitality elements which are easy to culture, are beneficial to culture varieties and are harmless to the ecological environment are selected according to culture varieties, the chlorella and the diatom occupy the ecological niche of a pond, the dead and aged algae are decomposed by periodically supplementing the full-effect chlorella and the diatom vitality elements, the super-benefit bacteria and the concentrated photosynthetic bacteria, the water quality index and the algae phase stability are continuously maintained, and the culture yield and quality are improved.
2. According to the invention, according to the environment condition of the culture water body and the requirement of culture varieties, algae species (beneficial algae species) which are easy to culture and beneficial to the culture varieties are selected to become dominant species in the water body, and the beneficial algae long-term stable ecological system is managed and maintained. The invention can avoid uncontrollable pollution to the culture water body caused by excessive use of organic fertilizer and chemical fertilizer, establish an ecological culture mode and culture green pollution-free water products. Beneficial algae species are different from harmful algae species, and the harmful algae contain toxins, so that the toxins are accumulated in cultured animals and harm is caused to human health. The beneficial algae species do not contain algal toxins, generate a large amount of nutrient substances and substances for promoting the immunity and growth of the cultured animals through photosynthesis, improve the quality and the yield of the cultured animals, and are beneficial to the health of human bodies. The invention belongs to an ecological friendly technology and has obvious yield benefit, economic benefit and ecological benefit.
3. The invention can be widely applied to aquaculture or water environment protection, and has the characteristics of obvious water quality adjusting effect, ecological environmental protection and no secondary pollution.
The invention is suitable for controlling a harmful algae stable ecological system in the culture water body.
Detailed Description
The technical solution of the present invention is not limited to the following specific embodiments, but includes any combination of the specific embodiments.
The first embodiment is as follows: the method for controlling the harmful algae stable ecosystem by the aquaculture water body comprises the following steps:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if the harmful algae in the water body to be treated do not form dominant algae, 0.25 kg/mu.m of algae balance element is added into the water body to be treated on the 1 st day;
3-5 liters of full-effect chlorella per mu per meter, 0.1-0.5 kilogram of oriented green alga fertilizer per mu per meter and 0.2-0.5 kilogram of diatom activator per mu per meter are added at 8-10 points on a sunny day on the 2 nd day;
and (3) adding 1-3 liters of full-effect chlorella per mu per meter, 0.1-0.3 kilogram of oriented green alga fertilizer per mu per meter and 0.1-0.3 kilogram of oriented diatom fertilizer per mu per meter at 8-10 points on a sunny day on the 4 th day, thus completing the method for controlling the harmful alga stable ecosystem by the culture water body.
After the implementation mode is completed, the later maintenance is continued according to the change of the water quality until the culture is finished.
In the present embodiment, the algae balance essence, the full-effect chlorella, the oriented green algae fertilizer, the diatom vitality essence and the oriented diatom fertilizer are all purchased from Tianjin algae-moistening Biotechnology Co.
The second embodiment is as follows: the difference between the first embodiment and the second embodiment is that the water body indexes of the stabilized good water standard in the first step are as follows: dissolved oxygen is 5-12 mg/L, ammonia nitrogen is less than 0.2mg/L, nitrite is less than 0.1mg/L, pH is 7.5-8.8, alkalinity is 150-250 mg/L, hardness is more than 200mg/L, and algae phase takes small green algae without algae toxins or diatoms without algae toxins as dominant algae species. Other steps and parameters are the same as those in the first embodiment.
The third concrete implementation mode: the difference between the present embodiment and the second embodiment is that the dominant algae species refers to microcystic algae without algal toxins or diatoms without algal toxins accounting for 50% -70% of the total number of algae species. Other steps and parameters are the same as those in the second embodiment.
The fourth concrete implementation mode: in a second embodiment, the microcystic algae or diatoms are beneficial algae species. Other steps and parameters are the same as those in the second embodiment.
The fifth concrete implementation mode: the difference between the present embodiment and one of the first to the fourth embodiments is that in the second step, the harmful algae species are one or more of cyanobacteria which produce algal toxins, euglena which produce algal toxins, cryptophyceae which produce algal toxins, and dinoflagellate which produce algal toxins. Other steps and parameters are the same as in one of the first to fourth embodiments.
The sixth specific implementation mode: the difference between this embodiment and one of the first to fifth embodiments is that, in the case of a cloudy day on the 2 nd day, the adding time is delayed until 4 consecutive days in the future are all sunny days in the second step. Other steps and parameters are the same as those in one of the first to fifth embodiments.
The seventh embodiment: the difference between the first embodiment and the sixth embodiment is that the diatom activator needs to be soaked in water for 2 days before being added. Other steps and parameters are the same as those in one of the first to sixth embodiments.
The specific implementation mode is eight: the difference between the embodiment and one of the first to seventh embodiments is that 4 liters of full-effect chlorella, 0.2 kg of oriented green alga fertilizer and 0.3 kg of diatom activator are added at 9 points on the sunny day of the 2 nd day. Other steps and parameters are the same as those in one of the first to seventh embodiments.
The specific implementation method nine: the difference between the embodiment and one of the first to eighth embodiments is that 2 liters/mu.m of full-effect chlorella, 0.2 kg/mu.m of oriented green algae fertilizer and 0.2 kg/mu.m of oriented diatom fertilizer are added at 9 points on the 4 th sunny day. Other steps and parameters are the same as those in one to eight of the embodiments.
The detailed implementation mode is ten: the method for controlling the harmful algae stable ecosystem by the aquaculture water body comprises the following steps:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if harmful algae seeds in the water body to be treated explode, 0.25-0.5 kg/mu.m of detoxification phycoerythrin, 0.2-0.5 kg/mu.m of super-effective probiotics and 1-5L/mu.m of concentrated photosynthetic bacteria are added into the water body to be treated on the 1 st day;
adding 0.25 kg of detoxification phycoerythrin per mu per meter, 0.2-0.5 kg of super-effective probiotics per mu per meter and 1-5L of concentrated photosynthetic bacteria per mu per meter on day 2;
3-5 liters of full-effect chlorella per mu per meter, 0.1-0.3 kilogram of oriented green alga fertilizer per mu per meter and 0.2-0.5 kilogram of diatom activator per mu per meter are added at 8-10 points on a sunny day on the 3 rd day;
and (3) adding 1-3 liters of full-effect chlorella per mu per meter, 0.1-0.5 kilogram of algae power per mu per meter and 0.1-0.3 kilogram of oriented diatom fertilizer per mu per meter at 8-10 points on a sunny day on the 5 th day, thus completing the method for controlling the harmful algae stable ecosystem by the culture water body.
After the implementation mode is completed, the later maintenance is continued according to the change of the water quality until the culture is finished.
In the present embodiment, the detoxification phycoerythrin, super-effective probiotic, concentrated photosynthetic bacteria, full-effective chlorella, oriented green algae fertilizer, diatom vitality element, algae power and oriented diatom fertilizer are purchased from Tianjin algae-moistening Biotechnology Limited.
In the 3 rd sunny day in the embodiment, if a cloudy day is encountered, the adding time is delayed until the 3 consecutive days are all sunny days in the future.
In the embodiment, the oriented green alga fertilizer and the diatom vitality element need to be soaked in water for 2 days before being added.
The concrete implementation mode eleven: the tenth difference between this embodiment and the specific embodiment is that the water body indexes of the stable good water standard in the first step are as follows: dissolved oxygen is 5-12 mg/L, ammonia nitrogen is less than 0.2mg/L, nitrite is less than 0.1mg/L, pH is 7.5-8.8, alkalinity is 150-250 mg/L, hardness is more than 200mg/L, and algae phase takes small green algae without algae toxins or diatoms without algae toxins as dominant algae species. Other steps and parameters are the same as those in the embodiment.
The specific implementation mode twelve: this embodiment differs from the eleventh embodiment in that the microcystin-free chlorella or the microcystin-free diatom are both beneficial algal species. Other steps and parameters are the same as those in the eleventh embodiment.
The specific implementation mode is thirteen: this embodiment differs from the tenth to twelfth embodiment in that the harmful algal species in the second step is algal toxin-producing cyanobacteria, algal toxin-producing euglena, algal toxin-producing crypthecodinium, or algal toxin-producing dinoflagellate. Other steps and parameters are the same as those in one of the tenth to twelfth embodiments.
The specific implementation mode is fourteen: the difference between the embodiment and one of the tenth to thirteen specific embodiments is that 0.3 kg/mu.m of detoxification phycoerythrin, 0.3 kg/mu.m of super-effective probiotics and 2 l/mu.m of concentrated photosynthetic bacteria are added into the water body to be treated in the second step. Other steps and parameters are the same as those in one of the tenth to thirteenth embodiments.
The concrete implementation mode is fifteen: the difference between the embodiment and one of the tenth to the fourteenth embodiment is that 0.25 kg/mu.m of detoxication phycoerythrin, 0.3 kg/mu.m of super-effective probiotics and 2L/mu.m of concentrated photosynthetic bacteria are added on the 2 nd day. Other steps and parameters are the same as one of ten to fourteen embodiments.
The specific implementation mode is sixteen: the difference between the embodiment and one of the tenth to fifteen of the specific embodiment is that 4 liters of full-effect chlorella vulgaris per mu per meter, 0.2 kg of oriented green alga fertilizer per mu per meter and 0.3 kg of diatom activator per mu per meter are added at 9 points on a sunny day on the 3 rd day. Other steps and parameters are the same as those in one of the tenth to fifteenth embodiments.
Seventeenth embodiment: the difference between the embodiment and one of the tenth to the sixteenth embodiments is that 2 liters/mu.m of full-effect chlorella, 0.3 kg/mu.m of algae power and 0.2 kg/mu.m of oriented diatom fertilizer are added at 9 points on a sunny day on the 5 th day. Other steps and parameters are the same as those of one of the tenth to sixteenth embodiments.
The specific implementation mode is eighteen: the method for controlling the harmful algae stable ecosystem by the aquaculture water body comprises the following steps:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if the water body to be treated has green mud moss, 0.5-1 kg/mu-m of sodium humate and 0.25-0.5 kg/mu-m of algae balance element are added into the water body to be treated on the 1 st day;
3-5 liters of full-effect chlorella per mu per meter, 0.1-0.3 kilogram of oriented green alga fertilizer per mu per meter and 0.2-0.5 kilogram of diatom activator per mu per meter are added at 8-10 points on a sunny day on the 2 nd day;
and (3) adding 1-3 liters of full-effect chlorella per mu per meter, 0.1-0.5 kilogram of algae power per mu per meter and 0.1-0.3 kilogram of oriented diatom fertilizer per mu per meter at 8-10 points of a sunny day on the 4 th day, thus completing the method for controlling the harmful algae stable ecosystem by the culture water body.
The purpose of adding the sodium humate in the second step of the embodiment is to reduce the illumination intensity of the water body, so that the photosynthesis of the moss in the green mud is weakened, the moss in the green mud can not grow normally and is withered, and then the moss in the green mud can be manually fished out.
In the present embodiment, the algae balance element, the full-effect chlorella, the oriented green algae fertilizer, the diatom vitality element, the algae power and the oriented diatom fertilizer are purchased from Tianjin algae-moistening biotechnology limited.
In the embodiment, in a sunny day 2, if a cloudy day is encountered, the adding time is delayed until 3 consecutive days are all sunny days in the future.
In the embodiment, the oriented green alga fertilizer and the diatom vitality element need to be soaked in water for 2 days before being added.
The detailed embodiment is nineteen: the present embodiment is different from the specific embodiment eighteen in that the occurrence of the moss in the second step means a filamentous algae outbreak harmful to cultivation. Other steps and parameters are the same as those in the eighteenth embodiment.
In the present embodiment, the filamentous algae harmful to cultivation is spirogyra, cladophora or dictyozoa.
The specific implementation mode twenty: the difference between the embodiment and the eighteen or nineteenth embodiment is that 0.8 kg/mu.m of sodium humate and 0.4 kg/mu.m of algae balance essence are added into the water body to be treated on the 1 st day in the second step. Other steps and parameters are the same as those in eighteen or nineteen embodiments.
The specific implementation mode is twenty one: the difference between the embodiment and one of eighteen to twenty of the specific embodiments is that 4 liters of full-effect chlorella vulgaris per mu per meter, 0.2 kg of oriented green alga fertilizer per mu per meter and 0.4 kg of diatom activator per mu per meter are added at 9 points on a sunny day on the 2 nd day. Other steps and parameters are the same as in one of eighteen to twenty embodiments.
Specific embodiment twenty-two: the difference between the embodiment and one of eighteen to twenty-one of the specific embodiments is that 2 liters/mu.m of full-effect chlorella is added at 9 points on a sunny day on the 4 th day, the algae power is 0.3 kg/mu.m, and the oriented diatom fertilizer is 0.2 kg/mu.m. Other steps and parameters are the same as those of the eighteenth to twenty-one embodiments.
The beneficial effects of the present invention are demonstrated by the following examples:
example 1
The method for controlling harmful algae to stabilize the ecosystem by the aquaculture water body is characterized by comprising the following steps of:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if the harmful algae in the water body to be treated do not form dominant algae, 0.25 kg/mu.m of algae balance element is added into the water body to be treated on the 1 st day;
4 liters of full-effect chlorella, 0.3 kg of oriented green alga fertilizer and 0.4 kg of diatom activity element are added at 9 points on a sunny day on the 2 nd day;
and (3) adding 2 liters of full-effect chlorella per mu per meter, 0.2 kg of oriented green alga fertilizer per mu per meter and 0.2 kg of oriented diatom fertilizer per mu per meter at 9 points on a sunny day on the 4 th day, thus completing the method for controlling the harmful algae stable ecosystem by the culture water body.
In the embodiment, the water to be treated comes from the Xinghua crab pond, and the water body indexes of the stabilized water standard in the step one are as follows: dissolved oxygen is 5-12 mg/L, ammonia nitrogen is less than 0.2mg/L, nitrite is less than 0.1mg/L, pH is 7.5-8.8, alkalinity is 150-250 mg/L, hardness is more than 200mg/L, and algae phase takes small green algae without algae toxins or diatoms without algae toxins as dominant algae species.
In the second step of this example, the harmful algal species are cyanobacteria producing algal toxins, euglena producing algal toxins and cryptophyceae producing algal toxins.
In the case of sunny day 2, if a cloudy day is encountered, the adding time is delayed until 4 consecutive days in the future are all sunny days.
In this example, the directional chlorella fertilizer and diatom vitality element need to be soaked in water for 2 days before being added.
After the implementation mode is completed, the later maintenance is continued according to the change of the water quality until the culture is finished.
By adopting the method in the embodiment, after water body treatment, ammonia nitrogen is less than 0.2mg/L, sub-salt is less than 0.1mg/L, dissolved oxygen is less than or equal to 5mg/L and less than or equal to 12mg/L, and the pH value is less than or equal to 6.5 and less than or equal to 8.5. After the water body is treated, the green algae chlorella, scenedesmus, diatom small ring algae and navicula are detected by a microscope, and account for more than 70 percent.
Example 2
The method for controlling harmful algae to stabilize the ecological system of the aquaculture water body comprises the following steps:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if harmful algae seeds in the water body to be treated explode, 0.25-0.5 kg/mu.m of detoxification phycoerythrin, 0.2-0.5 kg/mu.m of super-effective probiotics and 1-5L/mu.m of concentrated photosynthetic bacteria are added into the water body to be treated on the 1 st day;
adding 0.25 kg of detoxification phycoerythrin per mu per meter, 0.2-0.5 kg of super-effective probiotics per mu per meter and 1-5L of concentrated photosynthetic bacteria per mu per meter on day 2;
adding 3-5 liters of full-effect chlorella per mu per meter, 0.1-0.3 kilogram of oriented green algae fertilizer per mu per meter and 0.2-0.5 kilogram of diatom activator per mu per meter at 8-10 points on a sunny day on the 3 rd day;
and (3) adding 1-3 liters of full-effect chlorella per mu per meter, 0.1-0.5 kilogram of algae power per mu per meter and 0.1-0.3 kilogram of oriented diatom fertilizer per mu per meter at 8-10 points on a sunny day on the 5 th day, thus finishing the method for controlling the harmful algae stable ecosystem by the culture water body.
After the cultivation is finished in the embodiment, the later maintenance is continued according to the change of the water quality until the cultivation is finished.
In this example, the detoxification phycoerythrin, super effective probiotic, concentrated photosynthetic bacteria, full effective chlorella, directed green algae fertilizer, diatom vitality element, algae power and directed diatom fertilizer were purchased from Tianjin algae-moistening Biotechnology, Inc.
In the case of a sunny day 3, if a cloudy day is encountered, the adding time is delayed until all 3 consecutive days are sunny days in the future.
In this example, the directional chlorella fertilizer and diatom vitality element need to be soaked in water for 2 days before being added.
In the first step of this embodiment, the water body indexes of the stable good water standard are as follows: dissolved oxygen is 5-12 mg/L, ammonia nitrogen is less than 0.2mg/L, nitrite is less than 0.1mg/L, pH is 7.5-8.8, alkalinity is 150-250 mg/L, hardness is more than 200mg/L, and algae phase takes small green algae without algae toxins or diatoms without algae toxins as dominant algae species.
In the second step of this example, the harmful algal species are cyanobacteria that produce algal toxins.
In the embodiment, the water to be treated comes from Hubei farmers, No. 9/20 in 2017: at 8 am, the transparency of the cloudy downdraft opening is 15-20 cm, the pH value is 8.1, the dissolved oxygen is 3.0mg/L, the blue algae is the main component, and the chlamydomonas is. The fish floats at 5 am until 8 am.
By the method in this example, algal blooms of No. 9/month 21, No. 9/month 22, No. 9/month 23, and No. 9/month 24 were dispersed in a gradually dissolved state, and in a solution state, respectively.
After water body treatment, the ammonia nitrogen is less than 0.2mg/L, the sub-salt is less than 0.1mg/L, the dissolved oxygen is less than or equal to 5mg/L and less than or equal to 12mg/L, and the pH value is less than or equal to 6.5 and less than or equal to 8.5.
No. 24 in 2017, 9 and 24, the dinoflagellate is almost absent, the quantity of diatoms and chlorella is increased, 8.7mg/L of instrument with water color and transparency of about 30 cm is detected by an instrument with a wind gap on the middle noon, and a fish feeding table is arranged when the dissolved oxygen is high in the middle noon.
Example 3
The method for controlling harmful algae to stabilize the ecological system of the aquaculture water body comprises the following steps:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if the water body to be treated has green mud moss, 0.5-1 kg/mu-m of sodium humate and 0.25-0.5 kg/mu-m of algae balance element are added into the water body to be treated on the 1 st day;
3-5 liters of full-effect chlorella per mu per meter, 0.1-0.3 kilogram of oriented green alga fertilizer per mu per meter and 0.2-0.5 kilogram of diatom activator per mu per meter are added at 8-10 points on a sunny day on the 2 nd day;
and (3) adding 1-3 liters of full-effect chlorella per mu per meter, 0.1-0.5 kilogram of algae power per mu per meter and 0.1-0.3 kilogram of oriented diatom fertilizer per mu per meter at 8-10 points of a sunny day on the 4 th day, thus completing the method for controlling the harmful algae stable ecosystem by the culture water body.
The purpose of adding sodium humate in the second step of the embodiment is to reduce the illumination intensity of the water body and make the green mud moss atrophy.
In the present embodiment, the algae balance element, the full-effect chlorella, the oriented green algae fertilizer, the diatom vitality element, the algae power and the oriented diatom fertilizer are purchased from Tianjin algae-moistening biotechnology limited.
In the embodiment, in a sunny day 2, if a cloudy day is encountered, the adding time is delayed until 3 consecutive days are all sunny days in the future.
In the embodiment, the oriented green alga fertilizer and the diatom vitality element need to be soaked in water for 2 days before being added.
The occurrence of the green mud moss in the second step in this embodiment means the outbreak of filamentous algae harmful to cultivation; the filamentous algae harmful to culture is spirogyra, cladophora or dictyococcus.
In the embodiment, the water to be treated comes from the crayfish pond in Hubei, and a large amount of mud moss appears in 2019 in 1 month and 19 days.
By adopting the method in the embodiment, in 2019, 20-21 days 1 month, the photosynthesis of the green mud moss is weakened, the green mud moss cannot grow normally and shrinks, and then the green mud moss can be manually fished out; in 2019, 1 month and 25 days, the water quality of the crayfish pond is effectively treated, and crayfish seedlings can be normally thrown in. After water body treatment, the ammonia nitrogen is less than 0.2mg/L, the sub-salt is less than 0.1mg/L, the dissolved oxygen is less than or equal to 5mg/L and less than or equal to 12mg/L, and the pH value is less than or equal to 6.5 and less than or equal to 8.5. The algae phase after water body treatment mainly comprises small green algae and diatom.
Claims (4)
1. The method for controlling harmful algae to stabilize the ecosystem by the aquaculture water body is characterized by comprising the following steps of:
detecting the content, pH value, alkalinity and hardness of ammonia nitrogen, nitrite and dissolved oxygen in the water body, simultaneously detecting algae phases in the water body by a microscope, and taking the water body with the detection result not meeting the stable good water standard as the water body to be treated;
secondly, if the harmful algae in the water body to be treated do not form dominant algae, 0.25 kg/mu.m of algae balance element is added into the water body to be treated on the 1 st day;
adding 3-5 liters of full-effect chlorella per mu per meter, 0.1-0.5 kilogram of oriented green algae fertilizer per mu per meter and 0.2-0.5 kilogram of diatom activator per mu per meter at 8-10 points on a sunny day on the 2 nd day;
adding 1-3 liters of full-effect chlorella per mu per meter, 0.1-0.3 kg of oriented green alga fertilizer per mu per meter and 0.1-0.3 kg of oriented diatom fertilizer per mu per meter at 8-10 points on a sunny day on the 4 th day, and finishing the method for controlling the harmful algae stable ecosystem by the culture water body;
wherein the dominant algae species in the second step are microcystin-free small green algae or algae toxin-free diatoms, and the number of the microcystin-free small green algae or algae toxin-free diatoms accounts for 50-70% of the total number of the algae species;
in the second step, the harmful algae are one or more of blue algae generating algae toxins, euglena generating algae toxins, cryptophyceae generating algae toxins and dinoflagellates generating algae toxins.
2. The method for controlling a harmful algae-stabilizing ecosystem by using aquaculture water as claimed in claim 1, wherein the water body indexes of the stabilized good water standard in the first step are as follows: dissolved oxygen is 5-12 mg/L, ammonia nitrogen is less than 0.2mg/L, nitrite is less than 0.1mg/L, pH is 7.5-8.8, alkalinity is 150-250 mg/L, hardness is more than 200mg/L, and algae phase takes small green algae without algae toxins or diatoms without algae toxins as dominant algae species.
3. The method for controlling a harmful algae stable ecosystem by using aquaculture water as claimed in claim 1, wherein in the 2 nd sunny day, if a cloudy day is encountered, the adding time is delayed until 4 consecutive days in the future are all sunny days.
4. The method for controlling harmful algae stable ecosystem of aquaculture water according to claim 1, wherein the diatom vitality elements are used after being soaked in water for 2 days before being added.
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