CN109452211A - A kind of method of mixed breed cray in rice field - Google Patents
A kind of method of mixed breed cray in rice field Download PDFInfo
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- CN109452211A CN109452211A CN201811647779.0A CN201811647779A CN109452211A CN 109452211 A CN109452211 A CN 109452211A CN 201811647779 A CN201811647779 A CN 201811647779A CN 109452211 A CN109452211 A CN 109452211A
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 100
- 235000009566 rice Nutrition 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 21
- 240000007594 Oryza sativa Species 0.000 title description 2
- 241000209094 Oryza Species 0.000 claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 241000238557 Decapoda Species 0.000 claims abstract description 36
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 239000003337 fertilizer Substances 0.000 claims abstract description 13
- 239000002068 microbial inoculum Substances 0.000 claims abstract description 11
- 241000196324 Embryophyta Species 0.000 claims abstract description 8
- 238000005286 illumination Methods 0.000 claims abstract description 6
- 238000003973 irrigation Methods 0.000 claims abstract description 6
- 230000002262 irrigation Effects 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 230000001954 sterilising effect Effects 0.000 claims abstract description 6
- 238000009423 ventilation Methods 0.000 claims abstract description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 18
- 241000894006 Bacteria Species 0.000 claims description 10
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 10
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 10
- 210000003608 fece Anatomy 0.000 claims description 10
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 10
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 10
- 239000000292 calcium oxide Substances 0.000 claims description 9
- 235000012255 calcium oxide Nutrition 0.000 claims description 9
- 241000238565 lobster Species 0.000 claims description 7
- 239000010871 livestock manure Substances 0.000 claims description 6
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 5
- 241000108664 Nitrobacteria Species 0.000 claims description 5
- 241000283080 Proboscidea <mammal> Species 0.000 claims description 5
- 241000235342 Saccharomycetes Species 0.000 claims description 5
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 5
- 201000010099 disease Diseases 0.000 claims description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 5
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical group ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 5
- 230000000366 juvenile effect Effects 0.000 claims description 5
- 239000004310 lactic acid Substances 0.000 claims description 5
- 235000014655 lactic acid Nutrition 0.000 claims description 5
- 230000000243 photosynthetic effect Effects 0.000 claims description 5
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 4
- 239000000645 desinfectant Substances 0.000 claims description 4
- 244000144972 livestock Species 0.000 claims description 4
- 244000144977 poultry Species 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 241000272525 Anas platyrhynchos Species 0.000 claims description 3
- 241000287828 Gallus gallus Species 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims 1
- 235000011941 Tilia x europaea Nutrition 0.000 claims 1
- 239000004571 lime Substances 0.000 claims 1
- 238000003306 harvesting Methods 0.000 abstract description 5
- 230000036642 wellbeing Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 1
- 238000009360 aquaculture Methods 0.000 description 7
- 244000144974 aquaculture Species 0.000 description 7
- 241000238017 Astacoidea Species 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 241000209504 Poaceae Species 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241000238030 Procambarus clarkii Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 210000000349 chromosome Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000010153 self-pollination Effects 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- 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
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Fertilizers (AREA)
- Fodder In General (AREA)
Abstract
The invention discloses a kind of methods of mixed breed cray in rice field, the described method includes: (1) selection ventilation, the field that illumination is sufficient, water source is pollution-free, irrigation is convenient, water retention property is good, excavate isolating trenches and ditch in field, on ridge and intake-outlet is respectively provided with anti-escape network；(2) it puts before seedling to paddy field drainage, disinfection, diversion recharge, secondary sterilization, measurement and adjusts pH value and dissolved oxygen amount；(3) it applies fertilizer before rice transplanting, it is flat to weed paddy-field harrow for site preparation of deep ploughing after applying；Start mid-May to plant rice seedling, controls spacing in the rows and line-spacing；(4) cray shrimp seedling is launched；(5) after shrimp seedling is launched, when the daily morning 6~8, an organic feed is respectively fed when afternoon 16~18；(6) rice field top dressing uses inorganic fertilizer；(7) it refreshes the water periodically, sterilize and measure and adjust pH value and dissolved oxygen amount, at the shrimp stage using microbial inoculum regulating water quality until fishing harvests.It is dual-purpose that cultural method of the invention realizes a field, and cray and rice bumper harvests substantially increase economic well-being of workers and staff.
Description
Technical field
The invention belongs to aquaculture fields, and in particular to a kind of method of mixed breed cray in rice field.
Background technique
Cray (scientific name: Procambarus clarkii) is also referred to as Procambius clarkii, red crayfish and freshwater crayfish,
Adaptability is extremely wide, has wider suitable growth temperature, is 10~30 DEG C of Shi Junke normal growth and developments in water temperature.Also it is resistant to high
Warm severe cold can tolerate 40 DEG C or more of high temperature, can also be safely overwintering in the case where temperature is -14 DEG C of situations below.Cray growth
Rapidly, at suitable temperature and sufficient bait supply situation, the cultivation through 2 wheat harvesting periods can reach sexal maturity, and reach
Commercial sized prawn specification, general hero shrimp growth are faster than female shrimp, and commercial sized prawn specification is also big compared with female shrimp.It is the same with many shellfish, it is small
The growth of lobster is also along with shell, when shell, general searching things concealed, as in water plant clump or under plant leaf blade.After shell most
Big body weight evolution is up to 95%, and general shell 11 times are that can reach sexal maturity, and sexal maturity individual can continue husking growth.Its
Service life is not grown, and about 1 year.But in the case where deprivation of food, temperature are lower and more arid, the service life is at most up to 2~3 years.
Rice (scientific name: Oryza sativa) be in one kind and Oryza of draft Oryza as grain it is main most
Long one kind, also known as Asian type cultivated rice, could also say that rice in simple terms.Rice is annual, gramineae plant, single
Cotyledon, property happiness is warm and humid, and there are about 1m high when mature, and leaf is elongated, there are about 50~100cm long, wide about 2~2.5cm.Spending for rice is non-
Often small, when blooming, arch can be presented in main spray, and little Hua, most of self-pollination can be all held between end of the branch down 30~50mm
And it bears seeds, referred to as spike of rice.The size of the general grain of rice is in 5~12mm long, 2~3mm thickness.It is annual gramineae plant, 24
Chromosome.Rice is pyrophilous, how wet, short-day, requires soil not tight, and rice soil is best.Seedling germination minimum temperature 10
It is~12 DEG C, 28~32 DEG C most suitable.Average daily 20 DEG C of tillering stage or more, 30 DEG C of Spike development thermophilic or so；Low temperature makes branch stalk and grain husk flower point
Change and extends.25~35 DEG C of thermophilic of heading.It blooms most 30 DEG C of thermophilic or so, lower than 20 DEG C or higher than 40 DEG C, is fertilized adversely effected.
Every formation 1kg paddy about needs 500~800kg of water.
Cray and the growing environment of rice are so similar, provide environmental basis for its symbiosis.It is supported in cray in China
Initial stage is grown, a variety of aquaculture models such as rice field, pond, river and plant-type lake are taken, in practice it has proved that, rice field is freshwater crayfish
Optimum growh habitat.China In Middle And Lower Reaches of Changjiang River rice field area is wide, and water area resource is abundant, technical economic analysis hair
It reaches, thus paddy field aquaculture cray most development potentiality.The yield of paddy field aquaculture cray in the prior art is not generally high, and
Application fertilizer and cray feed arrangement it is unreasonable be easy to cause rice and cray can not symbiosis, larva of crayfish large area is dead
The problem of dying.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of method of mixed breed cray in rice field, promotes small dragon
The growth for not influencing rice while the fast-growth of shrimp, realizes planting industry and the combination of aquaculture, make cray and
Benign ecological cogeneration system is formed between rice, improves the utilization rate of resource, and it is dual-purpose to realize a field, cray and rice
Bumper harvests, substantially increase economic well-being of workers and staff.
The present invention is achieved by the following technical solutions:
A kind of method of mixed breed cray in rice field, comprising the following steps:
Step 1) selection ventilation, the field that illumination is sufficient, water source is pollution-free, irrigation is convenient, water retention property is good, in field away from
Isolating trenches are excavated at 1~2m of ridge, 1~2m of furrow width, 50~80cm of ditch depth excavate sphere of movements for the elephants shape ditch in field, and ditch is wide by 40
~80cm, deep 20~30cm, excavation area account for the 15~20% of the rice field gross area, are respectively provided on ridge with intake-outlet anti-escape
Net；
Step 2) empties the remaining water in the rice field dug in 15~20 days before putting seedling, is disappeared using disinfectant to rice field
Poison, then diversion recharge rice field, controlling height of water level in rice field is 30~40cm, then carries out secondary sterilization with quick lime, disinfection
It measures after the completion and adjusts the pH value in rice field and dissolved oxygen amount；
Before step 3) plants rice seedling, 200~300kg of feces of livestock and poultry is applied per acre, separately adds calcium superphosphate 30kg, Shi Houshen
It ploughs 20~30cm and carries out site preparation, it is flat sufficiently to weed paddy-field harrow；Start mid-May to plant rice seedling, control spacing in the rows is 8~15cm, row
Away from 20~25cm；
Step 4) selects disease-free cray shrimp seedling without wound, the long 0.8~1.0cm of body, in the water body being thrown into paddy fields, per acre
Injected volume is 1.5~2.5 ten thousand tails；
After step 5) cray shrimp seedling is launched, when the daily morning 6~8, an organic feed is respectively fed when afternoon 16~18,
Juvenile prawn stage feedstuff feeding amount be cray weight 15~20%, at shrimp stage feedstuff feeding amount be cray weight 30~
40%；
The top dressing of step 6) rice field uses inorganic fertilizer, applies 2~5kg of inorganic fertilizer per acre；
A water is changed within step 7) every 3~5 days, quantity of exchanged water is 20~30% of water in rice field；Splash within every 20~25 days one
Secondary quick lime carries out disinfection processing to water body, and the amount of splashing is 10~15kg/ mus；It measures and adjusts in a rice field within every 2~3 days
PH value and dissolved oxygen amount, maintaining pH value is between 7~8, and dissolved oxygen amount is 6~8mg/L；Microbial inoculum regulating water quality is used at the shrimp stage；
Step 8) cray can reach listing specification by raising in 2 months, and lobster basket can be used and caught, after fishing
Large area changes water, and repeatedly step 4) is to step 7) later, until fishing next time or rice are mature.
Preferably, the step 2) disinfectant is hypochlorous acid or sodium hypochlorite.
Preferably, the step 3) feces of livestock and poultry is pig manure, chicken manure or duck excrement.
Preferably, the ratio of feed morning feeding volume and feeding volume in afternoon is 4:6 in step 5).
Preferably, the step 6) inorganic fertilizer is urea or calcium superphosphate.
Preferably, the step 7) microbial inoculum includes photosynthetic bacteria, lactic acid bacteria, bacillus, nitrobacteria, saccharomycete.
Beneficial effects of the present invention are as follows:
1, it using isolating trenches and ditch is excavated in rice field, rationally controls spacing in the rows and line-spacing carries out rice transplanting, cray is allowed to have
Abundant living environment, while test result shows that cray cultivation does not influence the normal growth of rice, realizes that a field is dual-purpose, it is small
Lobster and rice bumper harvests, greatly improve economic well-being of workers and staff.
2, cray is fed using organic feed, while applies the inorganic fertilizers such as urea or calcium superphosphate and cultivates rice, promoted
The growth for not influencing rice while the fast-growth of cray, realizes planting industry and the combination of aquaculture, makes small dragon
Benign ecological cogeneration system is formed between shrimp and rice, improves the utilization rate of resource.
Specific embodiment
The present invention will be further described combined with specific embodiments below.
Embodiment 1
A kind of method of mixed breed cray in rice field, comprising the following steps:
(1) selection ventilation, the field that illumination is sufficient, water source is pollution-free, irrigation is convenient, water retention property is good, away from field in field
Isolating trenches are excavated at the 1m of the ridge, furrow width 1m, ditch depth 50cm excavate sphere of movements for the elephants shape ditch in field, and the wide 40cm in ditch, depth 20cm are opened
It digs area and accounts for the 15% of the rice field gross area, on ridge and intake-outlet is respectively provided with anti-escape network.
(2) remaining water in the rice field dug was emptied in 15 days before putting seedling, using hypochlorous acid or sodium hypochlorite to rice
Field carries out disinfection, then diversion recharge rice field, and controlling height of water level in rice field is 30cm, then carries out secondary sterilization with quick lime,
It measures after the completion of disinfection and adjusts the pH value in rice field and dissolved oxygen amount.
(3) before planting rice seedling, pig manure 200kg is applied per acre, and separately plus calcium superphosphate 30kg, the 20cm that deep ploughs after applying carry out whole
It is flat sufficiently to weed paddy-field harrow for ground；Start mid-May to plant rice seedling, control spacing in the rows is 8cm, line-spacing 20cm.
(4) it selects disease-free cray shrimp seedling without wound, the long 0.8~1.0cm of body, in the water body being thrown into paddy fields, launches per acre
Amount is 1.5 ten thousand tails.
(5) after cray shrimp seedling is launched, when the daily morning 6~8, an organic feed is respectively fed when afternoon 16~18, on
The ratio of noon feeding volume and feeding volume in afternoon is 4:6, and juvenile prawn stage feedstuff feeding amount is the 15% of cray weight, at the shrimp stage
Feedstuff feeding amount is the 30% of cray weight.
(6) rice field top dressing uses inorganic fertilizer, applies urea 2kg per acre.
(7) water is changed within every 3 days, quantity of exchanged water is 20% of water in rice field；Quick lime be spilled once to water body within every 20 days
Carry out disinfection processing, and the amount of splashing is 10kg/ mus；It measures and adjusts pH value and dissolved oxygen amount in a rice field within every 2 days, maintain pH value
Between 7~8, dissolved oxygen amount is 6~8mg/L；Microbial inoculum regulating water quality is used at the shrimp stage；
The microbial inoculum includes photosynthetic bacteria, lactic acid bacteria, bacillus, nitrobacteria, saccharomycete.
Step 8) cray can reach listing specification by raising in 2 months, and lobster basket can be used and caught, after fishing
Large area changes water, repeats (4) to (7) later, until fishing next time or rice are mature.
Embodiment 2
A kind of method of mixed breed cray in rice field, comprising the following steps:
(1) selection ventilation, the field that illumination is sufficient, water source is pollution-free, irrigation is convenient, water retention property is good, away from field in field
Isolating trenches are excavated at the 2m of the ridge, furrow width 2m, ditch depth 80cm excavate sphere of movements for the elephants shape ditch in field, and the wide 80cm in ditch, depth 30cm are opened
It digs area and accounts for the 20% of the rice field gross area, on ridge and intake-outlet is respectively provided with anti-escape network.
(2) remaining water in the rice field dug was emptied in 20 days before putting seedling, using hypochlorous acid or sodium hypochlorite to rice
Field carries out disinfection, then diversion recharge rice field, and controlling height of water level in rice field is 40cm, then carries out secondary sterilization with quick lime,
It measures after the completion of disinfection and adjusts the pH value in rice field and dissolved oxygen amount.
(3) before planting rice seedling, chicken manure 300kg is applied per acre, and separately plus calcium superphosphate 30kg, the 30cm that deep ploughs after applying carry out whole
It is flat sufficiently to weed paddy-field harrow for ground；Start mid-May to plant rice seedling, control spacing in the rows is 15cm, line-spacing 25cm.
(4) it selects disease-free cray shrimp seedling without wound, the long 0.8~1.0cm of body, in the water body being thrown into paddy fields, launches per acre
Amount is 2.5 ten thousand tails.
(5) after cray shrimp seedling is launched, when the daily morning 6~8, an organic feed is respectively fed when afternoon 16~18, on
The ratio of noon feeding volume and feeding volume in afternoon is 4:6, and juvenile prawn stage feedstuff feeding amount is the 20% of cray weight, at the shrimp stage
Feedstuff feeding amount is the 40% of cray weight.
(6) rice field top dressing uses inorganic fertilizer, applies calcium superphosphate 5kg per acre.
(7) water is changed within every 5 days, quantity of exchanged water is 30% of water in rice field；Quick lime be spilled once to water body within every 25 days
Carry out disinfection processing, and the amount of splashing is 15kg/ mus；It measures and adjusts pH value and dissolved oxygen amount in a rice field within every 3 days, maintain pH value
Between 7~8, dissolved oxygen amount is 6~8mg/L；Microbial inoculum regulating water quality is used at the shrimp stage；
The microbial inoculum includes photosynthetic bacteria, lactic acid bacteria, bacillus, nitrobacteria, saccharomycete.
Step 8) cray can reach listing specification by raising in 2 months, and lobster basket can be used and caught, after fishing
Large area changes water, repeats (4) to (7) later, until fishing next time or rice are mature.
Embodiment 3
A kind of method of mixed breed cray in rice field, comprising the following steps:
(1) selection ventilation, the field that illumination is sufficient, water source is pollution-free, irrigation is convenient, water retention property is good, away from field in field
Isolating trenches are excavated at the 1.5m of the ridge, furrow width 1.5m, ditch depth 60cm excavate sphere of movements for the elephants shape ditch, the wide 60cm in ditch, depth in field
25cm, excavation area account for the 18% of the rice field gross area, and on ridge and intake-outlet is respectively provided with anti-escape network.
(2) remaining water in the rice field dug was emptied in 20 days before putting seedling, using hypochlorous acid or sodium hypochlorite to rice
Field carries out disinfection, then diversion recharge rice field, and controlling height of water level in rice field is 40cm, then carries out secondary sterilization with quick lime,
It measures after the completion of disinfection and adjusts the pH value in rice field and dissolved oxygen amount.
(3) before planting rice seedling, duck excrement 250kg is applied per acre, and separately plus calcium superphosphate 30kg, the 25cm that deep ploughs after applying carry out whole
It is flat sufficiently to weed paddy-field harrow for ground；Start mid-May to plant rice seedling, control spacing in the rows is 10cm, line-spacing 25cm.
(4) it selects disease-free cray shrimp seedling without wound, the long 0.8~1.0cm of body, in the water body being thrown into paddy fields, launches per acre
Amount is 20,000 tails.
(5) after cray shrimp seedling is launched, when the daily morning 6~8, an organic feed is respectively fed when afternoon 16~18, on
The ratio of noon feeding volume and feeding volume in afternoon is 4:6, and juvenile prawn stage feedstuff feeding amount is the 18% of cray weight, at the shrimp stage
Feedstuff feeding amount is the 35% of cray weight.
(6) rice field top dressing uses inorganic fertilizer, applies calcium superphosphate 3kg per acre.
(7) water is changed within every 4 days, quantity of exchanged water is 25% of water in rice field；Quick lime be spilled once to water body within every 20 days
Carry out disinfection processing, and the amount of splashing is 13kg/ mus；It measures and adjusts pH value and dissolved oxygen amount in a rice field within every 3 days, maintain pH value
Between 7~8, dissolved oxygen amount is 6~8mg/L；Microbial inoculum regulating water quality is used at the shrimp stage；
The microbial inoculum includes photosynthetic bacteria, lactic acid bacteria, bacillus, nitrobacteria, saccharomycete.
Step 8) cray can reach listing specification by raising in 2 months, and lobster basket can be used and caught, after fishing
Large area changes water, repeats (4) to (7) later, until fishing next time or rice are mature.
Test case 1
The first tenday period of a month in May cultivate cray using the method for Examples 1 to 3, launch the cray of the long 0.8~1.0cm of body per acre
10,000 tail of shrimp seedling does not limit the time of cray fishing, after 3 months, the cray cultivate the method for Examples 1 to 3 and current
Paddy growth situation is counted, and the results are shown in Table 1.
Cray and paddy growth condition survey in 1 rice field of table
By 1 data of table it is found that the survival rate of cray is up to 93% or more, and the rice is doing well, without exception and sick
Insect pest illustrates that cultural method of the invention does not influence the growth of rice while promoting the fast-growth of cray, realizes
The combination of planting industry and aquaculture makes to form benign ecological cogeneration system between cray and rice, improves resource
Utilization rate.
Claims (6)
1. a kind of method of mixed breed cray in rice field, which comprises the following steps:
Step 1) selection ventilation, the field that illumination is sufficient, water source is pollution-free, irrigation is convenient, water retention property is good, away from ridge in field
Isolating trenches are excavated at 1~2m, 1~2m of furrow width, 50~80cm of ditch depth excavate sphere of movements for the elephants shape ditch in field, and ditch is wide by 40~
80cm, deep 20~30cm, excavation area account for the 15~20% of the rice field gross area, and on ridge and intake-outlet is respectively provided with anti-escape network；
Step 2) empties the remaining water in the rice field dug in 15~20 days before putting seedling, is carried out disinfection using disinfectant to rice field, so
Diversion recharge rice field afterwards, controlling height of water level in rice field is 30~40cm, then carries out secondary sterilization with quick lime, after the completion of disinfection
It measures and adjusts the pH value in rice field and dissolved oxygen amount；
Before step 3) plants rice seedling, 200~300kg of feces of livestock and poultry is applied per acre, separately plus calcium superphosphate 30kg, deep ploughs 20 after applying
~30cm carries out site preparation, and it is flat sufficiently to weed paddy-field harrow；Start mid-May to plant rice seedling, control spacing in the rows is 8~15cm, line-spacing 20
~25cm；
Step 4) selects disease-free cray shrimp seedling without wound, the long 0.8~1.0cm of body, in the water body being thrown into paddy fields, launches per acre
Amount is 1.5~2.5 ten thousand tails；
After step 5) cray shrimp seedling is launched, when the daily morning 6~8, an organic feed, juvenile prawn are respectively fed when afternoon 16~18
Stage feedstuff feeding amount be cray weight 15~20%, at shrimp stage feedstuff feeding amount be cray weight 30~
40%；
The top dressing of step 6) rice field uses inorganic fertilizer, applies 2~5kg of inorganic fertilizer per acre；
A water is changed within step 7) every 3~5 days, quantity of exchanged water is 20~30% of water in rice field；It spilled once life within every 20~25 days
Lime carries out disinfection processing to water body, and the amount of splashing is 10~15kg/ mus；It measures and adjusts the pH value in a rice field within every 2~3 days
And dissolved oxygen amount, maintaining pH value is between 7~8, and dissolved oxygen amount is 6~8mg/L；Microbial inoculum regulating water quality is used at the shrimp stage；
Step 8) cray can reach listing specification by raising in 2 months, and lobster basket can be used and caught, big face after fishing
Product changes water, and repeatedly step 4) is to step 7) later, until fishing next time or rice are mature.
2. the method for mixed breed cray in a kind of rice field according to claim 1, which is characterized in that step 2) is described
Disinfectant is hypochlorous acid or sodium hypochlorite.
3. the method for mixed breed cray in a kind of rice field according to claim 1, which is characterized in that step 3) is described
Feces of livestock and poultry is pig manure, chicken manure or duck excrement.
4. the method for mixed breed cray in a kind of rice field according to claim 1, which is characterized in that raised in step 5)
The ratio for expecting morning feeding volume and feeding volume in afternoon is 4:6.
5. the method for mixed breed cray in a kind of rice field according to claim 1, which is characterized in that step 6) is described
Inorganic fertilizer is urea or calcium superphosphate.
6. the method for mixed breed cray in a kind of rice field according to claim 1, which is characterized in that step 7) is described
Microbial inoculum includes photosynthetic bacteria, lactic acid bacteria, bacillus, nitrobacteria, saccharomycete.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110122227A (en) * | 2019-06-03 | 2019-08-16 | 安庆市义云农业有限责任公司 | A method of standardization rice cray mixed breeding |
| CN110178773A (en) * | 2019-05-27 | 2019-08-30 | 安徽大桥湾生态农业科技有限公司 | A kind of rice field shrimp farming method of science |
| CN111056880A (en) * | 2019-12-13 | 2020-04-24 | 安徽辉隆集团五禾生态肥业有限公司 | Special fertilizer for shrimp and rice co-farming and preparation method thereof |
| CN113197036A (en) * | 2021-04-27 | 2021-08-03 | 海南归耘田农业科技有限公司 | Rice field, crayfish and loach coupled breeding method |
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| CN106942107A (en) * | 2017-03-02 | 2017-07-14 | 南充市高坪区权舰龙虾养殖专业合作社 | A kind of cultural method of rice field ecology cray |
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| CN110178773A (en) * | 2019-05-27 | 2019-08-30 | 安徽大桥湾生态农业科技有限公司 | A kind of rice field shrimp farming method of science |
| CN110122227A (en) * | 2019-06-03 | 2019-08-16 | 安庆市义云农业有限责任公司 | A method of standardization rice cray mixed breeding |
| CN111056880A (en) * | 2019-12-13 | 2020-04-24 | 安徽辉隆集团五禾生态肥业有限公司 | Special fertilizer for shrimp and rice co-farming and preparation method thereof |
| CN113197036A (en) * | 2021-04-27 | 2021-08-03 | 海南归耘田农业科技有限公司 | Rice field, crayfish and loach coupled breeding method |
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