The breeding method of eel grass seedling
Technical field
The embodiment of the present invention relates to a kind of cultivation of plants method, is specifically related to a kind of breeding method of eel grass seedling.
Background technology
Eel grass (Vallisneria natans) is heavy this plant of pasture and water of Hydrocharctaceae Vallisneria, find to have now 5 kinds, comprise eel grass, close tooth eel grass, thorn eel grass, Asia eel grass and large eel grass, eel grass is permitted can survive in eurypalynous water body in China, and water environment is had wider tolerance range.Eel grass often is used as food resource and is used for propagating artificially fish, shrimps and crab, also being usually used in addition the Shui nationality views and admires, eel grass is as high submerged plant, one of primary producer in aquatic ecosystem, the ability that has purification of water quality and slow down Nutrient release, algae is had allelopathy, can suppress the Growth and reproduction of algae.
Lake, Reservoir Eutrophication problem are serious in recent years, the Water Environment In Lakes problem of formation take nitrogen and phosphorus pollution as essential characteristic, concentrate on the lake and reservoir eutrophication serious, the water and soil resources exploitation excessively, ecological water is tied up in a large number, river is withered, the section in wetlands degradation, the city of flowing through is subject to severe contamination, and bio-diversity reduces, and aquatic ecosystem is subject to heavy damage.The Water Ecological Recovery technology is a kind of improvement body eutrophication problem forefront technology at present, and wherein utilizing the submerged plant eel grass to carry out Water Ecological Recovery is one of key content in this type of technology.
In addition, raising along with people's living standard, the demand of amusement landscape water body constantly increases, a large amount of man-made lakes and Small-scale Landscape Water Bodies are applied in landscape construction, normal method by a large amount of planting aquatic plants, structure aquatic ecosystem, guarantee that water quality is steady in a long-term, wherein eel grass is one of main biomaterial.
At present the obtain manner of eel grass material has from river, lake, reservoir, culture pond and directly obtains, or by the mode that hibernaculum, seed, tissue are cultivated, indirectly obtain, for the artificial collection of the natural eel grass that can directly gather through long-term extensive style, wild resource is exhausted in a large number at present; And that the eel grass tissue culture technique exists cost is high, the limitation such as the cycle is long, operation requirements is high.Along with progressively the increasing sharply of maturation, engineering successful case of aquatic ecological technology, the increasing day by day of Technique Popularizing demand, the eel grass demand will present the blowout formula and increase, and the Availability of eel grass resource can't meet engineering application in the future at present.
Summary of the invention
The object of the invention is to solve the defect of above-mentioned prior art, the breeding method of the eel grass seedling that a kind of cost is low, the cycle is short is provided.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of breeding method of eel grass seedling comprises the following steps:
The arrangement field of growing seedlings: the described field of growing seedlings is comprised of at least one seedbed, seedbed is dug dark 8 to 10 centimetres, soil block is smashed, and every square metre of seedbed adds 0.3 to 0.5 kilogram of humus soil, stirs, seedbed is arranged smooth, then add water in the field of growing seedlings, controlling water depth is 1 to 2 centimetre, and bleaching powder is added to the water and carries out disinfection, control every square metre of seedbed and add 5 to 10 gram bleaching powder, disinfecting time 3 to 5 days;
Select seedling: select the eel grass of 15 to 20 centimetres of plant heights as seedling, reject withered old blade and root, put into sterilization pool and soak 6 to 10 minutes kinds, thimerosal in described sterilization pool is the liquor natrii hypochloritis of mass fraction 1%, described seedling is wild eel grass seedling preferably, wild eel grass seedling early growth is energetic, without insect pest;
Transplant seedling: seedling is transplanted on seedbed, every 3 to 5 strain seedlings are a root and stem of certain plants, the line-spacing of every root and stem of certain plants is 28 to 32 centimetres, the row distance is 28 to 32 centimetres, controlling the depth of water in seedbed is 8 to 12 centimetres, spray hormone combinations liquid on seedbed, the amount of described hormone combinations liquid is 0.1 liter of every square metre of seedbed spray, then cover film on seedling, keep water temperature 15 to 30 degree in seedbed, described hormone combinations liquid is to add the 6-benzyl aminoadenine of 15 to 20 milligrams and the formed solution of indole-3-acetic acid of 8 to 12 milligrams in every premium on currency; The eel grass seedling forms new plant by subterranean stem, and with seedling, connect together, division propagation refers to that the seedling that will naturally connect together separately forms independently plant, can promote so new rhizomatous growth, selecting every 3 to 5 strain seedlings is a root and stem of certain plants plantation, both can save workload, be beneficial to again rhizomatous growth;
Manage the field of growing seedlings: the water temperature of controlling the field of growing seedlings is 15 to 30 degree, the front 30 days seedbed depth of waters after the transplanting seedling are controlled at 8 to 12 centimetres, transplant seedling after 30 days the seedbed depth of water be controlled at 19 to 21 centimetres, controlling the pH value is 6 to 8, seedling is transplanted into grew seedlings field in the time of 48 to 52 days, the new eel grass seedling that forms by subterranean stem will grow to 10 centimetres of plant heights, the eel grass seedling density in seedbed be 250 to 300 strains/square metre;
Shift out seedling: the film that will cover on the eel grass seedling is removed, and adds water in seedbed, makes the depth of water reach 28 to 32 centimetres, kept 9 to 11 days, if during find that attachment and insect pest remove attachment and insect pest, seedling is shifted out the field of growing seedlings, namely obtain the eel grass seedling.
As optimal way of the present invention, in the breeding method of above-mentioned eel grass seedling, preferably, the soil property in the described field of growing seedlings is neutrality or slant acidity, and more preferably, the physical features in the field of growing seedlings is smooth, leeward on the sunny side, draining is good.
As optimal way of the present invention, in the breeding method of above-mentioned eel grass seedling, preferably, the length in the described field of growing seedlings is 30 to 40 meters, and width is 6 to 7 meters, and the field retaining degree of depth of growing seedlings is 40 to 50 centimetres, and the steel skeleton booth is adopted in the field of growing seedlings.
Effect of the present invention and advantage are as follows: the present invention utilizes the division propagation of eel grass self and raise seedling in greenhouse field to cultivate the eel grass seedling, energy amount reproduction eel grass seedling, and cost is low, and the eel grass survival rate is high, pollutes less, and insect pest is few, suits large area to popularize; It is required that method of the present invention has met four seasons of aquatic ecosystem structure, reparation, regulation and control, broken the season limit of eel grass plantation, overcome its tissue culture technique and had the shortcomings such as cost is high, the cycle is long, operation requirements is high, and optimized the form of construction work of eel grass in the Aquatic Ecosystem 2 systems engineering Xi.
Embodiment
according to one embodiment of present invention, the selection physical features is smooth, leeward facing south, draining is good, have abundant water resources, convenient transportation, soil property is fertile is the filling out as growing seedlings field of neutrality or slant acidity, the length in the described field of growing seedlings is 30 meters, width is 6 meters, the field retaining degree of depth of growing seedlings is 40 centimetres, the steel skeleton booth is adopted in the field of growing seedlings, seedbed is dug dark 8 centimetres, break up the clods, every square metre of seedbed adds 0.3 kilogram of humus soil, stir, seedbed is arranged smooth, then add water in seedbed, controlling water depth is 1 centimetre, bleaching powder is added to the water and carries out disinfection, control every square metre of seedbed and add 5 gram bleaching powder, disinfecting time 5 days, gather 2000 strain growth vigors strong, without insect pest, the eel grass that plant height is 15 centimetres, as seedling, is rejected withered old blade and root, puts into sterilization pool and soaks 6 minutes kinds, and the thimerosal in described sterilization pool is the liquor natrii hypochloritis of mass fraction 1%, seedling is transplanted on seedbed, every 3 strain seedlings are a root and stem of certain plants, the line-spacing of every root and stem of certain plants is 28 centimetres, row are apart from being 28 centimetres, and controlling the depth of water in seedbed is 8 centimetres, spray hormone combinations liquid on seedbed, described hormone combinations liquid is to add the 6-benzyl aminoadenine of 15 milligrams and the formed solution of indole-3-acetic acid of 8 milligrams in every premium on currency, the amount of described hormone combinations liquid is 0.1 liter of every square metre of seedbed spray, and then cover film on seedling, keep water temperature 15 degree in seedbed, the grow seedlings water temperature in field of control is 15 degree, the front 30 days depth of waters after the transplanting seedling are controlled at 8 centimetres, transplant seedling after 30 days the depth of water be controlled at 19 centimetres, controlling the pH value is 6, seedling is transplanted into grew seedlings field in the time of 48 days, the new eel grass seedling that forms by subterranean stem will grow to 10 centimetres of plant heights, the eel grass seedling density in seedbed be 250 strains/square metre, the film that covers on the eel grass seedling is removed, add water in the field of growing seedlings, make the depth of water reach 28 centimetres, hardening 9 days, seedling is shifted out the field of growing seedlings, namely obtain 10000 strain eel grass seedlings, the eel grass seedling of cultivating is applied in certain golf landscape lake aquatic ecosystem recovery project-regulation and control in engineering, the survival rate of this commodity eel grass seedling is 99.3%.
according to one embodiment of present invention, the selection physical features is smooth, leeward facing south, draining is good, have abundant water resources, convenient transportation, soil property is fertile is the filling out as growing seedlings field of neutrality or slant acidity, the length in the described field of growing seedlings is 35 meters, width is 6.5 meters, the field retaining degree of depth of growing seedlings is 45 centimetres, the steel skeleton booth is adopted in the field of growing seedlings, seedbed is dug dark 9 centimetres, break up the clods, every square metre of seedbed adds 0.4 kilogram of humus soil, stir, seedbed is arranged smooth, then add water in seedbed, controlling water depth is 1.5 centimetres, bleaching powder is added to the water and carries out disinfection, control every square metre of seedbed and add 8 gram bleaching powder, disinfecting time 4 days, gather 1000 strain growth vigors strong, without insect pest, the eel grass that plant height is 18 centimetres, as seedling, is rejected withered old blade and root, puts into sterilization pool and soaks 8 minutes kinds, and the thimerosal in described sterilization pool is the liquor natrii hypochloritis of mass fraction 1%, seedling is transplanted on seedbed, every 4 strain seedlings are a root and stem of certain plants, the line-spacing of every root and stem of certain plants is 30 centimetres, row are apart from being 30 centimetres, and controlling the depth of water in seedbed is 10 centimetres, spray hormone combinations liquid on seedbed, described hormone combinations liquid is to add the 6-benzyl aminoadenine of 18 milligrams and the formed solution of indole-3-acetic acid of 10 milligrams in every premium on currency, the amount of described hormone combinations liquid is 0.1 liter of every square metre of seedbed spray, and then cover film on seedling, keep water temperature 25 degree in seedbed, the grow seedlings water temperature in field of control is 25 degree, the front 30 days depth of waters after the transplanting seedling are controlled at 10 centimetres, transplant seedling after 30 days the depth of water be controlled at 20 centimetres, controlling the pH value is 7, seedling is transplanted into grew seedlings field in the time of 50 days, the new eel grass seedling that forms by subterranean stem will grow to 10 centimetres of plant heights, the eel grass seedling density in seedbed be 280 strains/square metre, the film that covers on the eel grass seedling is removed, add water in the field of growing seedlings, make the depth of water reach 30 centimetres, hardening 10 days, shift out with seedling the field of growing seedlings, and namely obtains 5000 strain eel grass seedlings, 5000 strain eel grass seedlings are moved in the plantation field, continued growth is kept a full stand of seedings, and increases simultaneously and expands the field cyclic seedling cultivation and keeping a full stand of seedings of growing seedlings, through cultivating altogether 10000000 strain eel grass seedlings in 2 years.The commodity eel grass seedling of cultivating is applied in certain artificial lake water ecosystem builds in engineering-regulation and control in engineering, the survival rate of this commercial seedling is 99.5%.
according to one embodiment of present invention, the selection physical features is smooth, leeward facing south, draining is good, have abundant water resources, convenient transportation, soil property is fertile is the filling out as growing seedlings field of neutrality or slant acidity, the length in the described field of growing seedlings is 40 meters, width is 7 meters, the field retaining degree of depth of growing seedlings is 50 centimetres, the steel skeleton booth is adopted in the field of growing seedlings, seedbed is dug dark 10 centimetres, break up the clods, every square metre of seedbed adds 0.5 kilogram of humus soil, stir, seedbed is arranged smooth, then add water in seedbed, controlling water depth is 2 centimetres, bleaching powder is added to the water and carries out disinfection, control every square metre of seedbed and add 10 gram bleaching powder, disinfecting time 3 days, gather 2000 strain growth vigors strong, without insect pest, the eel grass that plant height is 20 centimetres, as seedling, is rejected withered old blade and root, puts into sterilization pool and soaks 10 minutes kinds, and the thimerosal in described sterilization pool is the liquor natrii hypochloritis of mass fraction 1%, seedling is transplanted on seedbed, every 5 strain seedlings are a root and stem of certain plants, the line-spacing of every root and stem of certain plants is 32 centimetres, row are apart from being 32 centimetres, and controlling the depth of water in seedbed is 12 centimetres, spray hormone combinations liquid on seedbed, described hormone combinations liquid is to add the 6-benzyl aminoadenine of 20 milligrams and the formed solution of indole-3-acetic acid of 12 milligrams in every premium on currency, the amount of described hormone combinations liquid is 0.1 liter of every square metre of seedbed spray, and then cover film on seedling, keep water temperature 30 degree in seedbed, the grow seedlings water temperature in field of control is 30 degree, the front 30 days depth of waters after the transplanting seedling are controlled at 12 centimetres, transplant seedling after 30 days the depth of water be controlled at 21 centimetres, controlling the pH value is 8, seedling is transplanted into grew seedlings field in the time of 52 days, the new eel grass seedling that forms by subterranean stem will grow to 10 centimetres of plant heights, the eel grass seedling density in seedbed be 300 strains/square metre, the film that covers on the eel grass seedling is removed, add water in the field of growing seedlings, make the depth of water reach 32 centimetres, hardening 11 days, seedling is shifted out the field of growing seedlings, namely obtain 10000 strain eel grass seedlings, the eel grass seedling of cultivating is applied in certain golf landscape lake aquatic ecosystem recovery project-regulation and control in engineering, the survival rate of this commodity eel grass seedling is 99.5%.
" embodiment " who speaks of in this manual, " another embodiment ", " embodiment ", etc., refer to specific features, structure or the characteristics described in conjunction with this embodiment and be included at least one embodiment that the application's generality describes.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in specification.Furthermore, while in conjunction with arbitrary embodiment, describing a specific features, structure or characteristics, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also fall within the scope of the invention.
Although invention has been described with reference to a plurality of explanatory embodiment of the present invention here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.