43results about How to "Improve survival rate" patented technology

The invention discloses a sectional production method of Litsea coreana insect tea, and belongs to the technical field of insect tea production. The method comprises the following steps: dispersing eggs of a tea-producing insect aglossa dimidiata in a low-age larva foodstuff for culturing; after 3-instar larvae are obtained, continuously culturing the larvae with advanced-age larva foodstuff; after the tea-producing insects begin to emerge, collecting larva excrement, and removing impurities to obtain the litsea coreana insect tea. The low-age larva foodstuff is obtained by taking young eagle tea shoots as raw materials, fermenting, drying and crushing to obtain eagle tea powder, and then mixing the eagle tea powder with corn flour and soybean flour; wherein the foodstuff for the elderly larvae is litsea coreana fragments; and the water content of the low-age larva foodstuff and the water content of the high-age larva foodstuff are both 20 wt%. According to the method, the insect tea is obtained by improving the foodstuff of the larvae of the tea-producing insects, strictly controlling the water content of the foodstuff and carrying out segmented culture on the larvae, so that the survival rate of the tea-producing insects is effectively improved, the tea sand particles of the obtained insect tea are uniform, and the quality is improved.

The invention discloses a method for promoting rooting of tea tree cutting seedlings. The method comprises scion collection, scion sterilization treatment, cutting and nursery bed management, and specifically comprises the steps of immersing branches for cutting in mixed solution of potassium permanganate and boric acid for 3 to 5 hours, then immersing the branches for cutting in mixed solution of ABT rooting powder and carbendazim for 2 to 8 hours, and performing cutting and later-stage nursery bed management. The method for promoting rooting of tea tree cutting seedlings can supplement vitamins and convert embryonic cells into growth-supporting meristem nutrients needed by root cell division; the vitamins can promote the division, growth and the like of plant vascular bundles and facilitate the rooting and germination of the cutting seedlings, the cost in cutting seedling rooting is low by adopting the method, the survival rate of the cutting seedlings is greatly improved and the law that Lingyun Baekho tea is difficult to survive through cutting is broken.

The invention relates to aquatic plant planting auxiliary equipment which comprises a planting device, wherein the planting device comprises a planting part and a floating part which are adjacently arranged, the density of the floating part is smaller than that of water, a planting cavity is formed in the planting part, a planting hole is formed in the middle of the floating part, one end of the planting hole communicates with the planting cavity, the other end of the planting hole penetrates through the floating part, a plurality of rooting holes communicating with the planting cavity are formed in the side wall of the planting part, the end, away from the floating part, of the planting part is fixedly connected with a ground needle used for penetrating into underwater soil, and the outer wall of the planting part is connected with a plurality of spiral fan blades. The aquatic plant planting auxiliary equipment has the effect of increasing the survival rate of aquatic plants planted in the deepwater area.

The invention discloses a seedling-raising substrate for decreasing insect damage in the snake gourd planting process. The seedling-raising substrate is prepared from, by weight, 15-22 parts of snake gourd peels, 9-15 parts of attapulgite, 7-16 parts of kaolin, 1-3 parts of vermiculite mixture, 3-5 parts of humic acid, 6-12 parts of peat, 5-10 parts of corn straws, 5-8 parts of cassava straws, 4-7 parts of fermented vinegar dregs, 5-9 parts of crushed vinegar dregs, 7-12 parts of mushroom residues, 6-9 parts of wormcast, 14-23 parts of chicken manure, 11-18 parts of cow dung, 4-9 parts of calcium superphosphate, 12-15 parts of sulfate, 4-6 parts of VT-aerobic fermentation bacteria, 6-8 parts of potassium bacterium fungicide and 5-11 parts of EM fungicide. The raw materials for preparing the seedling-raising substrate are wide in source and low in cost, the attapulgite, the kaolin and the vermiculite mixture are preprocessed, the loose and transparent properties of the substrate are strengthened, seedling growth and development are promoted, and the survival rate of seedlings is improved. The snake gourd seedlings cultured by adopting the substrate are low in disease and insect pest occurrence rate and are healthier and stronger.

The invention discloses a cultivation method for sugarcane seedlings. The method comprises the following steps that a seedling bed capable of storing water and draining water is built; firstly, a layer of bottom mud is laid above the seedling bed, water is sprayed to the bottom mud, and then the seedling bed is put under the blazing sun for quite a long time; then, a layer of sludge is laid abovethe bottom mud, ditches are dug in the two sides of the seedling bed, and the sludge is dried in air; finally, a layer of composite soil is laid above the sludge; seeds are sown above the composite soil; then, a plastic small shed is set up above the seedling bed; then, seedling management is performed, and after sugarcane seedlings grow to 15-20 cm, provisional planting and field planting are performed. According to the cultivation method for sugarcane seedlings, the operation method is simple, equipment and raw materials do not need to be specially machined, few manpower and material resources are consumed, the cost is low, the obtained sugarcane seedling germination rate is high, the growth speed is high, the sugarcane seedlings are robust, the root system is developed, the number of leaves is large, the transplanting survival rate is high, and the method has the good economic, social and ecological benefits and is suitable for large-scale application and popularization.

The invention discloses a planting method of Bletilla striata, comprising the steps of (1) selecting a land; (2) preparing the land; (3) growing seedlings by in compact manner; (4) planting in a largefield; (5) managing the field. The planting method of the Bletilla striata has the advantages that field planting survival rate of Bletilla striata tissue culture seedlings is increased to 95%, success rate of the planting method is 100%, and Bletilla striata can be highly produced stably.

The invention relates to a cutting seedling raising method of cherry trees. The method comprises the steps that a young and robust mother tree is selected, annular primarily-lignified branches are cut into cuttings with the length of 10-15 cm, the lower ends of the cuttings are sliced, oblique notches are scratched at the portions 0.7-1 cm away from the lower ends of the cuttings, and the depth of the notches is 1-2 mm; the lower portions of the cuttings are inserted into an ABT number 6 solution with the concentration of 200 mg/L to be soaked; after the cuttings are aired at a shade place, the lower ends of the cuttings are cut off and inserted into a seedbed, and when cuttage is conducted, punching is conducted with a wood drill a little thicker than the cuttings, and then the cuttings are put into holes to be compacted; the seedbed is erected over the ground, and after cottage is completed, the seedbed is smoked by laying smoking materials on the ground and then thoroughly watered; the temperature of the seedbed is kept at 20 DEG C to 25 DEG C, and after 3-4 weeks, transplanting can be conducted when 3-5 roots grow on each cutting. According to the cutting processing method and the smoking method, the survival rate of cutting seedling raising of the cherry trees can be effectively increased, and the disease-infected seedlings can be effectively reduced.

The invention discloses an overwintering storage method for queen wasps, and belongs to the technical field of apiculture. The method comprises the following steps: a, firstly sterilizing queen wasp overwintering boxes to be used by using ozone, then putting sterilized boxes into a plant mould inhibitor, performing soaking for 5min-10min, taking out soaked boxes, and performing drying in a sun foruse; b, at the end of a September to the beginning of a December each year collecting fertilized quasi-queen wasps produced by the queen wasps in a same year; c, putting the quasi-queen wasps collected in the step b into the queen wasp overwintering boxes obtained in the step a, keeping a temperature in the boxes to be 5.6 DEG C to 12.6 DEG C and the humidity to be 52.3% to 79.6%; and d, conveying the queen wasp overwintering boxes in the step c into a queen wasp overwintering room. The method provided by the invention can solve a problem that a survival rate of existing queen wasps in an overwinter period is low.

The invention provides a planting method of torreya grandis. The method comprises four steps of accelerating germination, grow seedlings, transplanting and grafting, wherein in the accelerating germination stage, a two-layered greenhouse is used; an inner-layer plastic film of the two-layered greenhouse is a two-layered film; a plurality of air cavities are formed in the middle of the two-layered film; the two-layered film is aerated or deflated according to the temperature difference between day and night, so that the temperature in the greenhouse is adjusted. A pit 20 cm in depth is excavated in the greenhouse; a first isolation net layer is paved at the bottom of the pit; torreya grandis seeds are piled on the first isolation net layer; a second isolation net layer is paved on the torreya grandis seed layer; a sandy soil layer is paved on the second isolation net layer. By the planting method of torreya grandis provided by the invention, manual temperature control is performed for half a month in December, the sprouting rate in the next January can be 60 percent, and can be 80 percent in next February; two sunshade nets are placed in the pit, so that ventilation is ensured, and the covering soil layer and the torreya grandis seed layer can be taken away conveniently; the process is simple; time and labor are saved.

The invention discloses an anti-low temperature stress protection agent for artificial hibernation of amphibians and further discloses application of the anti-low temperature stress protection agent and a preparation method of the anti-low temperature stress protection agent. The anti-low temperature stress protection agent has the beneficial effects that with the combination of anti-stress nutrition substances such as potassium iodide, amino acid iodine, nicotinic acid and anhydrous dextrose, through optimized combination, and by replenishing exogenous glucose and promoting endogenous glucosein bodies, the anti-low temperature resistance of amphibians is improved, in addition, a part of components have functions of killing pathogens, and then the survival rate of the amphibians in the process of artificial hibernation and low-temperature transportation is synergistically increased.

The invention provides a young scorpion breeding method and relates to the technical field of culture of special species. Some gravel, tile blocks and coal cinders are put in scorpion nests, wherein layer space between the tile blocks is in a range of 1cm to 2cm; saprolite is put in the scorpion nests, wherein the soil humidity in the scorpion nests is 20%, the inside relative air humidity in the scorpion nests is 75%, and the temperature of the scorpion nests is 33 DEG C. According to the method, the method is scientific and reasonable; the gravel and the coal cinders arranged in the scorpion nests can help young scorpions with mechanical molting, the saprolite can help scorpions be adapted to changes of outside weather, and accordingly, the adaptive capacity of the young scorpions to the environment is improved, and the breeding survival rate of the young scorpions is improved effectively.

The invention relates to an endangered plant sphaeropteris lepifera propagation technology and a field regression method. The technical problems that spore propagation of sphaeropteris lepifera is difficult, and the requirements of spores for matrix water-retaining property, air permeability and nutrient supply are harsh are solved. A disinfection scheme is continuously optimized for a long time, meanwhile, a culture medium is changed, sterile filter paper is explored to be placed in a culture dish, the growth conditions of the spores of the sphaeropteris lepifera are regulated and controlled, and the breeding effect of accelerating the spores to the gametophyte period is achieved. Meanwhile, through precise control after transplanting and matching with special equipment, a stable breeding system of the sphaeropteris lepifera is formed, and the technical problem of sphaeropteris lepifera breeding is effectively solved.

The invention discloses a method for domesticating and transplanting a taxus chinensis var mairei tissue culture seedling. The method comprises the following steps of (1) selecting the tissue culture seedling by means of selecting the taxus chinensis var mairei tissue culture seedling with a well-grown root system and more than one true leaf; (2) preliminarily domesticating the tissue culture seedling by means of putting a tissue culture container with the tissue culture seedling into a greenhouse for 3 to 5 days; (3) preparing a transplanting container and a culture substrate by means of selecting a seedling culturing box, and filling vermiculite, turf or nonwoven-fabric wrapped fresh coconut chaff in holes of the seeding culturing box; (4) transplanting and hardening seedling by means of planting the tissue culture seedling in the middle of the culture substrate obtained in the step (3), watering sufficiently, closing a seedling culturing box cover, putting the box into the greenhouse with 50 percent of sunshield screen, culturing at an environmental temperature of not more than 35 DEG C, and opening the seedling culturing box cover and performing a conventional seedling management mode after two weeks, wherein the survival rate of transplanted tissue culture seedlings reaches 100 percent at most. The method disclosed by the invention has the advantages that the disadvantages in the prior art are overcome, and the effects of simplicity in operation, low cost, high efficiency, stability and reusability of the seedling culturing box are achieved.

The invention belongs to the technical field of vaccine preparation, and particularly provides a cyprinid herpesvirus 2 attenuated strain and an application thereof. The cyprinid herpesvirus 2 provided by the invention is a cyprinid herpesvirus 2 DX2019 strain, and the preservation number is CCTCC NO:V201980. A vaccine prepared by using the strain can prevent diseases caused by the cyprinid herpesvirus 2, has an immune protection effect of 92 percent or above, does not generate a stress reaction to organisms, and can be applied to prevention of haematopoietic organ necrosis of crucian carps, so that the incidence rate of haematopoietic organ necrosis of the crucian carps in a crucian carp culture pond is reduced, and the survival rate of the crucian carps is improved.

The invention provides an indoor artificial leech hibernation method, and aims at providing an artificial leech hibernation method which is easy and convenient to operate indoors and high in survival rate. By adopting the method, the leech survival rate can be increased by about 67% compared with that of an existing outdoor natural overwintering method; the leech conversation rate is increased on the premise that the mass of leech bodies is basically not decreased. Compared with an existing outdoor breeding natural overwintering conversation method, the method has the advantages that the death number of breeding leeches after overwintering can be decreased, and the body weight decrease of the breeding leeches after overwintering can be reduced; according to incomplete statistics, the dry weight of the leeches can be increased by about 40 kilograms per mu, and the economic benefit is increased by about 40,000 yuan per mu according to the current market price of 1,000 yuan per kilogram.

The invention discloses a method for cultivating acclimatized pennisetum alopecuroides 5#. The method comprises the following steps: (1) cultivating parent strong root systems; (2) carrying out parent hybridized combination; (3) acclimatizing resistance characteristic of the acclimatized pennisetum alopecuroides 5#; and (4) acclimatizing progressive type cold resistance characteristic of the acclimatized pennisetum alopecuroides 5#, wherein the parent hybridized combination in the step (2) means carrying out combination cultivation by adopting a back-cross method in a manner of taking napier grass as a paternal parent and taking African pennisetum alopecuroides as a maternal plant. The acclimatized pennisetum alopecuroides 5# planted by adopting the method for cultivating the acclimatized pennisetum alopecuroides 5#, disclosed by the invention, completely has the characteristics, i.e., special barren resistance, drought resistance, moisture resistance and high-temperature resistance of acclimatized pennisetum alopecuroides 2#, meanwhile, the growth speed is higher, the yield is higher, and the nutrients are richer.

The invention relates to a stereoscopic intelligent fry distribution system. The system comprises a distribution box, a fry suction machine and a distribution pipe, and a fry suction pipe is connected between the distribution box and the fry suction machine; the system further comprises a flow dividing device, the flow dividing device is connected to an outlet of the fry suction machine through the distribution pipe and provided with a plurality of flow dividing pipes, and each flow dividing pipe is connected with a breeding pond. The stereoscopic intelligent fry distribution system can automatically suck and distribute fry without a manual fishing link to achieve the automation of aquaculture, and the labor cost is further reduced; moreover, during the distribution of the fry, the fry can be sent into the breeding ponds of different heights under the high pressure effect of an air pump to achieve the stereoscopic effect of breeding, the damage to the fry is small, and the survival rate is high.