57 results about "Elodea nuttallii" patented technology

The invention discloses a rice and chicken lobster continuous mixing planting and breeding method capable of stabilizing the grain income and increasing the fishery income. The method includes: digging circular furrows in a rice field, increasing the height and the width of ridges, reinforcing the ridges, and additionally arranging escape-proof facilities; transplanting Ceratophyllum demersum and Alternanthera philoxeroides in the circular furrows after water in the rice field is disinfected; transplanting Hydrilla verticillata, Potamogeton maackianus and Potamogeton wrightii in the rice field outside the circular furrows; performing a rice and chicken lobster continuous cultivation mode, breeding chicken lobsters from the last ten days of September or the first ten days of October to the first ten days of June of the secnd year after the rice is harvested; raising rice seedlings in a special field from May to the first ten days of June, and planting the rice from the middle ten days of June to the last ten days of September; using a ground cage to catch the chicken lobsters from May to the first ten days of June, and leaving a part of the chicken lobsters to be cultivated with the rice; putting parent chicken lobsters into the circular furrows of the rice field from the middle ten days of August to the first ten days of September; applying a fermentative organic fertilizer and putting Bellamya quadrata from the last ten days of February and the last ten days of May; putting Elodea nuttallii from March to June; feeding the chicken lobsters with a compound fodder at 18 p.m. to 19 p.m. every day; controlling the water level all through the year; controlling diseases of the chicken lobsters; catching the chicken lobsters; and planting the rice.

The invention provides a system and method for improving black and odorous riverway water quality through micro-aeration and submerged plants. Black and odorous riverway contaminated bottom silt is improved through bottom layer micro-aeration, release of contaminants of the bottom silt is controlled, growth of the submerged plants is assisted, and ammonia nitrogen is reduced. Meanwhile, according to the seasonal change of the plants, evergreen submerged vegetation is established through an elodea nuttallii-eel grass combination, accompanying species of ceratophyllum demersum, myriophyllum spicatum and hydrilla varticillata are planted in an assisted mode, the stable submerged vegetation is established, and the purpose of improving the riverway water quality is achieved. The problem that the transparency is low in the initial stage of a black and odorous riverway water quality improvement project is solved through a floating bed capable of ascending and descending through introduction of the submerged plants. The probability of establishment of the specific submerged vegetation in a black and odorous riverway is verified, water quality improvement is remarkable, operation is easy, the project amount is small, and the system and method are economical and practical.

The invention provides a method for preparing compound feeding attractants for aquatic animals. The method includes steps of S1, smashing vallisneria spiralls, elodea nuttallii, alga, button mushroom powder, corn flour, wheat flour, rapeseed cake, bean pulp, rapeseed meal and cotton powder to obtain materials A; S2, arranging wild trash fish, gobioidaei, conch meat, red nematode powder, dried silkworm chrysalis, clam meat, cuttlefish paste, yellow mealworm, propolis and squid paste in a grinder to prepare materials B; S3, preparing traditional Chinese medicine extract powder; S4, uniformly mixing the materials A, the materials B and the traditional Chinese medicine extract powder with one another to obtain mixtures, adding tussah immune active protein, monocalcium phosphate, shell powder, phospholipid oil, organophosphate, choline chloride, lard, inositol, betaine, casein, gluten powder, fish oil, soybean oil, cellulose powder, amino acid mixtures, vitamin mixtures, mineral mixtures, compound feed additives, subtilisin, active peptide and phytase into the mixtures and uniformly mixing the mixtures, the tussah immune active protein, the monocalcium phosphate, the shell powder, the phospholipid oil, the organophosphate, the choline chloride, the lard, the inositol, the betaine, the casein, the gluten powder, the fish oil, the soybean oil, the cellulose powder, the amino acid mixtures, the vitamin mixtures, the mineral mixtures, the compound feed additives, the subtilisin, the active peptide and the phytase with one another to obtain the compound feeding attractants. The method has the advantages that the aquatic animal yield can be increased by the aid of the compound feeding attractants, and the quality of the aquatic animals can be improved by the aid of the compound feeding attractants.

The invention discloses a selenium-rich green pepper liquid fertilizer which is prepared from the following raw materials in parts by weight: 4-5 parts of calcium superphosphate, 3-4 parts of Fengtou ginger, 4-6 parts of monopotassium phosphate, 3-5 parts of mango peel, 5-6 parts of ammonium sulfate, 3-5 parts of animal bone meal, 1-3 parts of antimonselite powder, 4-7 parts of ammonium nitrate, 2-3 parts of carnallite powder, 4-6 parts of elodea nuttallii and 6-9 parts of auxiliaries. With scientific proportioning, the green pepper liquid fertilizer disclosed by the invention completely meets the nutritional requirements in the growth process of green pepper; by adding the selenium-rich raw materials such as antimonselite powder and Fengtou ginger and combining the easily-absorbed water-soluble fertilizer, the selenium content of the produced green pepper can be effectively increased; and meanwhile, no harmful waste is generated in the production process of the fertilizer, environmental pollution is avoided when the fertilizer is used, and the fertilizer is an excellent green pepper fertilizer with high economic value and good prospect.

The invention discloses a water ecological restoration system; an upper frame and lower frame of the system are connected through connection rods arranged on two sides; floats are mounted on the upper frame, and flexible solar panels are arranged on the floats; the upper frame is provided with plastic planting areas, the bottom of each planting cell of the plastic planting areas is provided with a plurality of seepage holes; a light passage is formed between every two adjacent plastic planting areas along the length of the upper frame; a plurality of propellers are arranged at one end of the upper frame in its width direction on a support, and stirring devices are mounted on the supports in the middle of the upper frame; all the stirring devices, the propellers and the flexible solar panels are connected to a battery pack on a mounting platform on the upper frame; a floating matter remover is arranged on the upper frame; a plastic planting plate is arranged on the lower frame, and Hydrilla verticillata, Elodea nuttallii, Potamogeton pectinatus and/or Dendrobium lohohense are planted in planting holes of the plastic mounting plate; a plastic retaining plate is mounted in every two adjacent retaining grooves.

The invention discloses a feed of crabs. The feed is prepared from the following components in parts by weight: 10-15 parts of Hanayama bran, 8-12 parts of rapeseed meal, 9-13 parts of soybean meal, 5-10 parts of tubificidae powder, 15-20 parts of fish meal, 10-13 parts of middlings, 5-10 parts of yolk powder, 6-8 parts of chicken liver powder, 5-8 parts of chicken blood powder, 6-8 parts of kelp powder, 4-8 parts of elodea nuttallii leaves, 5-7 parts of vallisneria natans, 4-5 parts of myriophyllum spicatum, a proper amount of salt, and 4-5 parts of a preservative, wherein the preservative is prepared from the following components in parts by weight: 10-15 parts of sorbitol, 4-8 parts of monosaccharides, 1-5 parts of sweet potato powder, 5-8 parts of gluconic acid and 4-7 parts of natamycin. The feed is an ecological and green feed, and is capable of obviously improving the disease resistance of crabs, greatly increasing the survival rate of crabs, ensuring the high breeding speed of crabs and improving the yield of crabs when being used for feeding crabs.

The invention discloses a cultivation technique of freshwater shrimps. The cultivation technique comprises the following steps of (1) establishing a cultivation pond of which the bottom is flat and the two sides are slopes, laying loam soil at the bottom of the cultivation pond, laying a layer of maifan stones on the loam soil, and separately arranging a row of cultivation net cages of which the specification is 5m* 5m* 1m on the other two sides of the pond (except the two slopes); (2) half a month before breeding, performing disinfection treatment on the cultivation pond, and mounting oxygen supply equipment; (3) planting lythrum salicaria, aquatic iris and cyperus alternifolius on the slopes of the pond, planting dendrobium lohohense, potamogeton pectinatus and elodea nuttallii at the bottom of the pond, and putting pear-shaped bellamya in the pond to form a water body self-purification system; (4) designing a formula feed and fresh bait; (5) performing classified breeding, and performing gradient feeding; and (6) performing reasonable fishing. According to the cultivation technique disclosed by the invention, comprehensive nutrition can good-quality growth environment are provided for the growth of the freshwater shrimps, the growth speed of the freshwater shrimps can be notably increased, the immunity of the freshwater shrimps can be notably enhanced, the yield and the quality of the freshwater shrimps are improved, the survival rate of cultured shrimp larvae is increased, and the economic benefits of breeding households are guaranteed.

The invention discloses a biomass active ecological organic fertilizer. The active ecological organic fertilizer comprises the following raw materials in parts by weight: 1-2 parts of copper sulphate powder, 3-4 parts of micro silicon powder, 18-20 parts of straw ash, 5-6 parts of monoammonium phosphate, 2-3 parts of calcium chloride, 16-19 parts of cassava slag, 26-28 parts of lentinus edodes chaff, 74-78 parts of crops straw, 3-5 parts of dolomite dust, 2-4 parts of original liquid of EM, 48-54 parts of Elodea nuttallii, 3-4 parts of a cellulase preparation, 2-3 parts of a protease preparation, 6-8 parts of tamarind fruits, and a proper amount of water. The biomass organic fertilizer takes biomass charcoal as a carrier, a plurality of beneficial microbes as well as medium and trace elements and organic humus are added as core fertilizer sources, soil flora can be effectively activated, crop root microenvironment is improved, soil porosity is increased, soil unit weight is reduced, pathogenic bacteria in the soil is purified, chemical residue and heavy metal pollution in the soil can be decomposed, and the biomass active ecological organic fertilizer provides excellent growth environment for crops.

The invention relates to the technical field of toad farming, in particular to a ricefield breeding method of toads, comprising the steps of (1) selecting and preparing a ricefield; (2) inserting riceseedlings into the ricefield, allowing water to move in micro-flow form for long time, adding toad tadpoles into the ricefield, and planting Elodea nuttallii in ditches; (3) setting cow dung, 20-30 centimeters thick and fermented with EM (effective microorganism) activated solution, on a rest platform, covering the cow dung with straws, soybean meal and wheat bran; (4) applying farmyard manure and EM activated solution to the rice field before rice flowering and earing so as to form a toad growth ecological system constructed with waterweeds, rice, snails, EM bacteria and waterweeds, and riceroot microorganisms. The ricefield breeding method of toads provided herein allows a toad growth and breeding environment to be optimized, and toad farming cost to be reduced.

The invention discloses a potassium-increasing soil repairing agent. The potassium-increasing soil repairing agent comprises the following raw materials in parts by weight: 22-24 parts of coffee grounds, 8-10 parts of Elodea nuttallii, 2-3 parts of sodium phosphate, 2.3-2.5 parts of polyaspartic acid, 6-7 parts of alcohol waste mash, 1.5-1.8 parts of bamboo leaf flavonoid powder, 15-18 parts of waste tobacco leaf ash, 3-4 parts of carnallite fine powder, 59-61 parts of polluted pen manure, 12-14 parts of papermaking black liquor, 3.5-3.6 parts of a nitric acid solution with concentration being 10%, 9-10 parts of alum slurry, and a proper amount of water. The soil repairing agent aims at the general problem of potassium deficiency of the soil in our country, by adding the potassium-rich raw materials such as waste tobacco leaf ash and carnallite fine powder, through combined action of decomposed organic matters such as coffee grounds and Elodea nuttallii, maximum absorbing capacity of the elements is increased, biological enzyme activity of the soil layers can be promoted by assistance of bamboo leaf flavonoid powder and polyaspartic acid, release and accumulation of the effective potassium element in the soil are realized, and favorable condition can be provided for planting the crops.

The invention discloses a teal breeding method through rice-duck co-culture. The method includes: selecting a structural parcel with staggered layers at corners as a rice-duck co-culture area, applying organic base fertilizer, deeply ploughing, drawing water to nourish a field, plant-breeding elodea nuttallii, building duck houses at positions of the staggered layers, planting astragalus sinicus,alfalfa and typha angustifolia before seedling transplanting in the rice-duck co-culture area, screwing into soil after plants survive, selecting ducks small in size as breed ducks after seedling transplanting, putting the ducks into the rice-duck co-culture area in the middle of June, feeding different food materials according to different growing periods of the ducks, increasing feed feeding amount in late August, starting to withdraw the ducks, performing centralized breeding after withdrawing is completed, and re-stocking the ducks into the rice field for fattening after rice is harvestedto obtain commodity ducks. The rice field is fully utilized in the process of duck breeding to generate greater economic benefit, ecological mutually complementary and beneficial environment is built,duck breeding cost can be reduced effectively, and duck meat quality is improved.

The invention discloses a bass pond ecological culture method. The method comprises the steps of pond construction, stocking, feed preparation, and culturing, in particular, a quiet and safe environment is selected to construct a pond, aerators are installed, elodea nuttallii and alternanthera philoxeroides are planted, a sun-shading net is constructed, bass stocking is conducted by a stocking density of 9000-10000 stock per mu, culturing is conducted according to the method with the feeding rate of 7-11% of the feed body mass and the daily feeding frequency of 3-4 times. The bass pond ecological culture method has the advantages that the utilization rate of granulated feed by the bass is increased, the digestibility of feed protein and energy is increased, growth is promoted, productivity is increased, food waste and residual bait are reduced, summer water temperature is lowered by utilizing the combination of elodea nuttallii, alternanthera philoxeroides, and sun-shading net, energy consumption can be reduced, water eco-environment can be improved, and good ecological benefits can be achieved.

The invention discloses a biomass organic fertilizer for planting melons and fruits. The fertilizer is prepared from the following components in parts by weight: 25 to 26 parts of corncob, 14 to 15 parts of beer residue, 1 to 3 parts of copper sulfate pentahydrate, 4 to 6 parts of potassium humate, 5 to 6 parts of quartz stone powder, 8 to 9 parts of fly ash, 3 to 4 parts of boric acid, 62 to 66 parts of crop straw, 3 to 5 parts of oxidized lignosulfonate, 12 to 15 parts of orange peel, 69 to 73 parts of elodea nuttallii, 3 to 4 parts of cellulase preparation, 2 to 3 parts of protease preparation, 13 to 14 parts of fruits of tamarindus indica, and a proper amount of water. The provided fertilizer is rich in nutrients, at the same time contains many active groups, and has a strong absorption performance. Nutrients in soil and the fertilizer can carry out complexing easily, and thus the loss of nutrients in fertilizer is prevented. The fertilizer can also promote the trace element absorption and utilization of crops. The utilization rate of fertilizer is improved. Moreover, the blossoming and fruiting of crops are both promoted by the fertilizer, and thus the economic benefits of agriculture plantation are largely increased.

The invention provides an open-air temporary rearing method of procambarus clarkii in winter. The method comprises the steps that selection of an overwintering planting and breeding paddy field and field engineering transformation are carried out; open nylon net cages are used for breeding the procambarus clarkii, the net cages are arranged on the table surface of the paddy field side by side, theline spacing is 8-12 meters, the interval is 4-7 meters, and the distance of the outermost row of the net cages from the inner edge of an annular ditch is 5 meters or above; the water quality is regulated; elodea nuttallii is planted, the line spacing is 8-12 meters, and the plant spacing is 4-6 meters; red shell shrimps are selected and put in the net cages; in the rearing period, the water level is maintained at 1.2-1.5 meters above the table surface; feeding management of temporary rearing of the procambarus clarkii is carried out; a special procambarus clarkii feed is selected for feeding. The open-air temporary rearing method of the procambarus clarkii in winter has the advantages that by changing the overwintering environment of the procambarus clarkii, measures of deep water injection, the high net cages, thick water plants and fertilizer and water for cultivation are taken, a better overwintering environment is created for the procambarus clarkii, the stress stimulation of theenvironment temperature change on the procambarus clarkii is retarded, finally, the overwintering survival rate of the procambarus clarkii reaches 90% or above, and the overwintering weight is reduced to less than 5%.