88results about How to "Avoid photosynthesis" patented technology

The invention discloses ankistrodesmus sp containing lipid as well as culture and applications of ankistrodesmus sp, wherein the ankistrodesmus strain is SS-B7, the classification name of SS-B7 is Ankistrodesmus sp, and the ankistrodesmus sp SS-B7 is preserved in the China General Microbiological Culture Collection Center (CGMCC) on April 15, 2013, and has the preservation number CGMCC No.7478. The ankistrodesmus sp SS-B7 has tolerance to CO2 and NOx with high concentrations, and has high carbon sequestration efficiency, the content of total lipids in the cells of the obtained biomass accounts for 40% or above of the dry cell weight, and the ankistrodesmus sp SS-B7 can be used for producing biodiesel.

The invention relates to a medicament for fast preventing the malignant float grasses and the water algae and the application thereof, belonging to the pesticide formulation technical field, which is characterized in that the medicament comprises from 40% to 90% of a plant vinegar fluid, from 5% to 35% of an organic acid, and from 1% to 20% of pesticide addition agent, the plant vinegar fluid is either a bamboo vinegar fluid, a wooden vinegar fluid, and (or) grass vinegar fluid, the organic acid is one of or a mixture of more than one of a formic acid, an acetic acid, a propionic acid, a 2-methyl propionic acid, an ethyl acetic acid, a 4-hydroxy ethyl acetic acid, a pentanoic acid, a benzoic acid, a 2,6-hydroxy benzoic acid, a 3-hydroxy-4-methoxy benzoic acid or a 3-methoxy-4-hydroxy benzoic acid. The medicament has the advantages of fast destroying the chlorophyll, stopping the plant to do the photosynthesis, commonly killing the water algae in a half hour and the float grass in three hours by spraying, having low production cost, strong killing capability, wide adaptable temperature range and pH value range. The active component of the invention has the advantages of being the natural-occurring substance, no corrosion, nonirritant, safe use, and reliability, easy biodegradation, and no secondary pollution.

The invention discloses Desmodesmus sp. rich in oil, and culture and application thereof. The Desmodesmus sp. is MH-04 preserved in China General Microbiological Culture Collection Center on April 24, 2015, with an accession number of CGMCC No. 10764. The Desmodesmus sp. can tolerate high-concentration CO2 and SO2, is capable of realizing photoautotrophic growth in virtue of exhaust gas or flue gas containing CO2 and SO2 to acquire biomass and has a high carbon sequestration rate; and the obtained biomass is rich in oil and can be used for production of biodiesel.

The invention discloses a high-and-stable yield Jizui litchi cultivation method and belongs to the technical field of litchi cultivation. The high-and-stable yield Jizui litchi cultivation method includes the steps of cultivating fruiting canes, controlling growth of tree tips and promoting growth of flowers, holding flowers and fruits and preventing diseases and insect pests. Particularly, the steps includes composting fish scale, fish heads, shrimp heads, crab shells and egg shells to form manure, applying basic fertilizer, flower promoting fertilizer and swelling fertilizer reasonably, prolonging the sunshine duration during tip cultivation in autumn, shortening the sunshine duration during tip growth control in winter, smearing aloe gel on portions of branches which are subjected to spiral girdling and covering the portions with plastic films, and in different periods, performing different foliage topdressings and spraying different pesticides to prevent plant diseases and insect pests. The high-and-stable yield Jizui litchi cultivation method has simple steps, is convenient to operate, guarantees numbers of the fruiting canes the next year, keeps the Jizui litchi strong in growth and achieves big fruits with high quality and high and stable yield, and accordingly increases economic benefit.

The invention discloses an algaecide. The algaecide mainly comprises cinnamic aldehyde, eugenol and citric acid, wherein the content of the cinnamic aldehyde is between 0.01 and 5.0ml/l; the content of the eugenol is between 0.01 and 5.0ml/l; the mass content of the citric acid is between 1.0 and 5.0 percent; the content of azone is between 1.0 and 1.5 percent; and the content of NP-10 is between 8 and 15 percent. The algaecide has good algae-killing effect, wide range of pH application and convenient and safe use, cannot cause secondary pollution to the environment, has deodorizing effect, and can be widely applied to algae-killing and water purifying treatment for natural and landscape water bodies.

The invention discloses a method for controlling large algae in a sea cucumber pond on the basis of biotechnology. After water temperature rises to 5 DEG C for the first time after early spring and when the large algae grow in the pond or pond transparency is larger than 80cm, bacillus subtilis is evenly sprinkled to the water surface of the pond with the large algae, the microbial content per square meter is 1.5-2.5 billion, diatom breeding fertilizer and fermentation organic fertilizer for promoting bacillus subtilis growth and lowering transparency are evenly sprinkled, so that the pond transparency is lowered to 80cm, and restraint of the large algae is achieved. According to the biological method, the relative transparency is adjusted through alga introduction and matched using of specific inorganic fertilizer, organic fertilizer and bacillus subtilis according to growth laws of the large algae in ponds of different areas at different time nodes so as to restrain photosynthesis of the large algae, and accordingly the goals of controlling rampant growth of the algae and not influencing normal growth of sea cucumbers are achieved.

The invention discloses a method for increasing the content of astaxanthin in haematococcus pluvialis. The method comprises the step of adding monoethanolamine (MEA) into a culture solution at an immobile stage of culture of haematococcus pluvialis until the final concentration is 50-400 mg/L. The method for increasing the content of astaxanthin in haematococcus pluvialis is a new technical routefor increasing the content of astaxanthin in haematococcus pluvialis, the content of astaxanthin in cells is significantly increased, the culture time is shortened, and the culture efficiency is improved.

The present invention discloses a double-component solid bag-hanging carbon dioxide delayed release gas fertilization agent. Said invention includes two solid components of delayed release agent and solid carbonate, they are chemically-modified diatomite and ammonium hydrogen carbonate respectively. Said invention also provides its concrete preparation method and its application method.

The invention provides special weedicide for bletilla striata and application of the special weedicide and belongs to the field of plant cultivation. The weedicide is prepared from an effective component and an auxiliary agent, wherein the content of the effective component accounts for 55 percent to 65 percent of the total amount of the weedicide and the pH (Potential of Hydrogen) value of the weedicide is 5.5 to 6.5; the effective component is prepared from the following components in parts by weight: 18 to 24 parts of jatrorrhizine, 15 to 20 parts of palmatine, 6 to 8 parts of benzothiazooxadiazon, and 6 to 8 parts of flucetosulfuron. The weedicide provided by the invention can be used for effectively preventing and removing almost annual grass weeds, broadleaf weeds and the like in bletilla striata fields, has the advantages of wide weeding spectrum and good prevention and treatment effect and is relatively moderate to bletilla striata plants; when the weeds are removed, normal growth of the bletilla striata plants is not influenced. When the weedicide is used for removing the weeds of the bletilla striata fields, the weeding effect is good and no phytotoxicity on the bletilla striata plants is caused; meanwhile, active components of the weedicide are natural small molecule compounds so that pesticide residues and environment pollution are not caused.

The invention discloses inactivating chemical for eucalyptus stumps and a using technology. The inactivating chemical for the eucalyptus stumps comprises a component A and a component B, wherein the component A comprises, by weight, 5-10 parts of hexazinone and 5-10 parts of oxyfluorfen; the component B comprises, by weight, 35-45 parts of trichlopyr, 10-25 parts of picloram and 10-25 parts of sulfometuron methyl. The using technology includes the steps of stump treatment and chemical using. The inactivating chemical for the eucalyptus stumps can be used for effectively preventing water and soil loss, improving soil fertility and the soil structure and improving the productivity of forest land.

The invention discloses an ailanthus altissima bark algistat and a preparation method and an application thereof, and belongs to the field of water boy pollution control. The algistat is an absolute ethyl alcohol crude extract of ailanthus altissima bark. Compared with the prior art, the defects that an existing chemical method causes secondary pollution and is high in cost, unlikely to be controlled, likely to damage the ecological environment and the like are overcome, and the limitation that the algistat is high in technical cost and complicated in operation is solved by utilizing water plant extraction. The algistat is extracted from the woody plant ailanthus altissima bark, and the preparation method is simple, convenient to use and high in operability and is suitable for large-scale popularization. The prepared algistat has high inhibition efficiency for microcystis aeruginosa, and can become effective on the second day; the inhibition ratio reaches more than 90%, and the water body can be effectively prevented from breaking out water bloom for a long period of time.

The invention relates to a cultivation water environment environmental-protection cleaning agent and a preparation method thereof, and belongs to the technical field of environmental-protection cultivation water purification agents and water fertilizing products. The adopted raw materials comprise nanometer calcium carbonate, sodium humate and water. The cleaning agent has characteristics of no toxicity, no odor, high water purification efficiency, good water fertilizing effect, effective removing of hydrogen sulfide, ammonium salts and heavy metal ions, water body pH value stabilization maintaining, safety and efficiency. The product is mainly black powder, can effectively attach to the surface of harmful algae of the water body so as to prevent a photosynthesis effect and provide an algae killing effect, can be adopted as water body microorganism food and energy sources to be absorbed so as to achieve a good water fertilizing effect, and can further be adopted as a microorganism cultivation calcium supplementation agent so as to improve a feed utilization rate, improve body disease resistance, increase appetite, and increase a yield. During use of the cultivation water environment environmental-protection cleaning agent, no harmful residue is generated, and no secondary pollution is generated. The cultivation water environment environmental-protection cleaning agent is used for cultivation water bodies of sea cucumbers, shrimps, shellfish and other cultivation organisms. The preparation process has characteristics of simpleness, low cost and environmental friendliness.

The invention discloses a modular paddy field weeding robot and a weeding method of splashing water between plants. The robot comprises a walking mechanism module, a row spacing adjusting module, a track front inclination adjusting module and the like, wherein the walking mechanism module is the executing component of the weeding work, which is directly driven by a hub motor. According to the rowspacing adjusting module, the operation row spacing is changed through rotating a screw lever with a left-handed thread and a right-handed thread on two ends respectively to adjust the row spacing ofa nut mounted on inner baffles on both sides. According to the track front inclination adjusting module, the angle between the track and the surface of the paddy field is adjusted by changing the relative position of a driven wheel axle and a guide wheel axle. During the sprouting period of the weeds, the robot reciprocates between the seedling rows of the paddy fields, and muddy water splashing on both sides generated by the movement of the walking mechanism is utilized to bury the weeds between the plants, so that the paddy field is muddy enough to curb photosynthesis of the weeds to complete weeding work.

The invention discloses a method for using Bacillus thruingiensis fermentation broth to improve salt resistance of lawn plants, which includes: adding 200g of saline-alkali soil different in concentration into disposable plastic cups 7cm in diameter; sowing 0.5g of seeds of Perennial ryegrass, and 0.5g of seeds of Festuca arundinacea in each cup; repeating testing for three times; adding 1ml of various types of inoculants into the soil when the lawn plants grow about 5cm high; adding sterile liquid medium into a control group; moving the plastic cups to a test land and burying the cups deep in the soil to keep plant growth environment to be consistent to the test land soil environment; and quantitatively watering the plants every day to guarantee consistent treatments; testing indexes after the plants grow for 2 months, transplanting the plants to a field and burying deep in the soil when emergent seedlings are stable (10d) so as to keeping the plant growth environment being consistent to the test land soil environment. Test results show that adding the Bacillus thruingiensis inoculant relieves stressed degree of the lawn plants to a certain degree, and growth of the lawn plants is promoted.

The invention discloses a control method for invasive plants and application, especially control on bidens pilosa L. According to the method, plant straw is uniformly laid on a ground surface where invasive plants grow in winter; after continuous 30-80 days or spring begins, light-proof airtight materials including a black film and the like are laid to guarantee that the covering rate is 100%; andthe black film continuously covers the plant straw for 50-70 days or is removed after summer begins. According to the scheme, two ways of straw covering and film covering are combined in a specific sequence and specific time to perform stacking continuous covering, and thus, a significant control effect on invasive weeds, such as bidens pilosa L. and the like, is significant; moreover, not only can the bidens pilosa L. above the ground be eliminated, but also underground rhizomes and seeds thereof can be further killed, inactivated and reduced, so that the control effect is more lasting; meanwhile, soil fertility can also be enhanced after the straw, the bidens pilosa L. and the like decompose; and in addition, by employing the technical scheme of the invention, mechanical weeding is notneeded, labor intensity is low, cost is low, environmental pollution is not generated, the straw can also be recycled, and the application prospect is good.

The invention discloses a method used for treating urban river and lake algal bloom, and especially relates to a formula of an algae inhibitor, and an application method thereof. The algae inhibitor is a water solution of isothiazolone, dichloroisocyanurate or trichloroisocyanurate, polyhexamethyleneguanidine chloride, and inorganic salt. The mass ratio of the materials is 0.5%-5%:0.1%-2.5%:0.05%-1%:0.0001%-0.005%. During a flood season, the algae inhibitor is added to a water body requiring treatment every 3-15 days; when rainfalls such as a moderate rain or a more severe rain occur, the addition frequency is appropriately increased. The dosage amount of the algae inhibitor is 0.002-0.05kg/m<3> each time. With the algae inhibitor and the application method provided by the invention, algae amount in water bodies can be effectively reduced, and occurrence of algal bloom can be effectively avoided.

The invention discloses novel application of salicornia europaea and a root extractive thereof. The salicornia europae (Salicornia europaea L.) and the root extractive thereof provided by the invention are used for inhibiting the algae growth causing red tide and inhibiting the red tide. The algae causing the red tide is selected from at least one of skeletonema costatum, prorocentrum donghaiense and prorocentrum minimum. The method for preparing the root extractive of the salicornia europae comprises the following steps: using an organic solvent as an extractant, and extracting from the root of the salicornia europaea, wherein the organic solvent is selected from any one of petroleum ether, chloroform, methanol and normal butanol. The result of the test shows that four different root extractives of the salicornia europaea can strongly inhibit the growth and the photosynthesis of three kinds of algae; for different algae, the allelopathy strength is different; for the skeletonema costatum, the allelopathy of the petroleum ether phase extractive is the strongest, and IC50 is 1.633 mg/L; for the prorocentrum donghaiense, the function of the chloroform phase extractive is the strongest, and IC50 is 13. 799 mg/L; and for the prorocentrum minimum, the allelopathy is improved along with the increasing of the polarity of the extractive, the function of the methanol phase is the strongest, and IC50 is 1.138 mg/L.

The invention discloses a fluroxypyr-glyphosate dispersible oil suspending agent which is composed of, by weight, 1.5-3.8% of fluroxypyr, 25-40% of glyphosate, 14-25% of a surfactant, 1-2.5% of white carbon black and 30-60% of methyl oleate, wherein the glyphosate, the fluroxypyr, the surfactant and the white carbon black are mixed, and the mixture is sheared and sand-ground to obtain the homogeneous-phase oil suspending agent in micron scale. In the invention, the methyl oleate and the excellent surfactant are employed as carriers so that the dispersible oil suspending agent is spread on surface of weed plants, thereby fully achieving herbicidal function of the glyphosate and effectively inhibiting photosynthesis of the weed. The dispersible oil suspending agent can quickly kill the weeds, increases herbicidal speed from about 15 days to about 7 days, can effectively improve agricultural work efficiency, reduces usage quantity of the glyphosate in unit area by more than a half, effectively reduces herbicidal cost and is more environment-friendly.

The invention discloses an alga control system based on a water surface floating type photovoltaic power generation station. The alga control system comprises a water surface floating device, and a photovoltaic power generation device and an oxygen inflation device which are arranged on the water surface floating device, wherein the floating device is formed by splicing floating single bodies; after the floating single bodies are spliced, complete shielding or incomplete shielding is formed on a water surface; the oxygen inflation device comprises a gas supply system located above the water surface and an aeration device located below the water surface; gas is supplied to the aeration device by the gas supply system; the photovoltaic power generation device is used for supplying power to the gas supply system. According to the alga control system disclosed by the invention, the photovoltaic power generation device, the aeration and oxygen inflation devices and a flow push device are integrally arranged by utilizing the water surface floating device and share the water surface floating device, so that algae are effectively controlled and photovoltaic power generation can be realizedto provide green electric energy; the alga control system has the advantages of cost reduction, good comprehensive benefits, greenness and environment protection.

The invention discloses a method for controlling blue-green algae in aquaculture. The method comprises steps as follows: S1, powdery humic acid is delivered into an aquaculture pond, and the deliveryamount of the humic acid is 1 kg/mu/m water body; S2, a lactic acid bacteria solution and brown sugar are delivered into the aquaculture pond, the delivery amount of the lactic acid bacteria solutionis 3 L/mu/m water body, and the delivery amount of the brown sugar is 4 kg/mu/m water body; S3, S1 and S2 are repeated every other day till the seventh day. With the method, growth of the blue-green algae can be effectively controlled, raw materials are easy to prepare, and the method for controlling the blue-green algae is environment-friendly, safe and efficient.

The invention provides a tear-resistant geo-woven fabric material and relates to the plastic woven bag printing technology field. The provided material is prepared from the following raw materials: 82-86 parts of polypropylene, 1-3 parts of linear polyethylene, 4-6 parts of carbon black master batch, 6-10 parts of polypropylene wax and 0.5-1.5 parts of ultraviolet ray absorber. The beneficial effects are that limitation of geo-material for improving human living environment and raising human living quality is overcome, and wide requirements of the present market to material functions are met. The tear-resistant geo-woven fabric material can be used for vacancy of the landfill, sewage processing, artificial lake, municipal, subway, tunnel, greening, agriculture and aquatic product fields, and replaces traditional plastic mulching films.

The invention discloses a simple and environmentally friendly method for facilitating high yield of duckweed starch. Maleic hydrazide as low-toxicity pesticide with action concentration of 100 ppm iscultured for a short time in 60% of Datko culture solution under conventional culture conditions, and high-level accumulation of the duckweed starch can be facilitated. By the technology, special culture facilities are not required, moreover, treatment steps are simple, and the circumstance that culture media are changed continuously is not required. The residual period of the maleic hydrazide asthe pesticide is short, and environmental pollution and secondary pollution are avoided. 100 ppm of the maleic hydrazide has a remarkable inhibition effect on growth of duckweed, the photosynthetic capacity of the duckweed is facilitated to a certain degree, and accumulation of starch of photosynthetic products is improved effectively. A simple and environmentally friendly practical technology isprovided for industrial development of starch biomass energy by the duckweed.

The invention provides a rural-harmful-liana integrated control method. The rural-harmful-liana integrated control method includes the steps of chemical controlling, wherein a chemical prepared from acomposition of picloram, 2,4-dichlorophenoxyacetic acid, bentazone and sulfometuron-methyl is sprayed onto vines and stems of rural harmful liana according to the applying quantity of 3,000 ml hm<-2>to 5,000 ml hm<-2>, and the leaf withered rate of the rural harmful liana is up to 50% or above; clearing, wherein the rural harmful liana obtained after chemical controlling is cleared to remove thevines and the stems of the rural harmful liana on the ground; ecological controlling, wherein mixed planting of quick-growing species of trees is conducted in a cleared region according to the plantspacing and the line spacing of 1.0 m to 2.0 m*1.5 m to 3.0 m, the trees are cultured for 1 year to 2 years, and growth and spreading of the rural harmful liana are gradually controlled. According tothe rural-harmful-liana integrated control method, the dose of the applied chemical is low, soil pollution is small, the rural harmful liana causing large-area harm can be efficiently killed, a laterecological system of a killing region can be maintained to be stable, and the ecological safety performance is high.