1388results about How to "Achieve sustainable development" patented technology

The present invention relates to a computer simulation system of public security emergency management and a simulation method. A public security emergency management cloud platform is upwards connected with an emergency command platform, is downwards connected with the town and street emergency command systems, is transversely connected with the municipal special emergency command platforms on the basis of integrating the data resources and the communication network resources of the conventional various systems, thereby realizing the monitoring, the prediction, the early warning, the auxiliary decision-making and the command and dispatch, and providing the comprehensive information services for the emergency rescue and command, the accident deduction, the emergency disposal training and the emergency hedge skill training. The public security emergency management cloud platform comprises an emergency command hall, a basic supporting system, a comprehensive information service system and a mobile emergency platform, enables the generation of the security incidents, the natural disasters and the man-made disasters and the loss brought by the security accidents to be reduced, protects the economy, and maintains the sustained steady and coordinated development of the society. By establishing the security risk evaluation and early warning, the simulation system and the simulation method have the very important significance for improving the social public security emergency rescue of our country, the risk evaluation and the comprehensive management.

The invention relates to an integrated fertilization method under the condition of NPKS of double-cropping crops of wheat and corn, comprising the NPKS of wheat to sow corn and the NPKS of corn to sow wheat. In the invention, under the conditions of NPKS of medium and high yield level of wheat and corn which can be harvested twice a year, the fertilization amount per mu is as follows: 25-32kg of N, 13-18kg of P2O5 and 13-18kg of K2O, the higher of the yield of the two crops, the greater of the application proportion of the nitrogen fertilizer therein on the wheat, while the allocation proportion of phosphorus and potassium is slightly different. The integrated fertilization method under the condition of NPKS can not only give consideration to complete and strong seedlings and high and stable yield of the two-cropping rotation crops of wheat and corn, but can also give full play to the positive influence of NPKS to increase soil organic matter and improve soil fertility, eliminating the negative influence, and can further reduce waste and environmental pollution caused by unreasonable input and allocation of chemical fertilizer.

The invention provides a method and a system for real-time monitoring and managing urban water resources, and system equipment capable of finishing the method. The method comprises the steps of: real-time monitoring the urban water resources, real-time evaluating the urban water resources, real-time forecasting the urban water resources, real-time managing the urban water resources, real-time scheduling the urban water resources, and real-time early warning the urban water resources safety. By application of the system and method of the invention, an urban water resources system is scientifically classified and comprehensively analyzed so as to obtain the correct construction and correlations of the urban water resources system; the urban water resources are subjected to centralized management; a unified water resources monitoring-center system platform is established; and a novel water resources monitoring terminal is compatible so as to implement a unified and sustainable-development water resources managing system.

The invention provides a safe and reliable compound conditioner for reducing the heavy-metal mobility and bioavailability of soil or sludge compost and a preparation method thereof. The compound conditioner is a powdery compound prepared by adding heavy-metal auxiliary passivating agent to alkaline agent, wherein, the heavy-metal auxiliary passivating agent includes precipitating agent and absorbing agent; and the compound conditioner comprises the following components by the mixing proportion (weight percentage): 78% to 91% of alkaline agent, 5% to 13% of precipitating agent and 4% to 9% of absorbing agent. The preparation method comprises the following steps: (1) drying and pulverizing one, two or more than two substances among soda-manufacturing waste residue, lime and fly ash and sieving by a 60-mesh sieve to obtain an alkaline powdery substance as the alkaline agent; (2) mixing the alkaline agent, the precipitating agent and the absorbing agent by the above mixing proportion; and (3) drying and pulverizing the mixed products and sieving by a 200-mesh sieve to obtain the powdery compound conditioner. The invention can greatly reduce the environmental risk caused by the prior art and realize the sustainable development of green circular economy, industry and agriculture by recycling the industrial waste at the same time.

The invention discloses pervious concrete of recycled aggregate and a preparation method thereof, and belongs to the technical field of pervious concrete of recycled aggregate. The pervious concrete of the recycled aggregate comprises the following components by mass percent: 71.77-73.16% of coarse aggregate, 18.88-19.04% of cement, 6.58-8.14% of water and 1.21-1.22% of silica fume, wherein the recycled aggregate and the natural aggregate accord with the stone utilization standard II, the mixing amount of the recycled aggregate can be customized according to the actual performance index, the cement is 42.5-level ordinary portland cement, and the mixing amount of the silica fume is 6% of the dosage of a binding material. The preparation method comprises the following steps: agitating, vibrating, molding and floating. The mix proportion is designed by adopting a volume process, and the concrete is prepared according to the scheduled preparation process. By adopting the pervious concrete of the recycled aggregate, on the one hand, the problem of recycling of the waste concrete can be solved, on the other hand, underground water can be effectively supplied, collected and purified, and water resources are repeatedly utilized, so as to relieve the 'heat island effect'.

The invention discloses an exoskeleton robot system for reloading batteries of an electric vehicle. The exoskeleton robot system comprises a wearer motion information acquisition module, a wearer motion signal analysis processing module, an exoskeleton robot control module and an exoskeleton robot mechanical structure module, wherein the wearer motion information acquisition module transmits an acquired wearer EEG (electroencephalogram) signal to the wearer motion signal analysis processing module; the wearer motion signal analysis processing module carries out analysis processing on the wearer EEG signal so as to recognize a motion intention of a wearer, converts the EEG signal into a motion signal and transmits the motion signal to the exoskeleton robot control module; and the exoskeleton robot control module receives the motion signal and can control the exoskeleton robot mechanical structure module to move according to the motion signal. The system provided by the invention is a man-machine integrated mechanical power system closely linked with people, can provide protection, additional power and capability for people, can strengthen human performance, and can enable manipulators to easily finish a challenge task.

The invention relates to high-strength weather resisting steel with Cu2-xS dispersed precipitates, which comprises the following chemical components in percentage by weight: 0.04-0.08% of C, 0.20-0.40% of Si, 0.4-1.0% of Mn, 0.03-0.12% of P, not more than 0.2% of S, 0.01-0.06% of Al, 0.20-0.80% of Cu, 0.40-0.6% of Cr, 0.12-0.40% of Ni, 0.001-0.006% of Ca and the balance of Fe and inevitable impurities. The welding cold crack sensitivity coefficient Pcm is not more than 0.18%. A manufacturing method comprises the following steps of: acceleratedly cooling both sides of a cast belt formed by continuous casting by using a gas and adopting a thin belt continuous casting production technology, wherein the cooling rate is 150-200 DEG C / s; performing the entire double-roller continuous casting process in a closed chamber filled with protective atmosphere; and arranging one to two stands for online hot rolling, wherein the thickness of a finished steel belt reaches 0.6-2 mm. The desulfurization procedure in steel making process can be omitted, and the steel making cost is reduced. The segregation of copper elements is inhibited, meanwhile, a large quantity of dispersed Cu2-xS precipitates can be formed to achieve the effect of dispersion strengthening.

The invention relates to the field of cultivation of crops, and in particular relates to a mushroom cultivation method by taking pecan rush shells as a main culture medium raw material, wherein the mushroom cultivation method disclosed by the invention comprises the steps of manufacturing a culture medium by taking the pecan rush shells as the raw material, inoculating, carrying out fungus sprouting management, and carrying out mushroom rising management and the like. The mixture ratio of culture medium raw materials is rationally controlled; influence of wastes in a pecan industry on the environment is relieved; furthermore, the mushroom cultivation cost is reduced; simultaneously, the mushroom cultivation quality is increased; and green pollution-free mushroom cultivation is realized.

The invention discloses weathering steel, which comprises the following chemical compositions in percentage by weight: 0.06 to 0.12 percent of C, 0.20 to 0.40 percent of Si, less than or equal to 1.6 percent of Mn, 0.08 to 0.22 percent of P, less than or equal to 0.008 percent of S, 0.01 to 0.06 percent of Al, 0.20 to 0.80 percent of Cu, 0.40 to 0.75 percent of Cr, 0.12 to 0.40 percent of Ni, 0.001 to 0.006 percent of Ca and the balance of iron and inevitable impurity elements. The weathering steel is manufactured by a thin strip continuous casting process. The manufacturing process comprises the following steps of: performing deep desulfurization on molten steel, performing composite blowing on the top and bottom of a converter, performing RH vacuum circular degassing process, and simultaneously performing calcium treatment; performing twin-roll continuous casting, and making the temperature of the molten steel in a molten bath not lower than 1,535DEG C; controlling rolling in the reduction ratio of not less than 30 percent; controlling cooling at the speed 30 to 50 DEG C / s; and coiling at the temperature of between 600 and 650 DEG C. The weathering steel of which the texture is acicular ferrite has good weatherability and can be widely applied to structural materials.

The invention belongs to the technical field of livestock breeding and specifically relates to an ecological method of breeding chicken by planting grass under trees. The method includes that a fine forage grass breed which is shade-tolerant, trampling-resistant, strong in stress resistance and applicable to being planted in the forest is selected, and a forest land for grazing the chicken is modified to form a grassland under the trees for grazing the chicken; a contour grass and shrub zone in a stocking land is used for planting the grass, a chicken house is built in the middle of the grassland under the trees for grazing the chicken, zone division is performed for rotation grazing, and zones are separated by biological fences; and Chinese herbal plants are sowed in rotation grazing zones so that the grazed chicken can freely ingest the plants. A scientific evidence is provided for obvious economic benefits and ecological benefits which are achieved by means of rapid development of domestic fowls and effective ecological rehabilitation, wherein the domestic fowls of Hetian chicken and the like are applicable to stocking in forestland. By means of the model for breeding the chicken, high economic benefits are created, parts of the economic benefits are used for investing development of ecological chicken breeding model, and the created economic benefits and the development of ecological chicken breeding model are combined for creating better benefits, and accordingly, a virtuous cycle is achieved, ecological balance is kept, and the sustainable development is effectively achieved.

The invention belongs to the technical field of veterinary microbial additive preparation, and specifically relates to a strain of separated and screened Enterococcus faecium providing significant bacterial inhibition effects for common enteropathogenic bacteria such as staphylococcus aureus, escherichia coli and salmonella in breeding animals, and an application thereof. The probiotic Enterococcus faecium of the present invention is characterized in that: the strain is Enterococcus faecium HDRsEf1, and is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CCTCC NO:M2011031. The probiotic Enterococcus faecium of the present invention has characteristics of fast growth, high acid production capacity, strong stress resistance, safety, disease resistance and growth promotion, and can be used as the microbial feed additive for livestock and poultry feeds.

The invention provides a method for producing biogas by the anaerobic fermentation of mixed blue algae and sludge, which belongs to the technical field of environmental protection purification and waste resource treatment. In the method, the blue algae and the sludge are mixed for the anaerobic fermentation to produce the biogas, and the whole process is completed in an anaerobic reactor; the blue algae and the sludge are mixed in the rector, N2 is introduced to form the anaerobic state, and the blue algae and the sludge are fermented at a temperature of between 35 and 37 DEG C; and in the rector, the blue algae is discontinuously and periodically added, the degradation condition of the material is observed, at the same time, the organic matter concentration of the discharged material and the concentrations of CH4 and CO2 in gas generated from fermentation are measured until the reactor is stably operated. The biogas generated is subjected to desulphurization treatment and supplied to users for combustion or collected for power generation; and the dregs generated are used as a fertilizer for farmlands. The method for producing the biogas by the anaerobic fermentation of the mixed blue algae and the municipal sludge has the advantages of having the effect of answering multiple purposes, thoroughly eliminating algae toxins, combining the blue algae utilization and the treatment of the sludge from a municipal sewage plant, and solving organic pollution problems in both the rural and urban areas.

The invention relates to a method for planting pseudo-ginseng in a high-altitude area. The method is used for introducing the pseudo-ginseng planted in an area with the altitude of 1500-1900m in the prior art to an area with the altitude range of 2000-2600m. The method includes the following steps: step1, selection of a planting environment: such as selection of an ecological environment, selection of terrain and section of soil texture, step2, application of a cold-resistant species group, step3, implementation of a sprouting method for improving planting power of seeds, step4, field production and management: seedbed making, greenhouse establishment, light adjustment and sowing and seedling raising, step 5, film mulching for cold prevention, step 6, reasonable pest control and prevention, and the like. The method serves as guidance for pseudo-ginseng introduction in the high-altitude area. According to the method, the planting environment and a planting area are selected according to ecological characteristics of the pseudo-ginseng, the suitable planting area is scientifically planned, and therefore the method is beneficial to benign development of pseudo-ginseng planting industry and guarantees indigenous genuineness of the pseudo-ginseng planted in a new producing area.

The invention discloses a smelting method of laterite-nickel ore. The method comprises the following steps: pelleting laterite-nickel ore, carbon black and additives; carrying out reducing roasting on the laterite-nickel ore pellets in a heat-accumulation rotary hearth furnace to obtain metalized pellets; and carrying out slag-iron separation on the metalized pellets to obtain nickel iron and tailings. The method can be effectively utilized to prepare the nickel iron product.

The invention relates to a coal mining method and discloses a high-gas multi-roadway no-coal-pillar mining method for solving the problems of high cost and more potential safety hazards caused by unreasonable arrangement of a multi-roadway long-wall working surface of the traditional high-gas mine. The method comprises a main conveying system, an auxiliary conveying system and a ventilation system, wherein the main conveying system comprises a belt roadway at the lower side of the working surface and a centralized rubber roadway in the middle of the working surface; the auxiliary conveying system comprises air inlet roadways at the upper and lower sides of the working surface and an auxiliary conveying roadway in the middle of the working surface; the ventilation system comprises air inlet roadways at the two sides of the working surface, an air return roadway at the upper side of the working surface, and a centralized air return roadway in the middle of the working surface; and the centralized air return roadway is communicated with the air return roadway through an air return roadway notch. According to the invention, four roadways are arranged in a 'three-in and one-return' manner, the loss of coal pillar is reduced, the maintenance workload and potential safety hazards caused by roadway remaining are reduced, and the production cost is remarkably lowered.

The invention discloses a dynamic pre-reclamation method for subsided land caused by exploiting a high seam in a plane mining area, which belongs to the technical field of mining and is used for solving the land reclamation problem of the subsided land caused by unstable subsidence mining. The dynamic pre-reclamation method is carried out when a mining subside is not complete and seeper is not formed; the dynamic pre-reclamation method consists of two stages: engineering design calculation and engineering implementation according to the scale, range and target needed to be reclaimed. The stage of engineering design calculation comprises the steps of: calculating a predicated subsidence, dividing the construction field pieces, confirming the construction parameters and the like. Compared with the prior art of 'first destroying and then controlling', the dynamic pre-reclamation method has the following advantages that the dynamic pre-reclamation realizes the full and effective combination of miming and reclamation, can reduce the reclamation investment, shorten the reclamation period, increase the reclamation benefit, and can promote the sustainable utilization of land resources in a mining area and the sustainable development of the mining area, can effectively ease the deterioration of the ecological environment in the mining area caused by the vegetation deterioration due to the mining subsidence and water and soil loss and most extensively protect the land resources.

The invention relates to foaming agent type shampoo which comprises (30 percent) 20 percent to 40 percent of lauryl alcohol polyoxyethylene ether sulpho succinate monoester disodium salt, (30 percent) 20 percent to 40 percent of lauroyl sodium sarcosinate, 0.1 to 0.5 percent of disodium EDTA, 1 to 5 percent of sodium lactate, (40 percent) 1 to 5 percent of polyquat-7, (30 percent) 2 to 5 percent of acrylate copolymer, 1 to 6 percent of PEG-12 dimethyl silicone, 0.1 to 1 percent of aromatic oil or essence, 0.01 to 0.3 percent of citric acid, and 0.04 to 1 percent of preservative agents, and the rest is deionized water. the foaming agent type shampoo is characterized in that foam is squeezed out through a mousse pump head, and the shampoo is not centralized at the top of the head but applied and diffused to other parts, so that the contact of chemical substances and the scalp can be reduced, the probability of furfur, calvities and balding can be reduced, and the effects of economy, environmental friendliness and no side effect can be achieved.

The invention relates to high-strength thin band steel for cold forming and a manufacturing method thereof. The method comprises the following steps: after discharging a cast band from a crystal roll, cooling the cast band forcibly and uniformly in a mode of spraying dry ice under high pressure; quickly cooling the cast band to be below 1,280 DEG C at the cooling speed of 200-300 DEG C / s; performing austenite on-line recrystallization rolling, wherein the rolling temperature is 1,050 to 1,200 DEG C and the rolling reduction is 20 to 50 percent; and quickly cooling the band steel subjected to hot rolling in an anti-oxidation mode, wherein the anti-oxidation quick cooling speed is 80 to 200 DEG C / s and the reeling temperature is 500 to 600 DEG C. By the method, the high-strength thin band steel for automobile cold forming and with low yield strength and excellent stamping performance can be obtained, can be directly used in a mode of substituting heat for cold, cancels the cold rolling procedure and greatly reduces the production cost.

The invention relates to a shield electro-hydraulic control system comprehensive test platform which is mainly composed of a hydraulic control system, a data collecting and controlling system and control system software. The hydraulic control system main comprises a tool pan or pipe erector or screw conveyer loading simulation system, a tool pan or pipe erector or spiral conveyer driving and controlling system, a pushing loading simulation system, a pushing driving and controlling system and a multi-freedom degree duct piece assembling positioning control system. The data collecting and controlling system is mainly used for monitoring the shield electro-hydraulic control system, meanwhile collecting and recording operation data from various sensors and devices in the test platform in real time, and therefore ensuring smooth launch of various tests such as a tool pan driving simulation and pushing system motion test and a performance test of a pump, a motor and a valve in a hydraulic system unit.

The invention relates to a hair washing method of foaming agent type shampoo. The hair washing method is characterized in that foam is squeezed out through a mousse pump head, and the shampoo is not centralized at the top of the head but applied and diffused to other parts, so that the contact of chemical substances and the scalp can be reduced, the probability of furfur, calvities and balding can be reduced, and the effects of economy, environmental friendliness and no side effect can be achieved.

The invention discloses a medical rubbish harmless resource comprehensive utilization system. A comprehensive utilization method comprises the following steps of: sterilizing and disinfecting medical rubbish at high temperature and high pressure, sorting out disposable syringes, containers, trays and other medical hard plastics and disposable infusion tubes, infusion bags, blood bags, rubbish liquid bags and other medical soft plastics, collecting through splitting and classification, granulating, cleaning, drying and recycling; sorting out common waste plastics, recycling after cleaning, drying and granulating; sorting out paper plastic packaging materials, pulping, dewatering and recovering paper pulp; sorting out syringe needles, scalpels and other metal items and infusion bottles, smears and other glass items, and recycling at specialized rubbish recycling departments; and crushing, dewatering and drying the rest items, sending to produce RDF (Refuse Derived Fuel), and selling the RDF or using the RDF as a fuel of a steam boiler. Medical rubbish is completly recycled at high value. The medical rubbish resources do not emit pollutants during recycling and do not bring any harm to environment.

The invention relates to a production process of an environmental-protection plant energy particle fuel, which is characterized by collecting combustible plant materials as raw materials and then sequentially processing the raw materials by the following steps of: (1) pulverizing: the raw materials are pulverized into powdery particle materials with the particle size less than 2 mm; (2) drying: the pulverized materials are dried so that the water content of the materials is 12%-20% by drying; and (3) extrusion molding: extrusion molding is carried out to the dried materials so that the materials form a solid particle fuel with the density of 1.0-1.4 g / cm<3> through extrusion molding. The invention can be used for processing various combustible plant materials comprising agricultural or forestall wastes and the like into high-efficiency combustible solid fuel particles, thereby solving the problem of considerably increased agricultural (forestall) wastes at present, also relieving the current situation of increasing energy shortage at present and being beneficial to environmental protection and energy saving.

The invention discloses a functional biocatalyst for biogas fermentation and a method for fermenting using the catalyst. The catalyst comprises 1-3 parts of a microbial composite bacterial agent, 100 parts of hydrolase accelerant and 61-329 parts of mineral nutrient accelerant, wherein the mineral nutrient accelerant is one or more of microcrystalline ground phosphate rock, microcrystalline zeolite powder, microcrystalline calcium carbonate powder, urea, phosphate, bentonite and active carbon. The biogas fermentation method comprises the following steps: performing biogas fermentation by using 350-650 parts of poultry excrement, 100-300 parts of inoculum and 163-430 parts of functional biocatalyst while controlling the moisture content of the poultry excrement at 75-85%; and stirring and mixing for fermentation, wherein the concentration of the whole original feed liquid is 7-12%. In the invention, apart from the supplement of the nutritive elements for biogas fermentation, the effects of deodorization and inhibition of pathogenic microorganisms are realized through the functional complementation effect among the adsorption of an adsorbent, ion exchange, biodegradation and membrane filtration so that the biocatalyst is harmless; and moreover, the preparation technology has the advantages of simple process, easiness in operation, good effect, low investment, no pollution and wide application value.

The invention discloses a method for solidifying sludge with a high water content. At first, dredged sludge is collected and stored, basic physical indexes of sludge are measured, the sludge and alkali residues are mixed to form matrix soil; a curing material is added and then is evenly mixed and stirred; then the matrix soil containing the curing agent is transported to a fixed location; the matrix soil is covered and cured for a prescribed period; and finally the mechanical indexes of cured sludge are measured. The optimal ratio of alkali residues to dry sludge is 30-50:100. The curing material comprises following components in percentage by the weight of dry mixed soil: 10 to 25% of mineral powder, 0.1 to 0.5% of super absorbent resin, and 2 to 6% of sodium silicate. The cooperative effect between alkali residues and sludge with a high water content is utilized to form matrix soil; super absorbent resin is used to reduce the water content of sludge, the utilization rate of alkali residues is increased, the solidification cost is reduced, and the solidified soil has the advantages of high early strength and low compressibility and meets the engineering requirements of filling soil.

The invention discloses a lead-zinc smelting slag based geopolymer gelling material and a preparation method thereof and belongs to the technical field of geopolymer. The material is composed of, by mass, 65-72 wt.% of lead-zinc smelting slag, 5-10 wt.% of coal ash, 8-15 wt.% of composite alkali activator, 3-6 wt.% of sulfate activator, 1-3 wt.% of aluminate activator and 10-14 wt.5 of deionized water. The preparation method includes: respectively drying and grinding lead-zinc smelting slag and coal ash, and mixing well with a sulfate activator and an aluminate activator before joint grinding to obtain a ball-milled mixture; adding a composite alkali activator solution into the ball-milled mixture, stirring well, forming, and maintaining to obtain the material. The preparation method is simple, low in energy consumption and free of pollution in the preparation process, and geopolymer has good gelling performance, mechanical performance, corrosion resistance, wear resistance and dry shrinkage resistance.

The invention discloses a method for treating stainless steel pickling waste liquor and recovering iron, chromium and nickel. According to the method, a sodium hydroxide solution is adopted to control the pH of the stainless steel pickling waste liquor to achieve the purpose of recovery of iron, chromium and nickel through fractional precipitation. Because pH ranges of deposition of the iron, chromium and nickel elements are overlapped, part of iron oxide-hydroxide is precipitated firstly in a separation and recovery process, residual iron and chromium elements are co-precipitated out, and then chromium is precipitated and dissolved under the strong alkaline condition to realize final separation of iron and chromium. Due to presence of ammonia water and a reducing agent, the nickel element exists in the form of ions or a nickel ammine complex, is dissolved in the waste liquor, and finally reacts with a sulfide to precipitate NiS. The method has the characteristics of low cost, easiness in control, high separation and recovery rate of the iron, chromium and nickel elements and the like. The method can treat the stainless steel pickling waste liquor effectively, and the natural environment cannot be polluted after emission; the recovered metal elements have the recycling economic benefits, and the method has high application value and important technological innovation meaning.

The invention relates to a rain collection self-pressure irrigation system for loess plateau hilly area step greenhouses, which comprises greenhouses, ground water collection surfaces, water collection flow gathering ditches, water reservoirs and irrigation pipelines, wherein the greenhouses are arranged on the steps of a terraced field, the ground water collection surfaces, the water collection flow gathering ditches, the water reservoirs and the irrigation pipelines are arranged on the steps, the greenhouses comprise greenhouse ceiling water collection surfaces, the water collection flow gathering ditches are arranged along the lower edges of the greenhouse ceiling water collection surfaces, the ground water collection surfaces are in inclined arrangement, the lower sides of the ground water collection surfaces are connected with the collection flow gathering ditches, one sides or two sides of the water collection flow gathering ditches are provided with the water reservoirs, and the irrigation pipelines are arranged in the greenhouses and are connected with the water reservoirs of the previous steps through main pipelines. The greenhouses are built on the terraced field, the collected rain at the previous step of the terraced field is used for irrigating the greenhouse on the next step of the terraced field, the rain resources are sufficiently and reasonably developed and utilized for developing the facility agriculture, and the ecological system is prompted to be converted to the benign circulation.

The invention discloses a method for mechanically harvesting winter rape efficiently with low power consumption. The method comprises the following steps of: A, constructing a rape group suitable for mechanical harvest: selecting the variety suitable for mechanical production, performing mechanical precise-quantity direct seeding when the soil water content is 30 to 40 percent, and constructing an ideal group and a plant type by fertilizer and water application and disease inset pest and weed control; B, adjusting a mature period: spraying a ripener two to three days before the harvest of rape seed ripening stage in the regions of contradictory seasons; C, harvesting at right time: observing and measuring the morphological physiological index of the plant before the harvest of the rape, wherein more than 95 percent of siliques, namely yellow loquat fruits in the cropland are suitable for mechanical harvest; D, mechanically harvesting and measuring loss rate: harvesting by a special rape harvesting mechanism in a combining way in the period suitable for harvest; E, smashing and returning rape straw to the cropland: flooding the straw in water immediately after the harvest of rape, decaying and returning to the cropland. The method is easy and convenient to operate, improves a one-time efficient branch height, reduces the branch number, reduces the thickness of the pod layer, solves the problems of high harvest loss rate, and improves the yield.

The invention belongs to the technical field of crop culture, and discloses a method for interplanting tobacco with soybean, which includes: interplanting tobacco with shade-tolerant, lodging-resistant and mid-late maturing summer soybean; seeding the tobacco on late April of each year by wide and narrow row spacing, wherein wide row spacing is 120cm, narrow row spacing is 80cm, ridges are made in narrow rows, two rows of tobacco are planted on each ridge, and plant spacing is 55cm; and performing no-tillage direct seeding of the soybean in a period from one week before primary tobacco harvest and one week after the primary tobacco harvest, planting two to three rows of the soybean in each wide tobacco row, and manually digging holes for staggered-hole dibble seeding with hole spacing 22-33cm. By making use of difference between spatial niche and time niche of the tobacco and the soybean in terms of light, heat, water and fertilizer, interplanting the tobacco with the soybean and efficiently using solar energy, time-space resource complementary utilization for the tobacco and the soybean is realized, high yield and high quality of the tobacco are promoted for tobacco areas, one cropping of the soybean is added, resource utilization rate and land productivity are improved, and soybean yield is increased.

The invention relates to a parallel floatation selecting method for bauxite desilication that adopts one section or two sections grinding technology to take classification to the bauxite pulp to gain raw and fine class product. The fine class product adopts positive floatation technology, and the raw class product adopts reverse floatation technology after taking or not taking second grinding. The positive floatation mine and the reverse floatation mine could be mixed to form final fine mine, and the positive floatation tail mine and the reverse floatation tail mine would be mixed to form final tail mine. The invention has great advantages and has wide application prospect.