107 results about "Agricultural pollution" patented technology

The invention provides a device for automatically controlling irrigation and water draining of paddy field, and is characterized by comprising a water level control cabinet. A water inlet pipe and a water outlet pipe are arranged at the side wall of the water level control cabinet; an open end through which the water outlet pipe stretches towards the inside of the water level control cabinet is provided with a sealing cover; the sealing cover is connected to the bottom of a floating ball through a digging rope; an electromagnetic relay is arranged at the top of the water level control cabinetand connected with a water pump; an adjusting plate is fixed at the inner side wall of the water level control cabinet; the adjusting plate is contacted with a contact switch of the electromagnetic relay. The invention has the advantages of conservation of time and labour, is simple in operation and adjusts water level of the paddy field according to growth demands of rice, maximally utilizes rainfall and reduces irrigation water use. By controlling water draining, the device provided by the invention can effectively prevent crop water-logging, improve Saline-sodic soils while reducing outputof nutrient substances such as nitrogen, phosphorus and the like due to agricultural drainage and agricultural pollution reducation.

The invention discloses a Ferris wheel type farm, which aims to solve food crisis caused by danger of over population, shortage of farmland, land abandoning, agricultural pollution, weather change and logistics dilemma. The Ferris wheel type farm is characterized in that the Ferris wheel type farm is a greenhouse facility which is arranged on a vertical surface and capable of moving circularly, comprises Ferris wheels, a sail transmission system, a water circulation system, a microclimate planting chambers, movable planting racks, a wind and solar hybrid power generating system, point-of-sale terminals and organism recirculation devices.

The invention discloses an organic compound fertilizer and a manufacturing method thereof. The organic compound fertilizer comprises the following components in parts by weight: 10-15 parts of humic acid, 20-25 parts of crop waste, 5-10 parts of biological microbial inoculant, 10-15 parts of alga fertilizer, 10-15 parts of lime sludge, 5-15 parts of synergist, 5-10 parts of nitrogen fertilizer, 5-10 parts of phosphate fertilizer and 5-10 parts of potassium fertilizer. The manufacturing method comprises the following steps: preparing raw material mixture powder; fermenting to obtain the organic compound fertilizer; and drying, granulating, screening, carrying out vacuum packaging with an aluminum foil, and the like. The biological microbial inoculant is utilized to ferment the agricultural waste, and the fermented agricultural waste is mixed with nutrient substances required by plants to prepare the organic compound fertilizer capable of enhancing the soil fertility and promoting growth of plants grown on the soil; and the organic compound fertilizer can sufficiently recycle the agricultural waste, thereby reducing the agricultural pollution and promoting the agricultural development.

The invention relates to an agricultural pollution-free microbial improving agent for saline-alkali land, belonging to an agricultural pollution-free product and capable of improving saline-alkali land and increasing crop yield. The agricultural pollution-free microbial improving agent for saline-alkali land comprises liquid bacteria and solid material, wherein the liquid bacteria comprise 50-70 parts of Bacillus subtilis, 5-15 parts of photosynthetic bacteria, 5-15 parts of yield-increasing bacteria, 5-15 parts of lactic acid bacteria, 5 parts of actinomycetes and 5 parts of leftover from bone meal plant; and the solid materials comprise 50-70 parts of lignite powder, 10-30 parts of leftover waste residue from sulfuric acid production, 10 parts of lower chimney soot from an electric power plant, 10 parts of whit clay, 2 parts of matrine and 3 parts of tobacco stems. The agricultural pollution-free microbial improving agent is prepared by the following steps of: pumping the liquid bacteria to a stirring tank according to a ratio, mixing and stirring to obtain composite bacterial liquid, pulverizing the solid materials by a pulverizer, screening with a 100-mesh sieve, sterilizing, delivering the composite bacterial liquid and the sterilized solid materials to a granulator for granulating, drying, cooling and screening, and checking and bagging finally.

The invention relates to the fertilizer technical field, in particular to a compound conditioned medium for the injection of woody plants and a preparation method thereof; the compound conditioned medium contains various nutrient elements and physiological amendments of plants and the compound conditioned medium is prepared by mixing urea, potassium nitrate, calcium nitrate, potassium dihydrogen phosphate, zinc sulfate, magnesium sulfate, manganese sulfate, copper sulfate, boric acid, disodium ethylenediaminetertraacetate, naphthylacetic acid and indolebutyric acid together and adding water; the compound conditioned medium of the invention can not only strengthen the root activity of woody plants such as the rooting speed, rooting rate and the like, but also satisfies the desired nutrient elements of trees, improves the nutrient use efficiency, reduces the agricultural pollution and has low cost, simple production and high efficiency production.

The invention discloses a measurement method of a residual amount of a residual plastic film on a farmland soil surface layer. The measurement method comprises the following steps: carrying out image photographing on a measurement region by adopting a lower end image sensor of an unmanned aerial vehicle; transmitting a wireless image signal by an image transmitter on the unmanned aerial vehicle according to photographed image information; acquiring the image signal by an image receiver and inputting the image signal into a computer system; changing an acquired farmland image into a gray image; setting a gray distinguishing threshold value of the residual plastic film and carrying out residual plastic film image division; carrying out binarization processing on the image; carrying out quantitative statistic addition on a binarized residual plastic film shape gray value through closure operation and erosion operation; and finally, obtaining a quantitative value of the residual amount of the residual plastic film on a measured regional farmland surface. A result shows that compared with a manual measurement method, the error degree mean value of an image identification method is 4.82% and the consistency of the measurement precision is relatively good; and with regard to field data of agricultural pollution, the measurement precision is completely met. The invention further discloses a measurement system of the residual amount of the residual plastic film on the farmland soil surface layer. The measurement system comprises the unmanned aerial vehicle, the image sensor, the image transmitter, the image receiver and a computer.

The invention provides a pseudomonas sp. strain 2-29, which belongs to the class of pseudomonas sp. and was collected with a collection number of CGMCC No.3331 in China General Microbiological Culture Collection Center (abbreviated as CGMCC) of Institute of Microbiology Chinese Academy of Sciences located on Datun road in Chaoyang district of Beijing, on October 2009. The invention also provides the use of the pseudomonas sp. strain 2-29 in the prevention and control of tomato ralstonia solanacearum. For solving the problem that an effective chemical for treating tomato ralstonia solanacearum lacks at present and the problem that pseudomonas sp. is susceptible to generating medicament resistance to chemical pesticide, a strain having an antagonistic effect on tomato ralstonia solanacearum is screen through screening tomato ralstonia solanacearum antagonists and the test of the control effect of the tomato ralstonia solanacearum antagonists; on this basis, field tests can be further performed for developing a mature microbial fertilizer; and thus, the pseudomonas sp. strain 2-29 has a great significance for reducing the use of a large amount of fertilizer and pesticide and reducing agricultural pollution sources.

The invention relates to the field of agricultural pollution restoration, in particular to a restoration method special for oryza sativa L. polluted by polycyclic aromatic hydrocarbon phenanthrene. The method specifically relates to application of phomopsis liquidambari HQ285146 in preparation of a polycyclic aromatic hydrocarbon phenanthrene degradation restoration agent special for oryza sativa L. The phomopsis liquidambari HQ285146 is activated and cultivated on a fluid nutrient medium or a solid medium containing potato dipping juice to obtain the oryza sativa L. restoration agent. Afterwards, the restoration agent is used for seedling dipping and is directly added into rhizosphere soil during transplant of oryza sativa L., and phenanthrene inside/outside oryza sativa L. bodies is effectively removed. Production of the agricultural phenanthrene pollution restoration agent is not affected by environment, the production period is short, the production process is simple, production time and yield are easy to control, and the effect is obvious. The method of plant dipping and direct agent adding into soil is adopted, the agent can act on polluted soil and plants, the method is simple and easy to operate, dosage is small, the cost is low, and the good effect can be achieved.

The invention discloses a method for constructing an ecological regulation and storage lake for urban rivers, wherein the ecological regulation and storage lake is mainly used for flood regulation andstorage of urban rivers and purification of river course water seriously polluted by resident living and agriculture. According to the main technical scheme, a regulation and storage lake composite water ecosystem is constructed, wherein the constructing method comprises six sub-projects, the six sub-technologies respectively comprises: basement improvement, submerged plant community construction, fish community construction, macrozoobenthos community construction, micro-ecological purification system construction and system optimization adjustment, wherein the submerged plant community as the primary producer is the core part of the water ecosystem; and at the late stage, the optimization adjustment measures are performed by monitoring and observing the system, such that the regulation and storage lake ecosystem is gradually converted into the stable and natural state, and finally the stable regulation and storage lake water ecosystem is formed so as to achieve the state comprising stable and diversified species community, clear water body and good landscape for a long time.

The invention provides simulation and analysis methods for the influence of different agricultural ammonia emission scenarios on PM2.5 concentration. The method mainly comprises three parts: improvingammonia emissions from the farmland fertilization based on an EPIC mode, developing an agricultural pollution source emission information processing system, and establishing the newest agricultural source pollutant emission list; establishing an air quality simulation and forecasting model considering the influence of the agricultural ammonia, and continuously improving the simulation and forecasting level of PM2.5; and calculating the contribution of agricultural emission sources to the PM2.5 in the main agricultural region of China and providing a corresponding control strategy. The invention utilizes the RSM/CMAQ technology, combines the relevant control technology and the future development plan, makes assumptions on the future control strategy and the corresponding control strength of the regional agricultural ammonia emissions, proposes corresponding solutions, and analyzes and calculates the list of agricultural sources and anthropogenic ammonia emissions generated under various control modes. According to the simulation and analysis methods, the local ammonia emission reduction prospect and the effect thereof can be evaluated, and valuable references are provided.

The invention provides an agricultural sewage management system and management method. The system comprises a site monitoring device, a cloud server, a monitoring center and an operation and maintenance terminal, the station monitoring devices are arranged at all monitoring stations and used for collecting agricultural pollution data of the monitoring stations and uploading the agricultural pollution data to the cloud server through the network. The cloud server is used for storing the agricultural pollution data, judging whether the working state of the monitoring station is abnormal or not according to the agricultural pollution data, and sending maintenance information to the operation and maintenance terminal under the abnormal condition; and the monitoring center is used for sending adata collection request to the cloud server through a network and receiving the agricultural pollution data returned by the cloud server. According to the invention, automatic monitoring of the agricultural pollution data of each monitoring station is realized, and when a fault occurs, the operation and maintenance terminal can be discovered and notified in time. Therefore, on one hand, the frequency of manual inspection at each station is saved, and on the other hand, when a fault occurs, automatic order sending is realized through intelligent scheduling, and the fault can be found in time.

The invention provides a construction method of an ecologically-friendly park for systematically controlling agricultural pollution. The method comprises constructing infrastructures and optimizing a production mode and particularly comprises the following steps of: constructing a catchment ditch and an ecological ditch on the inner side and the periphery of a farmland respectively; applying fertilizers including compost pig manure and a chemical fertilizer during crop cultivation and collecting produced runoff into the ecological ditch through the catchment ditch for treatment; mixing a green feed and a concentrated feed produced by crop cultivation in a certain ratio for feeding live pigs and applying straw to composting and field returning; and introducing manure and urine produced by live pig cultivation into a marsh gas tank for fermenting, wherein produced marsh gas is used for supplying energy for people in daily life and the pig manure is composted for fertilizer application to crop cultivation. Through the method, loss of pollutant is controlled comprehensively, the aim of reducing agricultural pollution is fulfilled, investment is small and multiple benefits are achieved; moreover, the method is suitable for multiple conditions.

The invention discloses a laser control deep scarification, land preparation and residue plastic film pickup all-in-one machine. The laser control deep scarification, land preparation and residue plastic film pickup all-in-one machine comprises a rack and a deep scarification mechanism, a traction mechanism is fixedly connected to the front portion of the rack, the deep scarification mechanism comprises a deep scarification frame and a deep scarification shovel fixedly connected to the lower portion of the deep scarification frame, the top of the deep scarification frame is fixedly connected to the lower portion of the rack, and the laser control deep scarification, land preparation and residue plastic film pickup all-in-one machine further comprises a pickup mechanism, a land flatting mechanism, a suppressing roller, a laser receiver and a hydraulic control device. The laser control deep scarification, land preparation and residue plastic film picking all-in-one machine integrates deep scarification, pickup, land leveling, suppressing and the like, the farmland working procedures like the deep scarification, the pickup, land leveling and suppressing can be completed simultaneouslysimply when work is conducted once on arable land in spring or autumn every year, so that arable land reaches the state to be sowed, the porosity and the flatness of soil are effectively guaranteed,the frequency of agricultural machine field work is reduced, the agricultural machine work cost can be reduced by 40%, the cost is reduced and the effect is improved by 10% or above, and the machine has the advantages of saving the farming season, improving the soil quality, thoroughly eradicating agricultural pollution and the like.

The invention belongs to the field of agricultural pollution prevention and control, and in particular relates to a greenhouse soil nitrate pollution modifying agent used for comprehensively modifying greenhouse soil nitrate pollution and effectively preventing and controlling underground water nitrate pollution risk in intensive vegetable planting regions, and a preparation method and a using method thereof. The greenhouse soil nitrate pollution modifying agent consists of composite liquid and effective microorganism (EM) bacteria liquid with equal mass ratio, wherein the composite liquid is prepared from sodium humate and dicyandiamide through composite proportioning; the EM bacteria liquid is bacterial liquid of fermented EM bacteria; and the composite liquid and the EM bacteria liquid are mixed according to the mass ratio of 1:1. The composite liquid and the EM bacteria liquid are combined to be irrigated and applied to soil, so that the greenhouse soil nitrate pollution can be prevented and controlled through biological and chemical control technological means, the nitric nitrogen content of the greenhouse soil can be reduced by above 10 percent, and the nitrogen utilization ratio of crops can be increased by above 15 percent.

The invention relates to a river bank type infiltration system and method with water restoration function, comprising: a water diversion facility with a forebay, a plurality of infiltration tanks arranged in steps along both sides of the river bank are arranged downstream of the water diversion facility, and the inlet of the infiltration tank is upstream Garbage grids are set up, and respective inlet and outlet gates are set at the inlet and outlet of each filter tank; each outlet gate is connected to the outlet tank connected with the river, and the infiltration tank is sequentially equipped with porous water-retaining parapets, Front permeable section, multi-stage percolation section, rear permeable section, perforated plate. The infiltration system is located on the bank of the river or lake, combined with the existing water conservancy project, and connected with the shore topography, will not affect the normal operation of the original water conservancy project, while maintaining and improving the water quality of the downstream river, it can also be combined with the river bank Renovation, planting green plants on the upper part, beautifying the environment. The system has low cost and is suitable for purifying heavily polluted urban rivers, deep denitrification and dephosphorization of tail water of sewage treatment plants, and control of agricultural non-point source pollution.

The invention provides a comprehensive treatment and recycling device for agricultural polluted wastewater. The comprehensive treatment and recycling device comprises a treatment tank, a reservoir anda drainage ditch, wherein the drainage ditch is communicated with the side wall of the top end of the treatment tank; a connecting pipe is arranged between the treatment tank and the reservoir; an electric valve is installed on the connecting pipe; two fixed columns are fixedly and symmetrically arranged on the two sides of the upper surface of the treatment tank; and a control switch block is installed on the outer side surfaces of the fixed columns. The comprehensive treatment and recycling device for agricultural polluted wastewater in the invention can be directly built near a sewage source, such as a breeding factory and a household product processing factory; the treatment tank is communicated with the drainage ditch, so the agricultural polluted wastewater can be directly discharged into the treatment tank for treatment, treatment cost is low, treatment speed is high, treated wastewater can be directly discharged into the reservoir for agricultural water conservancy irrigation,and use is convenient; and a filter cartridge can ascend and descend under the driving of a stepping motor and a drive screw, so a filter screen is convenient to clean and replace, operation is easy,and maintenance is simple.

The invention discloses a standard data-based agricultural pollution source in-water body load measuring and calculating method. The method comprises the following steps: acquiring rainfall, water quality, DEM, land utilization, soil texture, soil type and social economic data of a to-be-researched region; according to the hydrological data of the to-be-studied region, dividing the to-be-studied region into a plurality of drainage basin partitions; calculating a pollutant influence factor of each drainage basin partition; carrying out standardization treatment on the pollutant influence factors of each drainage basin subregion; calculating a water inlet body coefficient of each drainage basin partition according to the pollutant influence factors after standardization treatment; obtaining the discharge amount of agricultural source pollutants in the to-be-studied region, and calculating the water-entering load amount of the agricultural source pollutants; and selecting a specific drainage basin partition, and verifying the water inlet body load capacity obtained by calculation and an actual measurement result. The method can solve the problem that the prior art lacks a method for effectively calculating the load capacity of pollutants in a large-scale region in the water body, and is good in consistency, reliable in calculation and large in range.

The invention discloses an agricultural pollution processing system based on pesticide kinds. The agricultural pollution processing system based on pesticide kinds comprises a detection device, a purifying device, a mobile device, and a processing device; the processing device comprises an input device, a drive device, a navigation device, and an analysis device; the detection device comprises a collecting rod, an adsorption pipe, and a picking up pipe; one side of the collecting rod is provided with a cutting knife; the adsorption pipe and the picking up pipe are arranged below the cutting knife, and a plurality of detection pipes are arranged in the picking up pipe; one side of each detection pipe is provided with a push rod; the purifying device comprises a machine body, a stretching arm, and a storage chamber; one side of the stretching arm is provided with an adsorption port, a digging shovel, a connecting pipe, and a filter screen; a separating plate is arranged in the storage chamber; the storage chamber is divided into a soil processing chamber and a liquid processing chamber; a disinfection lamp and a drying lamp are arranged in the soil processing chamber; a vibrating sieving screen and a photocatalyst filter screen are arranged below the drying lamp; a filter layer is arranged in the liquid processing layer; a heating pipe is arranged below the filter layer; one sideof the heating pipe is provided with a first outlet; the movable device is movable caterpillar bands, and is arranged at the lower side of the machine body.

The invention discloses an organic fertilizer for citrus reticulata. The fertilizer comprises following components in parts by weight, 20 to 35 parts of humic acid, 1 to 3 parts of borax, 30 to 50 parts of weathered coal, 60 to 80 parts of edible fungi waste residues, 50 to 70 parts of silkworm excrement, 80 to 100 parts of straws, 1 to 3 parts of microorganism, 15 to 25 parts of talcum powder, 20 to 25 parts of peanut-oil press cake, 15 to 30 parts of core cobs and 10 to 15 parts of tea seed powder. The organic fertilizer for citrus reticulata has the advantages of low cost, easily obtained raw materials, and capabilities of comprehensively using agricultural wastes, reducing agricultural pollution, increasing organic matters of soil due to the humic acid, and enabling soil to maintain organic elements in a sustained way.

The invention provides a cultivated land resource asset ecological value assessment method and model. The method comprises the following steps: acquiring basic information (including a cultivated land type of a cultivated land area to be assessed) of the cultivated land area to be assessed; calculating the positive ecological value of cultivated land resource assets in the cultivated land area to be assessed based on the type of cultivated land and and the negative ecological value of arable land resource assets, wherein the value comprises food production value, gas regulation value, air purification value, water conservation value, soil conservation value, nutrient recycling value, biodiversity value, and landscape aesthetic value; the negative ecological value of arable land resource assets comprise agricultural pollution negative ecological value, greenhouse gas emission negative ecological value and agricultural water resource consumption negative ecological value; and calculating the cultivated land resource asset ecological value of the cultivated land area to be evaluated according to the cultivated land resource asset positive ecological value and the cultivated land resource asset negative ecological value. The mode solves the problem that the economic value is more than the ecological value in cultivated land resource asset ecological value assessment (or accounting).