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41results about How to "Improve safety quality" patented technology

Fertilizing method for reducing cadmium content of leafy vegetables in overproof cadmium vegetable plot

The invention discloses a fertilizing method for reducing the cadmium content of leafy vegetables in an overproof cadmium vegetable plot, which comprises the following steps: (1) taking a carbonized rice husk as a base fertilizer, applying before the leafy vegetables are sowed and uniformly raking with soil or embedding the carbonized rice husk into a planting trench before the leafy vegetables are transplanted; and (2) taking an inorganic fertilizer as an additional fertilizer, and spray-applying the inorganic fertilizer rich in nitrogen, phosphorus and potassium taken as the additional fertilizer after the final singling or the survival of the leafy vegetables. In the step (1), 250-750 kg of carbonized rice husk is applied for each mu. In the step (2), the inorganic fertilizer is uniformly divided into 3 or 4 parts and is dissolved into water to be spray-applied, the inorganic fertilizer is sprayed for the first time after the final singling or the survival of the leafy vegetables, is sprayed once every 5-10 days and is totally sprayed for three or four times, and the inorganic fertilizer provides N5-15 kg, P2O51.6-4.0 kg and K2O55.0-15.0 kg for each mu. The fertilizing method has the benefit that as the carbonized rice husk and the inorganic fertilizer are applied together, the safe quality of the leafy vegetables is improved, and the content of Cd in the leafy vegetables is reduced.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

Printing film-laminated metal plate and production method thereof

The invention provides a printing film-laminated metal plate and a production method thereof. The printing film-laminated metal plate comprises a metal substrate, a printing composite film and an inner film, wherein the metal substrate is positioned between the printing composite film and the inner film so as to form no-adhesive attachment; the printing composite film is formed by dry composition between an intaglio-printing film and a polyester film modified by isophthalic acid; one side of the intaglio-printing film with printing patterns is attached with the acid-modified polyester film, and one side of the intaglio-printing film attached with the metal substrate is the acid-modified polyester film; and the inner film is made of no-printing-pattern film or intaglio-printing film, and one side of the intaglio-printing film with the printing patterns is attached with the metal substrate. The invention also provides the production method of the printing film-laminated metal plate. The printing film-laminated metal plate provided by the invention has the advantages that the printed patterns are sealed between the film and the metal substrate, so that the safety of the printing film-laminated metal plate is obviously improved and the processing process is simplified.
Owner:ORG TECH CO LTD

Cultivation method for using LED light source to quickly and effectively reduce nitrate content in Brassicacampestris ssp.chinensis Makino

The invention discloses a cultivation method for using an LED light source to quickly and effectively reduce the nitrate content in Brassicacampestris ssp.chinensis Makino. The method comprises the first step of preparation of seedlings, wherein Brassicacampestris ssp.chinensis Makino seeds are firstly put into clean water to be soaked, then the soaked seeds are put into a sponge seedling raising block which is soaked by water, and after two true leaves of the seedlings totally spread, the seedlings are transplanted into a water planting box to be subjected to water planting; the second step of LED light source treatment, wherein when the Brassicacampestris ssp.chinensis Makino grows to 8-16 true leaves, the Brassicacampestris ssp.chinensis Makino is subjected to treatment for 10-48 hours through continuous illumination under the LED light source, the temperature at day is 22-25 DEG C, the temperature at night is 18-20 DEG C, the light intensity is set to be 100-150 micromole.m<-2>s<-1>, and the relative humidity is controlled to be 60%-80%. According to the cultivation method for using the LED light source to quickly and effectively reduce the nitrate content in the Brassicacampestris ssp.chinensis Makino, the quality of the Brassicacampestris ssp.chinensis Makino is improved, the nitrate content can be quickly and effectively reduced within a short time, the safety quality is improved, the energy is saved, and the environmental protection is achieved.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES

Grounding sequence lock

The invention discloses a grounding sequence lock. The grounding sequence lock comprises a grounding connecting piece used for being connected with a grounding grid, wherein the grounding connecting piece is provided with a connecting piece, a grounding clamp is connected with a grounding rod through a grounding wire, the grounding rod is provided with a grounding hook, a hinge shaft is arranged on the side face of the connecting section, and a pressure control rod is hinged to the hinge shaft. A grounding control lock is arranged on the grounding connecting piece, a rotating shaft of the grounding control lock can rotated to be switched between an unlocking position and a locking position, an unlocking key can be pulled out only in the unlocking position, and the rotating shaft of the grounding control lock is connected with a grounding control hook. A spring is arranged between the pressure control rod and the grounding connecting piece, a three-phase-interlocking locking device is arranged on the grounding rod, and the interlocking key further can open or lock the three-phase-interlocking locking device. The grounding sequence lock has the advantages of being convenient to install, flexible in use and capable of controlling and guiding a grounding operator to accurately perform grounding operation, eliminates potential safety hazards, meets sequence requirements for assembling and disassembling the grounding wire through safe technical measures and meets needs for site operation.
Owner:溧阳市科燕新技术开发所 +3

Crop rotation method capable of reducing content of cadmium in leaf vegetables

The invention discloses a crop rotation method capable of reducing content of cadmium in leaf vegetables. According to the crop rotation method, aquatic leaf vegetables and dry-farmed leaf vegetables are cultured in a paddy-upland rotation manner in a cadmium overproof vegetable field with pH of smaller than 7. The crop rotation method particularly comprises the following steps: (1) planting the first batch of aquatic leaf vegetables in a manner of waterflooding in the whole growth period; (2) after the aquatic leaf vegetables are harvested and when the wetness of the soil is suitable, planting the dry-farmed low-Cd-accomulation leaf vegetables and spraying water during the growth period of the leaf vegetables according to the growth requirements of the leaf vegetables; (3) after the dry-farmed leaf vegetables are harvested, repeating the step (1) and the step (2) and so on; (4) during the growth period of the leaf vegetables, carrying out fertilization in a conventional leaf vegetable fertilizing manner. According to the crop rotation method, the content of Cd in the leaf vegetables can be obviously reduced in an aquatic leaf vegetable and low accumulation type dry-farmed leaf vegetable crop rotation mode; the leaf vegetables are enabled to accord with the national food hygiene standards; the crop rotation method has the advantages of convenience for implementation, simplicity for operation and the like.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

Peanut shell activated carbon for removing toxins in peanut oil and preparation method thereof

The invention belongs to the technical field of activated carbon, and particularly relates to a peanut shell activated carbon for removing toxins in peanut oil and a preparation method thereof. The peanut shell activated carbon is prepared by carrying out pretreatment, extrusion molding, carbonization and activation on peanut shells. The preparation method comprises the following steps: pretreatment: carrying out hydrothermal treatment on the peanut shells, and pulverizing; extrusion molding: carrying out pressure molding with a granulator to obtain cylindrical granules of which the diameters are 4-8 mm and the lengths are 10-20 mm; heating, cooling in the absence of oxygen, crushing and screening to control the granule diameters at 1-3 mm; and introducing isothermal superheated vapor, storing in a sealed environment, and cooling to obtain the finished product. The activated carbon is prepared from the peanut shells which are accessible raw materials, thereby implementing utilization of waste peanut shells; and the obtained peanut shell activated carbon has the advantages of large specific area and small pore size, can simultaneously adsorb benzopyrene, aflatoxin and other harmful substances, and can prevent the peanut oil from oxidative rancidity.
Owner:山东沂蒙山花生油股份有限公司

Biogas slurry concentrated solution compound fertilizer and method for cultivating vegetables by using same

The invention relates to a biogas slurry concentrated solution compound fertilizer and a method for cultivating vegetables by using the same. The biogas slurry concentrated solution compound fertilizer is prepared from the following raw materials in parts by weight: 950 to 1050 parts of a biogas slurry concentrated solution, 90 to 110 parts of a nitrogenous fertilizer, 240 to 260 parts of a phosphatic fertilizer and 100 to 120 parts of a potash fertilizer. The biogas slurry concentrated solution is prepared by the following steps: (1) introducing biogas slurry into an aerobic bioreactor, and treating under the action of aerobic activated sludge to obtain aerobic effluent; (2) separating the aerobic effluent through an ultrafiltration membrane to obtain ultrafiltration membrane effluent; and (3) concentrating and separating the effluent of the ultrafiltration membrane through a reverse osmosis membrane to respectively obtain a concentrated solution and a permeate solution, and the concentrated solution is the biogas slurry concentrated solution. The biogas slurry concentrated solution compound fertilizer can significantly improve the yield and nutritional quality of pakchoi and increase the content of chlorophyll, soluble sugar, vitamin C and trace elements of the pakchoi; the content of nitrate in the pakchoi can be reduced, heavy metal accumulation in the pakchoi is avoided, soil heavy metal pollution is small, and the application prospect is wide.
Owner:BIOGAS SCI RES INST MIN OF AGRI +1

Method for treating biogas slurry

The invention provides a method for treating biogas slurry, which comprises the following steps: introducing biogas slurry into an aerobic bioreactor, treating under the action of aerobic activated sludge to obtain aerobic effluent, wherein the inoculation amount of the aerobic activated sludge is 10-14 g / L, the hydraulic retention time is 1-3 days, the dissolved oxygen concentration is 3.8-4.2 mg / L, and the aeration rate is 0.4-2.0 L / min. The pH of the aerobic effluent treated according to specific parameters is reduced, the SS and turbidity removal rate of the effluent is maximum, the content of various nutrient elements is highest, and the removal rate effect of organic matters is optimal. The aerobic effluent is separated through an ultrafiltration membrane, so that SS and turbidity inthe biogas slurry can be further reduced, the separated effluent is concentrated through a reverse osmosis membrane, so that the content of various nutrient elements and humic acid in the RO concentrated solution can be effectively increased, and meanwhile, the concentration of heavy metal ions in the RO concentrated solution cannot be increased. The obtained RO permeate liquid can be directly discharged after reaching the standards. The method provided by the invention effectively combines biogas slurry resource recovery and up-to-standard discharge, and has a wide application prospect.
Owner:BIOGAS SCI RES INST MIN OF AGRI +1

Carbon regulator used for reducing concentration of nitric acid in soil

InactiveCN108841389AReduce nitric acid concentrationRestore production potentialAgriculture tools and machinesOrganic fertilisersActive enzymePlant nutrition
The invention relates to the technical field of regulation of the concentration of nitric acid in soil and discloses a carbon regulator used for reducing the concentration of nitric acid in soil. Thecarbon regulator comprises a biological organic mixture, a decomposing agent and active enzyme, wherein the biological organic mixture comprises corn straw particles, soybean straw particles, wheat straw particles and cotton husk particles, the corn straw particles, the soybean straw particles, the wheat straw particles and the cotton husk particles are put in different crushers to be crushed respectively and then put in a mixer in proportion to be mixed, and the crushed corn straw particles, soybean straw particles, wheat straw particles and cotton husk particles are mixed with the decomposing agent and the active enzyme in proportion. Relatively mature theories of soil science, microbiology and plant nutriology are comprehensively introduced to soil management practice of a protection area, a new method and a new way which are economically feasible and ecologically safe are provided to solve the newly appearing problem about soil secondary salinization, obstructing facility agriculture development, in the protection area, and the production potential of the soil of the protection area is recovered.
Owner:JIANGSU FUDA STRAW UTILIZATION CO LTD

Fruit bagging technique for increasing the security quality and marketing quality of tomatoes

The invention relates to a fruit bagging technique for increasing the security quality and marketing quality of tomato, aiming at the problems of more plant diseases and insect pests, overproof pesticide residue, faeces of pests, dust and soil pollution, serious tomato cavity and the like. The new technique screens out agreeable tomato fruit bag materials (film paper) and fruit bag configuration by taking non-polluted tomatoes as the breakthrough points and is matched with the assorted bagging technique. After flowers of the tomatoes drip, the tomatoes are excised timely during petals wilting, and the residual mark of the petals can not be remained; when the tomato fruit grows till the diameter is about 2-3 cm (egg yolk size), the whole fringe is bagged, and every fringe has three to four fruits. After the tomatoes are bagged, the bag mouths are sealed with a staple or a clip or a pin. The fruit bagging technique is beneficial for increasing the security quality and marketing quality of tomatoes, preventing the infection of gray mold and the generation of cavity fruit, and the ripening of the fruit ahead of time for 5-8d, and provides theoretical foundation and technical support for further increasing the harmful production level of the tomatoes.
Owner:HEBEI AGRICULTURAL UNIV.

Ground Sequence Lock

The invention discloses a grounding sequence lock. The grounding sequence lock comprises a grounding connecting piece used for being connected with a grounding grid, wherein the grounding connecting piece is provided with a connecting piece, a grounding clamp is connected with a grounding rod through a grounding wire, the grounding rod is provided with a grounding hook, a hinge shaft is arranged on the side face of the connecting section, and a pressure control rod is hinged to the hinge shaft. A grounding control lock is arranged on the grounding connecting piece, a rotating shaft of the grounding control lock can rotated to be switched between an unlocking position and a locking position, an unlocking key can be pulled out only in the unlocking position, and the rotating shaft of the grounding control lock is connected with a grounding control hook. A spring is arranged between the pressure control rod and the grounding connecting piece, a three-phase-interlocking locking device is arranged on the grounding rod, and the interlocking key further can open or lock the three-phase-interlocking locking device. The grounding sequence lock has the advantages of being convenient to install, flexible in use and capable of controlling and guiding a grounding operator to accurately perform grounding operation, eliminates potential safety hazards, meets sequence requirements for assembling and disassembling the grounding wire through safe technical measures and meets needs for site operation.
Owner:溧阳市科燕新技术开发所 +3

Fertilizing method for reducing cadmium content of leafy vegetables in overproof cadmium vegetable plot

The invention discloses a fertilizing method for reducing the cadmium content of leafy vegetables in an overproof cadmium vegetable plot, which comprises the following steps: (1) taking a carbonized rice husk as a base fertilizer, applying before the leafy vegetables are sowed and uniformly raking with soil or embedding the carbonized rice husk into a planting trench before the leafy vegetables are transplanted; and (2) taking an inorganic fertilizer as an additional fertilizer, and spray-applying the inorganic fertilizer rich in nitrogen, phosphorus and potassium taken as the additional fertilizer after the final singling or the survival of the leafy vegetables. In the step (1), 250-750 kg of carbonized rice husk is applied for each mu. In the step (2), the inorganic fertilizer is uniformly divided into 3 or 4 parts and is dissolved into water to be spray-applied, the inorganic fertilizer is sprayed for the first time after the final singling or the survival of the leafy vegetables, is sprayed once every 5-10 days and is totally sprayed for three or four times, and the inorganic fertilizer provides N5-15 kg, P2O51.6-4.0 kg and K2O55.0-15.0 kg for each mu. The fertilizing method has the benefit that as the carbonized rice husk and the inorganic fertilizer are applied together, the safe quality of the leafy vegetables is improved, and the content of Cd in the leafy vegetables is reduced.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

Allium mongolicum regel compound preservative containing nobiletin, and preparation method and use method of allium mongolicum regel compound preservative

The invention relates to the technical field of food preservation, and discloses an allium mongolicum regel compound preservative containing nobiletin. The allium mongolicum regel compound preservative is mixed by the nobiletin, chitosan and water. Compared with the prior art, the allium mongolicum regel compound preservative has the following beneficial effects that a technology is simple and operation is convenient, the utilization of the compound preservative has a better storage effect than the utilization of the utilization of the preservative containing single nobiletin and chitosan, a storage period can be prolonged by about five days, and the allium mongolicum regel compound preservative is suitable for industrial production. The allium mongolicum regel compound preservative, whichis prepared by the method disclosed by the invention, containing the nobiletin can guarantee a low weight loss ratio and rotting rate under a high sensory evaluation score; meanwhile, nitrate and nitrite can be effectively prevented from being generated in an allium mongolicum regel storage and transportation process, vegetables can guarantee high safety quality, during a storage period, a respiratory function can be inhibited, the consumption of nutrient substances is reduced, an a high nutrient value and high commercial quality can be kept.
Owner:INNER MONGOLIA AGRICULTURAL UNIVERSITY

Composite allium mongolicum regel preservative containing tea polyphenol and preparation method and use method thereof

The invention relates to the technical field of food preservation, and discloses a composite allium mongolicum regel preservative containing tea polyphenol. The preservative is prepared by mixing teapolyphenol, chitosan and water. Compared with the prior art, the preservative has the beneficial effects that the process is simple, the operation is convenient, the use and storage effects of the composite preservative are better than those of a preservative containing simple tea polyphenol and chitosan, the storage period can be prolonged by about 5 days, and the preservative is suitable for industrial production; the composite allium mongolicum regel preservative containing tea polyphenol prepared by using the method can ensure relatively low weight loss ratio and rotting rate under relatively high sensory evaluation score; meanwhile, the preservative can effectively inhibit the generation of nitrate and nitrite in the storage and transportation process of allium mongolicum regel, so that relatively high safety quality of vegetables can be ensured; and the preservative can inhibit respiration to slow down the consumption of nutrient substances in the storage period, so that relatively high nutritional value and commercial quality can be kept.
Owner:INNER MONGOLIA AGRICULTURAL UNIVERSITY

Photovoltaic flame retardance detection method

The invention relates to the field of photovoltaics, in particular to a photovoltaic flame retardance detection method. The method comprises the following steps: providing a detected part, wherein the detected part is a backboard part or a photovoltaic laminated part; performing laser etching on the detected part; and obtaining state information of the detected part in the laser etching process, and performing analysis according to the state information to obtain a detection result, wherein the state information comprises whether a fire breaks out or not. According to the photovoltaic flame retardance detection method, the state information is observed during laser etching, the production and processing processes can be combined together, and the detection effect is achieved, so that the photovoltaic flame retardance detection can be carried out on a production line; the processing and remoulding of the backboard part or the photovoltaic laminated part in the detection process are expectedly carried out, so that the backboard part or the photovoltaic laminated part is not damaged and the use of the backboard part or the photovoltaic laminated part is not influenced; and the backboard part or the photovoltaic laminated part can be fully inspected, so that the flame retardant property of each backboard part or photovoltaic laminated part is ensured and the potential safety hazards are avoided.
Owner:ZHANGJIAGANG GCL INTEGRATION TECH CO LTD +3
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