Patents
Literature
Eureka-AI is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Eureka AI

3752results about "Agriculture tools and machines" patented technology

Soil heavy metal passivant for facilities vegetable field and preparation method thereof

InactiveCN101805617AReduce the content of available heavy metalsSimple processAgriculture tools and machinesOrganic fertilisersSoil heavy metalsStone dust
The invention relates to the soil improvement technology and the environment protection technology, in particular to a soil heavy metal passivant for the facilities vegetable field and a preparation method thereof for solving the problem that due to solid heavy metal pollution, the sustainable utilization of the facilities vegetable field is influenced. The soil heavy metal passivant for the facilities vegetable field comprises the following components in percentage by weight: 10 to 30 percent of medical stone powder, 10 to 30 percent of diatomite in powder, 10 to 20 percent of zeolite powder, 20 to 30 percent of lignite and 25 to 35 percent of fly ash. The preparation method for the soil heavy metal passivant comprises the following steps: mixing the medical stone powder passing through a 80-mesh screen, the diatomite in powder passing through a 80-mesh screen and the zeolite powder passing through a 80-mesh screen with lignite and uniformly stirring the mixture; and mixing the mixture with the fly ash passing through a 80-mesh screen, sufficiently stirring the mixture and after mixing uniformly, preparing the soil heavy metal passivant. The invention has simple preparation method and achieves the effects of passivating the soil heavy metals in the facilities vegetable filed and reducing the content of heavy metals in the soil which can be utilized by the crops by synergistic effect of the components.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI

Soil heavy metal composite passivator with humic acid minerals and preparation method thereof

The invention discloses a soil heavy metal composite passivator with humic acid minerals and a preparation method thereof. The soil heavy metal composite passivator is prepared by humic acid mineral powder, fused calcium magnesium phosphate and quick lime according to a certain proportion. The preparation method comprises the following steps: A, preparing the humic acid mineral powder: taking humic acid raw ore, carrying out ball-milling to the humic acid raw ore, and sieving the humic acid raw ore by a 110-140-mesh sieve for standby; and B, uniformly mixing the raw material prepared in the step A, fused calcium magnesium phosphate and quick lime, adjusting the water content of the mixture to be 10% counting by H2O, and stacking the mixture for five-seven days to obtain the soil heavy metal composite passivator with the humic acid minerals, so that the operation is simple and the method is easy to implement. By the invention, the available cadmium content of red sand mud soil with thefull-cadmium content of 10mg/kg (by exogenous adding) is reduced by 0.36-2.25mg/kg within ninety-day culture time, the reduction amplitude reaches up to 4.7-25.7%, the efficiency of the soil heavy metal composite passivator with the humic acid minerals under a water condition of 45% WHC (Water-holding Capacity) is better than that under a flooded condition, and the soil heavy metal composite passivator with the humic acid minerals also has the functions of passivating heavy metal in soil, soil fertility and the like and has significant popularization and application values in vast heavy metalpollution regions.
Owner:INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI

Composite biological soil conditioner and preparation method thereof

The invention discloses a composite biological soil conditioner and a preparation method of the composite biological soil conditioner. The composite biological soil conditioner comprises the following steps: 1) preparing charcoal; 2) modifying the charcoal; 3) fermenting livestock excrement; 4) preparing an ecological organic fertilizer; 5) compounding, wherein the soil conditioner comprises the following materials in parts by weight: 130-150 parts of modified charcoal, 250-280 parts of the ecological organic fertilizer, 30-35 parts of humic acid, 5-8 parts of probiotics, 3-5 parts of active peptide, 32-38 parts of a water retaining agent, and 190-220 parts of an auxiliary. The composite biological soil conditioner has the beneficial effects that the soil conditioner not only strengthens the water holding capacity of soil, but also improves the soil structure, reduces the bulk density of the soil, increases the porosity and the content of organic matters in the soil, regulates the pH value of the soil, improves the microbial flora of the soil, inhibits the growth and propagation of pathogenic bacteria of a root system, and complexes and adsorbs the heavy metal ions in the soil, and therefore, the composite biological soil conditioner is a safe and efficient composite biological soil conditioner.
Owner:浦江县元寿农业科技有限公司

Air-conditioning storage method

The invention discloses an air-conditioning storage method, which comprises the following steps of: a, laying a protection pad layer on the ground; b, laying a composite membrane bottom sleeve on the protection pad layer; c, stacking the stored objects on the composite membrane bottom sleeve; d, laying a top membrane on the top of the stored object stack, and then covering a composite membrane top cover; e, thermally sealing the composite membrane bottom sleeve and the composite membrane top cover together by using a plastic envelope machine, and reserving a hole; f, connecting an exhaust fan at the reserved hole in the step e to exhaust the gas in the stack so as to make the composite membrane attach the stored objects; g, forming a small hole on the opposite side of the reserved hole of the composite membrane, and connecting a gas detector; h, filling nitrogen and/or carbon dioxide into the reserved hole in the step e, and stopping filling when the concentration of the gas measured by the gas detector reaches the preset concentration; and i, sealing all the holes by using a thermal plastic envelope machine, and finishing the storage. The air-conditioning storage method can rapidly kill various insects in the stored objects, suppress mold growth, and guarantee the quality of the stored objects.
Owner:BEIJING YINGFENG LITAI TECH TRADE

Cleaning device with multiple functions of shoveling, pushing, sweeping and brushing

The invention relates to a cleaning device, in particular to a cleaning device with multiple functions of shoveling, pushing, sweeping and brushing. The cleaning device with the multiple functions of shoveling, pushing, sweeping and brushing comprises a fixed plate, a T-shaped block, two rear support frames, and two front support frames; one end of the fixed plate is provided with a magnetic object; the T-shaped block is connected with one end, which is provided with the magnetic object, of the fixed plate through a telescopic mechanism; two support frames are arranged on two sides of the fixed plate and are movably connected with the fixed plate; and one sides of the front support frames are movably connected with the rear support frames and other sides of the front support frames are movably connected with the T-shaped block. The cleaning device with the multiple functions of shoveling, pushing, sweeping and brushing can treat various garbage which is difficult to treat; compared with the conventional cleaning devices such as a big broom and the like, the cleaning device with the multiple functions of shoveling, pushing, sweeping and brushing has the advantages that the efficiency is improved by multiple times, and shoveling, pushing, sweeping and brushing are effectively combined together, so that the cleaning device with the multiple functions of shoveling, pushing, sweeping and brushing can be widely applied to various living fields.
Owner:陆永成

Soil remediation agent for treating heavy metal pollution and production method of soil remediation agent

The invention belongs to the technical field of soil remediation, and in particular relates to a soil remediation agent for treating heavy metal pollution and a production method of the soil remediation agent. The soil remediation agent consists of the following raw materials in percentage by weight: 35 to 65 percent of active molasses yeast waste water chelate powder, 5 to 20 percent of silicon dioxide, 5 to 15 percent of calcium oxide, 1 to 10 percent of magnesium oxide, 0.3 to 10 percent of ammonium persulfate, 5 to 28 percent of humic acid and derivatives thereof, 0.1 to 15 percent of microcapsule inoculants, 0.1 to 5 percent of a macromolecular water-retaining agent, 0.1 to 5 percent of a heavy metal passivant, 1 to 5 percent of auxiliary agents and 1 to 45 percent of inorganic mixed fertilizer. Compared with the prior art, the soil remediation agent provided by the invention has the advantages that the organic waste liquid of yeast industry serves as one of the main raw material, so the environmental pollution caused by the organic waste liquid is reduced and the cost of the soil remediation agent is reduced; precipitation and biological action are combined, so a good effect of treating the heavy metal pollution is achieved; the main components also comprise organic fertilizer and inorganic fertilizer, so the heavy metal pollution can be effectively treated, production and income of crops are increased, continuous cropping resistance of the crops is achieved, and potential application and popularization values are achieved.
Owner:湖北富来地金润肥业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products