2685 results about "Edaphic" patented technology

An agricultural planting system and method comprising a soil sampling and analysis means, wherein soil samples are taken and analyzed in real-time during a planting operation (or, optionally, via a separate, prior operation) to determine the conditions and nutrient content of the soil, and a planting system, wherein the planting system is capable of planting seeds in any arbitrary position on an X-Y plane directly beneath the planting system, whereby the data gathered from the analyzed soil samples is used to determine the optimal placement of seeds or plants in a field in order to take advantage of the soil conditions present and to optimize crop yield.

The invention discloses a preparation method of a functional organic fertilizer for soil restoration. The method comprises the following steps: mixing crushed straws with blue-green algae according to the mass ratio of (1-5):10 to obtain a mixture, and then adding a biomass-transformed complex microbial inoculant and a biomass-transformed inductive material to the mixture; evenly mixing and then carrying out conventional stacking fermentation for 5-15 days, so as to obtain a semi-solid organic fertilizer; and mixing and pelletizing the semi-solid organic fertilizer, clay, biomass carbon ash and a heavy metal ion chelating agent according to the ratio of 1000:(50-200):(50-150):(1-5), so as to obtain the functional organic fertilizer for soil restoration. The organic fertilizer disclosed by the invention has a persistent slow-release fertilizer effect, and can adsorb, chelate and immobilize the heavy metal ions in a deactivation manner, soil fleeciness is facilitated, the moisture retention and the breathability are improved, rooting of plants is facilitated, formation of beneficial components of soil microelements and the like is optimized, the heavy metal-polluted soil is effectively restored, and secondary pollution of the soil is not caused.

An irrigation modeling framework in precision agriculture utilizes a combination of weather data, crop data, and other agricultural inputs to create customized agronomic models for diagnosing and predicting a moisture state in a field, and a corresponding need for, and timing of, irrigation activities. Specific combinations of various agricultural inputs can be applied, together with weather information to identify or adjust water-related characteristics of crops and soils, to model optimal irrigation activities and provide advisories, recommendations, and scheduling guidance for targeted application of artificial precipitation to address specific moisture conditions in a soil system of a field.

The invention relates to an in-situ rain leaching repair system for contaminated soil. The in-situ rain leaching repair system at least comprises three parts, namely a rain collection part, a leaching repair part and a waste water treatment part, wherein the rain collection part is provided with water guiding pipes, a water collecting tank and canals, the leaching repair part is provided with an observation well, water collecting pipes and plants planted for the soil phytoremediation, the observation well is built in a middle-upper layer of contaminated soil, and the water collecting pipes are in the middle-lower layer; and the waste water treatment part is provided with a filter tank, a microorganism putting tank, an electric separation tank, a wind power generating set and the like, leaching waste water is firstly filtered by the filter tank, and is then repaired by the microorganism putting tank, and finally, the leaching waste water passes through the electric separation tank to process heavy metal so as to obtain the purified liquid. The in-situ rain leaching repair system establishes a complete contaminated soil simulated repairing system for the soil in an aeration zone, and combines repair technologies of leaching, plants, microorganisms, electric separation and the like. The in-situ rain leaching repair system has the characteristics of energy conservation, emission reduction and no secondary pollution, and is suitable for repairing the soil in a large-area aeration zone with little pollution.

The invention discloses an electrodynamic and drop-irrigation combined heavy-metal-polluted soil remediation method. The method comprises the following steps of: mounting positive and negative electrodes at the two ends of heavy-metal-polluted soil, wherein the positive and negative electrodes are made from carbon fibers; respectively placing adsorbents between the positive electrode and the polluted soil and between the negative electrode and the polluted soil; placing a drop irrigation device above soil close to the absorbents; slowly dropwise adding electrolyte, buffer solution or a complexing agent and the like into the polluted soil at the two sides, and carrying out periodic polarity switching, wherein heavy metal moves under the action of electric migration and is adsorbed by the adsorbents, thus concentration of the heavy metal in the soil is reduced. According to the invention, drop irrigation technology is applied to polluted soil electric remediation, a complex anode chamber, a complex cathode chamber and an electrolyte circulating system in the traditional electrodynamic remediation are not used, a proper amount of drop irrigation liquid is reserved in the soil, electrolyte and secondary pollution are effectively avoided, and the method disclosed by the invention has the advantages of simple structure, operation convenience, practicability, effectiveness and the like.

The invention discloses a bacterial strain b capable of resisting the growth of heavy metal Cd and reducing sulfate, and a bacterial strain capable of resisting the growth of the heavy metal Cd and solubilizing phosphate. The classification and name of the bacterial strain b and the bacterial strain are respectively enterbacter ludwigii SRB-2-5U-2 and pseudochrobactrum saccharolyticum LB-4-4-1c, which are already preserved in the Common Microbe Center of the China Committee for Culture Collection of Microorganisms. The bacterial strains disclosed by the invention can be used for simultaneously remediating the surface soil, deep soil and rhizosphere soil of a plant, reducing the pollution of Cd to surface water and underground water, and also improving the activity and fertility of the soil.

The invention discloses a method and an apparatus for detecting deep soil humidity through microwave remote sensing, and relates to the technology of microwave remote sensing. The method for detecting deep soil humidity through microwave remote sensing is provided by utilizing an object-penetrative property of microwave low-frequency bands and also disclosed is the apparatus for detecting deep soil humidity through microwave remote sensing. Backscattering coefficients of soils are tested. Soil humidity of different depth is obtained through inverting a deep soil scattering model and a soil dielectric model. A three dimensional image of the distribution of soil humidity in a tested area is formed. The working frequency of the apparatus is in the VHF/UHF band. Soil dielectric constants and humidity parameters of different types of soils in a depth of 0.1-10 m can be detected in a contactless and lossless manner.

The invention discloses a method for planting fruit trees in sloping fields, comprising the steps of 1, garden site selection, wherein sloping fields with the gradient smaller than 20 degrees are selected as the planting area; 2, improvement on soil of the garden site, wherein grass grows between lines so as to prevent water and soil loss, and the grass can be taken as green manure to be returned to the garden site after being cut, so as to further improve the soil environment of the garden and fertilize the soil productivity; 3, planning of functions of the area of the garden site, wherein planting areas, roads, arrangement of drainage and irrigation systems, rooms for management, tools and rooms for agricultural materials, packaging fields, dosing pools and protection forest zones are planted on the area of the garden site; and 4, planting fixing and planting of the seedlings, wherein planting density, planting method and fruit tree support arrangement are determined according to the varieties of the planted fruit trees, the fruit trees are planted in the planting zone, region planning is carried out on the sloping field, the soil of the sloping field is improved, the fruit trees are planted according to lines or rows, and terrace-type planting is not carried out any more, thereby being convenient for work of mechanical devices and keeping the original landform of the sloping field.

The invention relates to an improvement method for soil of a saline and alkaline land. The improvement method mainly comprises the following treatment steps of: carrying out on-site investigation on a plot to be improved; taking a water sample; carrying out soil sample analysis; carrying out water sample analysis; designing an improving scheme; carrying out an indoor leaching test: fully mixing and stirring a soil bulking agent, a chemical amendment and raw soil, filling a soil column with the mixture and watering the soil column to conduct a leaching experiment, wherein the soil bulking agent is added in an amount of 5-20% by volume of the saline-alkaline soil; the chemical amendment is added in an amount of 0.5kg/m2 to 5kg/m2 based on the volume fo the saline-alkaline soil; uniformly stirring the soil bulking agent, the chemical amendment and the saline and alkaline soil according to the ratio; setting a salt eliminating trench; burying a salt eliminating device; carrying out water irrigation and salt elimination; and testing the physical and chemical indexes of leaching water and soil. The invention provides the improvement method for soil of the saline and alkaline land. On the premise of not replacing soil, by virtue of adding the saline and alkaline soil amendment and after operations of engineering stirring and water irrigation and salt elimination, the saline and alkaline land is thoroughly improved, so that the saline and alkaline land can be used for agricultural production or afforestation of city.

The invention discloses a polluted site underground water processing-soil ex-situ leaching restoration integral method. The method comprises the steps that: extracted underground water is purified by using organic bentonite, and is discharged into a water storage tank and is used in a soil leaching process; with a multilevel wet vibration sieve, stones and coarse sand are separated from soil; a soil suspension liquid obtained by sieving enters a hydrocyclone; fine particles smaller than 0.05mm are processed and discharged into a frame filter press, and pollutants are removed with a thermal desorption method; particles larger than 0.05mm and the coarse sand are delivered into a leaching tank; a leaching liquid is a surfactant solution; stirring and ultrasonic processing are carried out, and standing sedimentation is carried out; upper-layer water phase is subjected to filtering and organic bentonite purification, and is discharged into a dispensing tank; lower-layer soil is delivered into a washing tank; stirring and ultrasonic processing are carried out, and standing sedimentation is carried out; soil phase is discharged into the frame filter press; and the soil reaches a standard and can be backfilled. With the method, underground water and soil synchronous restoration and leaching liquid recycling are realized. The method is easy to realize, and can be widely applied. The method can be used in polluted site soil and underground water restoration projects.

The invention discloses a biological organic fertilizer for improving the stress resistance and the output of paddy rice and a preparation method thereof. The biological organic fertilizer comprises the following components: an organic mixture adsorbed with a composite microbe liquid preparation, an organic substance, a Bacillus subtilis inoculum, a Bacillus licheniformis inoculum, a Saccharomyces cerevisiae inoculum, a Rhodopseudomonas palustris inoculum, Lactobacillus plantarum and Lactobacillus acidophilus. The biological organic fertilizer of the invention is rich in beneficial microbe florae and major and trace elements needed by the growth of various crops, so the ecological florae and the trace elements of soil can be supplemented and adjusted, phosphor dissolving and potassium releasing capabilities of soil are enhanced, effective nutrients can be strongly decomposed, converted and synthesized, the fertilizer utilization rate is improved, physical and chemical properties of soil are improved, the granular structure formation is promoted, hardened and morbid soil is restored, the soil fertility is increased, various soil-borne diseases are inhibited, the growth and the fructification of the crops are promoted, and the stress resistance and the output of the crops are substantially improved.

The invention provides a method and a device for measuring photosynthesis, breath and transpiration of a plant canopy or/and breath and evaporation of soil. The device is formed by assembling a box base, three boxes (a light box, a dark box and a bare box), a multichannel magnetic valve, an infrared gas analyzer, a data collector, a temperature sensor, a baroceptor and an air pump. The invention can be used for measuring population photosynthesis-breath-evaporation and breath-evaporation of various plants, such as farmland, lawns, bushes, and the like and observing photosynthesis, breath and transpiration of plants and breath and transpiration of soil at the same place and the same time, and can realize the continuous observation and scientific split of various components.

The invention discloses a method for efficiently reducing the continuous cropping obstacles of greenhouse soil, relating to the technical field of high-efficiency facility agricultural cultivation and meaning a technology of applying calcium cyanamide, organic materials, water and the like in soil before crop sowing or transplanting, and performing a soil reaction in a waiting period in an airtight condition to rapidly and efficiently kill pests in the soil, decrease acidification degree, relieve secondary salinization and increase the utilization rate of nitrogen fertilizer, thereby being capable of efficiently reducing the continuous cropping obstacles of the soil. The method for efficiently reducing the continuous cropping obstacles of greenhouse soil comprises the following steps that: 1) a proper treatment time, wherein soil treatment is performed in the seasons having a daily minimum temperature of not less than 5 DEG C; 2) determination for the dosage of calcium cyanamide, wherein the dosage of calcium cyanamide is usually 20-80 kg in per 667 m<2> of soil; and 3) field operation: (1) broadcasting for organic materials; (2) broadcasting for calcium cyanamide; (3) rotary tillage; (4) furrowing; (5) film coating, water irrigation and sealing; (6) soil reaction; and (7) film opening and airing: after the soil treatment is finished, the film is opened, ventilated or aired, and then crop sowing or transplanting can be performed.

The invention provides the application of trichoderma reesei and sedum plumbizincicola in the remediation of cadmium-polluted farmland soil. The application comprises the following steps of: cutting sedum plumbizincicola seedlings with about 10cm of plant height into soil to be remedied, applying trichoderma reesei FS10-C fermentation liquor or microbial preparation to the rhizosphere of the plant, keeping the soil water content to be 70%wt of the maximum field capacity in the process of remediation, and scissoring the plant along the surface of soil after the plant grows for 60-150 days to complete one remediation process. According to the application, the plant remediation efficiency of the cadmium-polluted farmland soil can be improved; and the sedum plumbizincicola plant remediation efficiency can be improved according to the trichoderma preparation, the biomass of the soil microorganism can be enhanced, the micro-ecological environment of the soil can be improved, and the application is good in ecological efficiency, and suitable for the remediation of the cadmium-polluted farmland soil.

The present invention relates to botanical repairing technology of polluted environment, and is especially the method of utilizing super enriching plant in repairing heavy metal contaminated soil. The method includes planting castor in lead contaminated soil for the root system of castor to absorb lead from soil and removing the castor in blooming stage or maturing stage from the contaminated soil. The said method can eliminate lead from the contaminated soil to repair lead contaminated soil without affecting the physical and chemical properties, and has low power consumption, low cost, easy operation, no secondary pollution and other advantages.

The invention provides a horizontal and vertical combined underdrainage device for improving interlayer soil of coastal mud flat reclamation area farmland. According to the device, coastal mud flat saline-alkaline land is provided with salt leaching channels, drainage bodies, concealed water flow collection and water suction conduits and open drainage ditches. The concealed water flow collection and water suction conduits are buried under the coastal mud flat saline-alkaline land according to the line spacing of 17-25 meters. The salt leaching channels are respectively provided with a vertical shaft every 4-6 meters in the length direction of the concealed water flow collection and water suction conduits, and the drainage bodies are arranged in the vertical shafts. The water inlet ends of the concealed water flow collection and water suction conduits are higher than the water outlet ends of the concealed water flow collection and water suction conduits, and the water outlet ends are connected with the open drainage ditches. The invention further provides a combined drainage method. According to the method, salt in the soil of the coastal mud flat saline-alkaline land is leached and flows into the vertical shaft type salt leaching channels along with water flow, and the concealed water flow collection and water suction conduits collect the water flow in the salt leaching channels and guide the water flow into the open drainage ditches. The device has the advantages of being reasonable in structure, convenient to construct and install, low in cost, short in improvement period, fast in effect, capable of being widely applied and popularized in the areas with the irrigation and drainage conditions and especially suitable for improving the highly-saline soil of the coastal mud flat reclamation area.

The invention relates to a method for improving soil in a saline-alkali land. The method is characterized by comprising the following steps: (1) punching the soil and improving the harden degree of the soil; (2) fertilizing; and (3) watering. A fertilizer applied to the method for improving the soil in the saline-alkali land adopts a formula containing a microorganism organic fertilizer after greening waste treatment, fine sand and a plant growth regulator at a volume ratio of (70-80):(19-29):1. The method has the technical effects and advantages that 1, the punching fertilizing excellently solves the phenomenon that a sloping lawn cannot normally absorb water fertilizer and causes the lawn to vigorously grow; 2, the border trees treated by taking a punching ventilating nutriment-replenishing measure are characterized in that the blade color is deeper, the blade is fat and the leaves are lush; 3, the harden soil is loosened and the water-holding and fertilizer-retaining capabilities of the soil are enhanced; 4, the soil is improved and fertilized; and 5, the environmental protection is benefited.

The invention relates to the technical field of salinized soil conditioners and in particular relates to a soil conditioner, a preparation method thereof and a method for conditioning salinized soil on afforestation lands. The soil conditioner is obtained by the following preparation method: uniformly mixing a required amount of desulphurization gypsum, humic acid, magnesium sulfate, water-soluble polymers and solid acid. By adopting the soil conditioner and an application method of the soil conditioner, the pH value, alkalinity and total salt content of the salinized soil can be reduced, the conditioning cost of the salinized soil is reduced and the conditioning effects of the salinized soil are effectively improved, thus improving the soil texture and fertility and then increasing the seedling survival rate. The soil conditioner and the method have the function of accelerating agricultural development and ecological shelter forest construction of salinized regions.

The invention discloses a biological soil remediation agent which is prepared by mixing a solid passivator and a microbic solution according to the volume-weight ratio of 1:(15-30) (L/kg). The solid passivator comprises the following ingredients in percent by mass: 50-60 percent of clay carrier, 15-30 percent of diatomite, 10-15 percent of humic acid and 10-20 percent of charcoal. The microbic solution comprises a non-spore forming bacterium and streptomyces microflavus. The biological soil remediation agent can be used for remediating a soil ecosystem, improving the crop growth environment, effectively passivating heavy metal pollutants, such as lead, and reducing the availability for plants.

A soil apparatus (e.g., seed firmer) having a locking system is described herein. In one embodiment, the soil apparatus includes a lower base portion for engaging in soil of an agricultural field, an upper base portion, and a neck portion having protrusions to insert into the lower base portion of a base and then lock when a region of the upper base portion is inserted into the lower base portion and this region of the upper base portion presses the protrusions to lock the neck portion to the upper base portion.

The invention provides a fertilizer special for eucalyptus and a fertilizer application method. The fertilizer special for the eucalyptus is characterized in that: a eucalyptus base fertilizer consists of the following fertilizers in percentage by mass: 12 to 30 percent of nitrogen fertilizer, 55 to 70 percent of phosphate fertilizer, 8 to 20 percent of potassium fertilizer, 0.5 to 2 percent of boron fertilizer and 0.2 to 0.5 percent of zinc fertilizer; and a eucalyptus additional fertilizer consists of the following fertilizers in percentage by mass: 20 to 35 percent of nitrogen fertilizer, 50 to 65 percent of phosphate fertilizer, 10 to 30 percent of potassium fertilizer, 0.5 to 2 percent of boron fertilizer and 0.2 to 0.5 percent of zinc fertilizer. The fertilizer special for the eucalyptus contains nitrogen, phosphorus, potassium, boron, zinc, calcium and magnesium which are essential to the growth of eucalyptuses, reduces the waste of fertilizers caused by volatilization, loss and soil absorption and fixation, increases the utilization rate of the fertilizers, improves the growth amount and physiological disease resistance of the forest, develops the fast-growing advantage of the eucalyptuses, realizes the cultivation of short-cycle industrial raw material forest of the eucalyptuses, greatly shortens the circulation period of industrial raw material forest of the eucalyptuses, can also remedy mineral substances and nutrient components which are taken away by hacking the eucalyptuses at the same time to ensure the nutrient balance of the soil, brings maximum economic benefits with minimum fertilizer investment, and realizes the sustainable production of eucalyptus planting areas.