122 results about "Loam" patented technology

The invention provides a method suitable for water retention of soil with different textures. In order to better perform size matching between the biochar and soil particles, particle size grading is performed on the biochar according to the size of soil aggregates, and three kinds of biochar with the particle size larger than 2.0 mm, the particle size ranging from 0.25 mm to 2.0 mm and the particle size smaller than 0.25 mm are obtained. The three kinds of biochar with different particle sizes are used in different types of soil respectively, and 5% of biochar with the particle size of 0.25-2.0 mm is selectively applied according to the water retention requirement of the arid area loam farmland; according to the drainage requirements of loam waterlogging areas with more rainfall, 5% of biochar with the particle size larger than 2.0 mm is selectively applied; and 5% of biochar with the particle size smaller than 0.25 mm is selectively applied for water and soil conservation of sandy soil in the arid region. By scientifically regulating and controlling the particle size and the application amount of the biochar, the biochar is matched with the specific properties of the soil, so that the water retention capacity of the soil is improved, and the soil efficiency is improved.

The invention relates to the technical field of pomegranate planting, in particular to a pomegranate cultivating and transplanting device and an operation method thereof.The pomegranate cultivating and transplanting device comprises a driving motor, a storage shell is fixedly mounted at the lower end of the driving motor, a hollow shaft is rotatably connected to the inner wall of the storage shell, and the upper end of the hollow shaft is fixedly connected with the output end of the driving motor; the hollow shaft penetrates through the lower end of the material storage shell, a first screw rod is rotationally connected into a cavity of the hollow shaft, four movable shells capable of moving are installed on the outer side wall of the hollow shaft, a conveying barrel is fixedly installed at the lower end of each movable shell, and a second screw rod is rotationally connected into a cavity of each conveying barrel; according to the invention, the driving motor drives the digging rod to rotate for digging and hole expanding, and the digging cone is used for digging to collect sandy loam soil into the material storage shell for fertilization and stirring, so that pits for transplanting are not too compact, and the soil can be effectively fertilized.

Termite trailing and recruitment compositions, systems, devices, and methods for using a trail of a percentage 2 phenoxyethanol (2-PE) dissolved in water to form a trail to lead the subterranean termites to termite bait or monitoring stations located about a perimeter of a wood containing structure. The termite bait or monitoring stations can be located up to approximately 20 feet apart from one another, and the trail of a percentage 2 phenoxyethanol (2-PE) dissolved in water. The percentage 2 phenoxyethanol (2-PE) dissolved in water range from approximately 0.1% to approximately 2% depending on the different soil types and localized conditions. The types of soil can commonly include sand, sandy & silty soil, loam and clay soil.

An ecological combined constructed wetland system for rare earth mine tail water treatment is characterized in that a downward vertical flow wetland and an upward vertical flow wetland of a three-stage combined wetland system are communicated through a bottom communicating pipe, and the upward vertical flow wetland and a floating island wetland are communicated through an upper overflow weir; the tail water treated by the sewage adjusting tank sequentially flows through the downward vertical flow wetland, the upward vertical flow wetland and the floating island wetland; each of the downward vertical flow wetland and the upward vertical flow wetland comprises a filler layer with a three-layer structure, and the upper layer is a plant substrate layer and is composed of fine sand or sandy loam; the middle layer is a functional material layer and is composed of hematite, zeolite or activated carbon; the lower layer is a supporting layer and is composed of coarse sand or gravel; and the aquatic plants of the floating island wetland adsorb pollutants in the water body through root systems, and decompose residual pollutants by utilizing the metabolism of the plants. The tail water treatment device can efficiently remove particular pollutants such as ammonia nitrogen, nitrate nitrogen, heavy metals and rare earth elements in the tail water of the rare earth mine.

The invention discloses a cement soil stirring device with an automatic proportioning function, and relates to the technical field of cement stirring, the device comprises an equipment support and an automatic feeding pipeline, the equipment support is provided with a stirring bin, the stirring bin is provided with a bin cover, the bin cover is provided with a feeding port, and the automatic feeding pipeline is provided with a discharging port; a discharging opening is formed in the bottom of the stirring bin, an opening and closing mechanism is further arranged at the bottom of the stirring bin and blocks the discharging opening, a rotary sealing disc is arranged at the top of the stirring bin, a plurality of stirring mechanisms are arranged on the rotary sealing disc, and a vibrating mechanism is further arranged in the middle of the stirring bin. The automatic feeding pipeline extends into the stirring bin through the feeding port, the opening and closing mechanism at the bottom of the stirring bin is closed, a proper amount of sandy loam soil, cement, additives and water are poured into the stirring bin through the automatic feeding pipeline, the first servo motor drives the driving bevel gear to rotate, and the driving bevel gear drives the stirring mechanism to stir and mix the cement soil.

The invention discloses a method for imitating wild cultivation of dictyophora rubrovolvata by using a withered bamboo resource. The method comprises the following steps: digging a groove downwards in a soil layer in a gap of a square bamboo forest; stacking a water collecting layer at the bottom of the groove; a lower filling layer composed of broken bamboo residues is laid on the water collecting layer; a middle filling layer formed by uniformly mixing broken bamboo residues and humus soil is laid on the lower filling layer; a culture groove is erected on the middle filling layer in the length direction of the groove and used for cultivating dictyophora rubrovolvata; paving a layer of culture material prepared in advance in the culture tank, punching a plurality of holes in the periphery of a dictyophora rubrovolvata fungus stick, clamping the dictyophora rubrovolvata fungus stick in the middle of the culture material, and uniformly scattering the fungus material in the dictyophora rubrovolvata fungus stick on the surface of the culture material; covering the middle filling layer and the culture material with an upper filling layer formed by sandy loam; and a covering layer covers the surface of the upper filling layer. The method has the advantages of high resource utilization rate, obvious economic benefit and obvious ecological benefit, can realize long-acting moisturizing and nutritional supplement, and can produce mushrooms for many years.

The invention describes a composite loam material having a loam content of at least 35 wt.% and an additive having a glutine glue content and / or a gelling agent content and an acid content.

The invention relates to a preparation method of compound microorganism bacterium soil, microorganisms in the compound microorganism bacterium soil comprise bacillus subtilis YCBA0319 with the preservation number of CGMCC No.33006 and trichoderma longibrachiatum YCFA0522 with the preservation number of CGMCC No.41655. The preparation method comprises the following steps: selecting relatively clean clay or loam, and removing stones and plant residues; mixing the fine soil, the soybean meal and the cottonseed cake, stirring by using a double-shaft paddle type mixer, and spraying sterile water to adjust the water content; sub-packaging into polypropylene woven bags, sterilizing, and cooling for later use; preparing a seed solution of the bacillus subtilis YCBA0319; preparing a spore suspension of the trichoderma longibrachiatum YCFA0522; the bacillus subtilis is 2.5 * 10 < 9 > CFU / g, and the trichoderma longibrachiatum is 5.0 * 10 < 9 > CFU / g. According to the technical scheme, a granular structure is formed with soil in the fermentation process, so that an appropriate living microenvironment is provided for microorganisms, effective microbial communities are protected from being influenced by external adverse conditions, and the activity and function exertion of the effective microbial communities after field application are ensured.

The invention discloses a construction method for forming a modified aggregate based on wood vinegar and charcoal mixing, and belongs to the technical field of carbon sequestration and agricultural soil carbon sequestration. The method mainly comprises the following steps: mixing biochar, organic acid and mineral powder in proportion, adding water, granulating by using a stirrer to form an initial aggregate, stabilizing the initial aggregate through an aging maintenance process, and finally applying the obtained high-stability aggregate to a soil layer. The core of the method is that large-particle, porous and stable aggregates are artificially prefabricated, so that the physical and chemical stability of the biochar in the soil is greatly enhanced, and the decomposition and migration of the biochar are effectively inhibited. According to the method, long-term and efficient storage of atmospheric carbon dioxide is achieved, the granular structure and fertility of the sandy loam soil can be remarkably improved, and the method has the double benefits of soil carbon sequestration and water and fertilizer retention improvement.

The invention discloses a composite base material for ecological slope protection, a preparation method of the composite base material and a slope protection method, and the composite base material comprises sandy loam serving as a matrix of the composite base material; the polyacrylamide forms a continuous cementation network on the surfaces of the sandy loam particles and solidifies the sandy loam particles, and the mixing amount of the polyacrylamide is 0.6%-1.0%; the coal ash is filled in sandy loam soil pores and hydrated to generate C-S-H gel covering the surfaces of sandy loam soil particles, and the doping amount of the coal ash is 1.0%-3.0%; the palm fibers are of a three-dimensional net-shaped reinforced structure in the sandy loam soil, and the mixing amount of the palm fibers is 0.6%-1.2%; the polyacrylamide, the fly ash and the palm fibers jointly form a composite base material containing cementing, filling and reinforcement in the sandy loam soil; according to the scheme, slope protection and ecological restoration are achieved, the composite base material is innovatively designed, the scheme with both ecological benefits and economical efficiency is provided for ecological restoration of the rock slope in the high-cold and high-altitude area, and the scheme has important reference value for sustainable development of ecologically fragile areas in China.

The invention relates to an ecological soil fixation agent suitable for soil improvement in an alpine region and application of the ecological soil fixation agent, and relates to the technical field of soil fixation agents. The ecological soil fixing agent suitable for soil improvement in the high-cold region comprises the following components: 0.15-0.25 wt% of a nano silicate matrix, 98 wt% of an organic-mineral composite phase, 0.03 wt% of a biological enhancement component and 0.02 wt% of a plant response component. A natural material compounding system is creatively adopted, an organic-inorganic-biological synergistic effect mechanism is constructed, soil physical improvement and ecological function restoration are synchronously achieved, field tests prove that the vegetation coverage can be improved by 65-80%, key technical support is provided for plateau ecological barrier construction, and the method has a wide application prospect. The degradation problems of poor water-retaining property, low organic matter content, weak microbial activity and the like of the sandy loam in the high-cold region are effectively solved.

The invention relates to a natural building material panel consisting of individual blanks made of clay and loam, which are arranged seamlessly and offset and are connected by force. Since the individual components (blanks) are already dry, the panel production process is not subject to drying shrinkage, and the final panel can be as large as an entire wall. The overlaps and the fully bonded paper reinforcements on the top and bottom surfaces, as well as between the layers, provide sufficient reinforcement to withstand flexural loads. The internal reinforcements are temporarily protected by the resting blanks in case of fire or water, thus keeping the plate dimensionally stable for longer.

The present invention discloses an agricultural planting trenching machine, comprising a machine body, two sets of side groups integrally arranged on both sides of the machine body, a mounting box and two sets of relatively inclined trenching parts; the mounting box is fixedly installed between the side groups on both sides, an inner shaft is rotatably installed inside the mounting box, and the motors for driving the inner shaft to rotate are installed inside the side groups on both sides, and the trenching part comprises a connecting shaft 1 and a connecting shaft 2 arranged in an inclined manner and a spiral blade for trenching, the connecting shaft 1 and the connecting shaft 2 are connected end to end, the spiral blade is installed on the outside of the connecting shaft 2, and the inner shaft is used to drive the connecting shaft 1 and the connecting shaft 2 to rotate. The present invention cuts soil from uncultivated soil blocks by rotating the trenching parts on both sides, and the soil is transported from the trench to the ground and thrown on both sides of the trench, thereby completing the trenching operation, and the spiral blades can be used to reclaim different types of soil such as clay, loam or sand, and have strong adaptability.

Soluble metal ions contained in clay and loam can migrate to the surface with the moisture present in the clay building materials and react there with oxygen. This can lead to the formation of manganese dioxide and thus to discoloration of the building material surface. This reaction can be reversed using reducing agents such as HDEP and hydrogen peroxide and effectively prevented by the use of chelating agents such as HEDP or citric acid.

The present invention relates to the technical field of crop planting, and in particular to a machine suitable for drilling and planting in clay loam and a method for using the machine, comprising a planting traction frame, a traction frame synchronous speed regulation module being installed on the top of the planting traction frame, and a speed regulation control unit being installed on the top of the traction frame synchronous speed regulation module, a hydraulic device being fixedly connected to the bottom of the traction frame synchronous speed regulation module, and a punching module for drilling holes in clay loam being fixedly connected to the bottom of the hydraulic device; when the present invention is in use, the traction frame synchronous speed regulation module can ensure that when the punching module is drilling, the traction frame synchronous speed regulation module pushes the hydraulic device and the punching module to move, and the moving speed is consistent with the moving speed of the tractor, and the punching module is stationary relative to the punching position, so that the punching module can ensure accurate drilling of holes, and is not likely to cause damage to the planting holes when the punching module is reset, thereby ensuring stable planting of crops.

The present application provides a kind of planting method of reducing allelochemicals and improving polysaccharide content of Rhizoma Polygonati, belongs to plant cultivation technical field.The planting method is planted in acidic sandy loam soil, and "biochar C" is applied to the soil 1-2 times in September-October of the second and third years, and the fruits mature, the stems are laid down after the third year, and then it can be harvested."Biochar C" is a modified, loaded with salicylic acid and UDP-D-galactose biochar.The present application not only helps to improve the physicochemical properties and bacterial community diversity of Rhizoma Polygonati planting soil, thereby reducing the allelochemicals content of Rhizoma Polygonati rhizome, but also can improve the polysaccharide content of rhizome, which helps to improve the quality of Rhizoma Polygonati and enhance its efficacy.

A three-dimensional anti-seepage structure under the sandy loam geological condition is of a three-dimensional closed structure formed by vertical anti-seepage walls, a horizontal anti-seepage layer and a drainage protection system in a cooperative mode, the drainage protection system is arranged in an anti-seepage space, the vertical anti-seepage walls are continuously arranged in the circumferential direction of the anti-seepage space, the vertical anti-seepage walls are stirring pile walls, and the horizontal anti-seepage layer is arranged on the horizontal anti-seepage layer. The horizontal anti-seepage layer is laid at the bottom of the anti-seepage space, a strong permeable stratum is arranged below the horizontal anti-seepage layer, the horizontal anti-seepage layer comprises a composite geomembrane, the composite geomembrane covers the upper portion of the strong permeable stratum in the anti-seepage space, and the drainage protection system comprises a soft longitudinal water collecting concealed pipe and a transverse communicating pipe which are arranged below the composite geomembrane. In conclusion, the anti-seepage device has the advantages that the anti-seepage efficiency is high, the capacity of adapting to differential settlement of a sandy loam foundation is high, pressure is effectively guided, drained and released, the underground water uplift pressure uplift damage risk is reduced, and the stability is high.

Method of radially expanding a tubular element in a borehole, the method comprising steps of: - bending the tubular element radially outward and in axially reverse direction so as to form an expanded tubular section extending around an unexpanded tubular section, wherein the bending occurs in a bending zone; - increasing the length of the expanded tubular section by pushing the unexpanded tubular section in axial direction relative to the expanded tubular section further into the borehole; wherein a borehole following device is positioned in front of the bending zone such that the borehole following device is pushed further into the borehole as the unexpanded tubular section is pushed further into the borehole, and wherein the borehole passes at least partially through soft formation, for example comprising sand, mud, clay, loam, and / or silt.

The invention provides a soil humidity detection method, electronic equipment and a computer program product, a radar technology is adopted to replace a traditional contact sensor, radar waves can penetrate through the surface of soil, characteristic parameters are extracted through reflected signals, and the soil humidity is detected by extracting four key parameters including attenuation slope, phase deviation, energy center-of-mass difference and time delay extension. A multi-dimensional feature space is constructed, and the limitation that a single parameter is easily interfered by the environment is overcome. Humidity detection models are respectively established for sandy soil, clay and loam, limitation of a single model is avoided, and high-precision, high-adaptability and low-cost soil humidity detection is realized.

The present invention relates to a simulation experimental system and method for the blockage and opening of a mid-flow in a hillside rainstorm soil, which integrates an artificial rainfall device, a layered soil simulation device, a drainage and water collection device, and a video monitoring device. The layered soil simulation device is sequentially buried with clay, loam, and sandy soil layers from bottom to top. The preferential flow path is simulated by artificial or natural means such as inserting a steel needle into the soil and then pulling it out, cultivating earthworms to form caves, etc.; by laying loose materials such as pollen, catkins, and artificial particles on the soil surface, the materials scattered on the soil surface in nature that can block the preferential flow path are simulated; by simulating the process of "opening-blocking-opening" of the preferential flow path, the state transition conditions of the blockage or opening of the preferential flow path in the soil are explored. The present invention collects and analyzes the layered runoff on the hillside by simulating hydrological processes such as rainfall, infiltration, and runoff generation, explores the excitation conditions of the mid-flow in a rainstorm soil, and supports further exploration of the key mechanism and constitutive relationship of flash flood formation.

The invention relates to a mould assembling method for sand mould casting, which comprises the following steps of: firstly, preparing a casting sand box, and manufacturing a casting cavity with a to-be-produced forging press bracket outline inside; secondly, pre-positioning the loam core: placing the prepared loam core in a bottom box, positioning core heads at two ends of the loam core, placing a plurality of conical loam strips on the upper surface of the loam core, and covering the loam core with a cover box; then core supports are installed, wherein the cover box is opened, the reduced height of the mud strips at all positions is measured and recorded, and the mud strips are replaced with the core supports with the same height at the same position according to the reduced height of the mud strips; according to the box closing method, due to the fact that the mud strips are arranged, the best height selection of the chaplet can be conveniently confirmed, and the situation that the molding quality is affected due to floating of the mud core is effectively prevented.

The invention belongs to the technical field of vegetation restoration, and particularly relates to a matrix particle for slope vegetation restoration in a high-altitude area and a construction of the matrix particle, and the matrix particle for slope vegetation restoration in the high-altitude area comprises matrix soil and an additive auxiliary agent, the matrix soil comprises the following components in parts by weight: 40-48 parts of planting soil, 10-15 parts of vermiculite, 20-25 parts of straw, 3-6 parts of compound fertilizer and 12-18 parts of turf; the additive auxiliary agent comprises the following components: 0.1-0.8 part of a binder, 5-10 parts of bentonite and 4-8 parts of an anti-transpiration agent, the planting soil is sandy loam, discarded soil or waste farmland soil, and the straw is at least one crop straw of rice, wheat, corn, peanuts, sweet potatoes, oilseed rape and soybeans. The substrate has high heat preservation performance, so that the freeze-thaw resistance of the substrate particles can be improved, vegetation can stably grow on the slope of the high-altitude area, the problems that the slope vegetation is short in growth cycle, low in overwintering rate and poor in vegetation recovery rate are effectively solved, and the recovery effect of the slope vegetation of the high-altitude area can be guaranteed.

The invention discloses a functional fertilizer for improving drought resistance of crops in a shajiang black soil area and a production method, and relates to the technical field of functional fertilizers. The functional fertilizer is prepared from the following raw materials in parts by mass: 70 parts of humic acid, 22 parts of a fermented organic fertilizer, 20 parts of geopolymer particles, 20 parts of crop straws, 12 parts of organic adsorption particles, 6 parts of polymer tackifying powder, 2.5 parts of a microbial compound inoculant, 5-15 parts of molasses synergistic liquid and 0.5-2 parts of polyglutamic acid. Wherein the molasses synergistic liquid is viscous liquid, and the total sugar content of the molasses synergistic liquid is greater than or equal to 20%; the polyglutamic acid is powdery, and the purity is greater than or equal to 85%; the polyglutamic acid comprises low-molecular-weight polyglutamic acid and high-molecular-weight cross-linked polyglutamic acid; the molasses synergistic liquid and polyglutamic acid with different molecular weights are introduced to form slow-release synergistic gel, so that the water-retaining property, the structural stability, the pesticide adsorption and retention capacity and the microbial activity of the shajiang black soil are synergistically improved, and the drought resistance of crops is remarkably enhanced.

The utility model discloses an improved structure of a split type differential shell loam core, and belongs to the technical field of differential shell loam cores. Comprising a core box, cavities, differential shell loam cores and shaft necks, the multiple cavities are formed in the core box, the differential shell loam cores are arranged in the cavities and used for forming inner cavities of differential shells in the casting process, the differential shell loam cores comprise the shaft necks, and chilling blocks are arranged on the differential shell loam cores and located at the shaft necks. The utility model solves the problem that the shrinkage porosity at the flange can be improved by increasing the modulus of the riser and the riser neck in the prior art, but the shrinkage porosity at the shaft neck cannot be solved, and the shrinkage porosity is improved by adjusting the loam core structure at the shaft neck and solidifying the shaft neck at first under the chilling effect of the chiller in the process of putting the chiller at the shaft neck.

Abstract A coal-based solid waste eco-restoration material and preparation method are provided. The preparation method includes: mixing and placing calcium oleate, sodium silicate, polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; seeding the inorganic nano-seed crystal to form a cementitious material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; uniformly mixing the prepared porous sandy loam matrix, coal slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. Compared with the traditional aluminum powder chemical foaming and strong acid foaming, the physical foaming technology adopted in the present disclosure improves the safety of operation while reducing the cost, and is convenient for standardized production. According to the activation of bacteria-fungi composite microbial agent, the nutrient elements in eco-restoration materials can be fully released. The eco-restoration material can be applied to the fields of mine soil restoration, land reclamation and other environmental restoration. FIG. 1 Abstract A coal-based solid waste eco-restoration material and preparation method are provided. The preparation method includes: mixing and placing calcium oleate, sodium silicate, polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; seeding the inorganic nano-seed crystal to form a cementitious material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; uniformly mixing the prepared porous sandy loam matrix, coal slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. Compared with the traditional aluminum powder chemical foaming and strong acid foaming, the physical foaming technology adopted in the present disclosure improves the safety of operation while reducing the cost, and is convenient for standardized production. According to the activation of bacteria-fungi composite microbial agent, the nutrient elements in eco-restoration materials can be fully released. The eco-restoration material can be applied to the fields of mine soil restoration, land reclamation and other environmental restoration. Mixing and placing calcium oleate, sodium silicate, S10 polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; Seeding the inorganic nano-seed crystal to form a cementitious S20 material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; Uniformly mixing the prepared porous sandy loam matrix, coal S30 slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. FIG. 1 20 25 20 15 77 04 M ar 2 02 5 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 a n d o t h e r e n v i r o n m e n t a l r e s t o r a t i o n . S 1 0 S 2 0 S 3 0 F I G . 1 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 a n d o t h e r e n v i r o n m e n t a l r e s t o r a t i o n . S 1 0 S 2 0 S 3 0 F I G . 1 1 / 2 FIG. 1 FIG. 2 1 / 2 Mixing and placing calcium oleate, sodium silicate, S10polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; Seeding the inorganic nano-seed crystal to form a cementitious S20 material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; Uniformly mixing the prepared porous sandy loam matrix, coal S30 slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. FIG. 1 Inorganic nano-seed crystal Hydration products 5 um FIG. 2 20 25 20 15 77 04 M ar 2 02 5 S 1 0 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 S 2 0 S 3 0 F I G . 2 S 1 0 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 S 2 0 S 3 0 F I G . 2

The utility model relates to the technical field of seed sowing, and discloses a corn hybrid seed sowing and soil covering device which comprises a mounting plate, a material collecting box is fixedly connected to the upper surface of the mounting plate, a discharging pipe is connected to the lower surface of the material collecting box in a penetrating mode, a motor is fixedly installed on one side of the discharging pipe, and the output end of the motor is fixedly connected with a sowing disc. A mounting frame is fixedly connected to the lower surface of the mounting plate, two connecting shafts are fixedly connected to one side of the mounting frame, connecting blocks are rotationally connected to the exteriors of the connecting shafts, a soil covering plate is fixedly connected to one side of each connecting block, and an adjusting assembly is arranged on one side of the mounting frame. According to the soil covering device, the soil covering angle of the soil covering plate can be conveniently adjusted, the angle of the soil covering plate can be conveniently adjusted according to the soil texture when seeds are sown, the seeds can be uniformly and appropriately covered with soil, and the soil covering angle can be conveniently increased according to the characteristics that sandy soil is large in soil particle and prone to loosening; and the thickness and the stability of soil covering can be increased.

The present application relates to the technical field of surveying services, in particular to a sandy loam soil photovoltaic pile sinking high-precision positioning method based on image three-dimensional modeling, comprising the following steps: obtaining pile site area images through a preposed binocular industrial camera of a pile machine, constructing a ground point cloud according to soil texture parallax, generating a soil disturbance weight map by analyzing rut soil ridges and pile tip indentations, screening pile site candidate coordinates, combining pile pipe edge offset to calculate pile body deflection and output pile sinking positioning instructions. In the present application, through the joint judgment of soil disturbance and pile body deflection, the sandy loam soil surface layer slip participates in the landing point correction, the coordinate determination is continuously kept corresponding to the soil state under the condition of surface topography change, the horizontal movement mechanism and the pile pressing mechanism synchronously receive positioning control, the landing point drift caused by artificial scale transmission is reduced, the axis inclination caused by the friction of the pile body into the soil is inhibited, the cumulative deviation of the array reference line is limited, and the landing point consistency of the photovoltaic pile site is improved.

Method of forming a lined borehole, the method comprising steps of: - radially expanding a tubular element in a borehole by bending an unexpanded tubular section of the tubular element radially outward and in axially reverse direction so as to form an expanded tubular section extending around the unexpanded tubular section, wherein the bending occurs in a bending zone; and - increasing the length of the expanded tubular section by pushing the unexpanded tubular section in axial direction relative to the expanded tubular section further into the borehole, thereby lining the borehole with the expanded tubular section; wherein a majority of the borehole passes through soft formation, for example comprising sand, mud, clay, loam, and / or silt.

The application discloses a fish and turtle mixed breeding method, which comprises the following steps of pond reconstruction, anti-escape setting and pond cleaning and disinfection. In the pond reconstruction, a fish pond is changed into a mixed breeding pond with a depth of 0.8-2 m, and the pond slope is designed as a gentle slope with an inclination of 35-40 degrees. The soil at the bottom of the pond should have good water retention and air permeability, preferably clay or loam. In the anti-escape setting, an anti-escape wall is formed around the pond by iron sheets or wires, the anti-escape wall is buried in the ground by 10-15 cm, and the ground height of the anti-escape wall is 80-150 cm. In the pond cleaning and disinfection, quicklime is used for disinfection before hibernation, and the whole pond is sprayed and splashed with water according to the proportion of 30 kg per mu. The application belongs to the technical field of aquaculture, and specifically provides a fish and turtle mixed breeding method, in which soft-shelled turtles crawl on the pond bottom, stir the bottom mud, improve the bottom quality, and provide a better water environment for fish. The soft-shelled turtles eat some dead fish and part of miscellaneous fish in the fish pond, and the fish has almost the same color as wild fish, good taste and high selling price.

The utility model relates to agriculture and can be used for seasonal subsurface irrigation of trees, primarily in areas with sandy loam and sandy soils under conditions of extremely high temperatures and water shortages. The subsurface irrigation device, which includes a tank and a protective screen, according to the utility model, features a tank mounted in a permeable casing with a layer of black soil at the bottom. The tank, within the casing, is mounted on a waterproof protective screen made of bentonite or clay. The tank has a tube at the bottom for delivering water to the plant's rhizome. The top of the tank is equipped with a protective ring made of porous concrete, painted a reflective color. A light indicator connected to a float is installed in the neck of the tank.The device is equipped with a synthetic fabric cord placed in a tube to deliver water to the plant's rhizome for capillary irrigation. The cord's outlet end is connected to a geotextile skirt located around the rhizome. This subsurface irrigation device provides the required irrigation rate in sandy and sandy loam soils, maximizing the use of irrigation water for the irrigated tree's root system.